Pager Control for ASP.NET

#region // using Directives
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Text.RegularExpressions;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
using System.Web;
#endregion
 
namespace AspNet.CustomControl
{
    [ToolboxData("<{0}:WebPager runat=\"server\"></{0}:WebPager>")]
    [ToolboxBitmap(typeof(resfinder), "AspNet.CustomControl.WebPager.WebPager.bmp")]
    public class WebPager : WebControl, IPostBackEventHandler, INamingContainer
    {
        string _CssClass = "PagerContainerTable";
        #region // Save/Load Control State
        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);
            Page.RegisterRequiresControlState(this);
            if (!this.CssClass.IsNullOrEmpty())
            {
                _CssClass = this.CssClass;
                base.CssClass = "";
            }
            else
            {
 
                EmbedCss(this.Theme.ToString() + ".css");
            }
        }
        private void EmbedCss(string Resourcename)
        {
            if (Page.Header.FindControl("WebPagerStyle") == null)
            {
                LiteralControl css = new LiteralControl("<link href=\"" + this.GetResourceUrl("WebPager.WebPager" + Resourcename) + "\" type=\"text/css\" rel=\"stylesheet\" />");
                css.ID = "WebPagerStyle";
                Page.Header.Controls.Add(css);
            }
        }
        protected override object SaveControlState()
        {
            object[] objState = new object[2];
            objState[0] = CurrentIndex;
            objState[1] = PageSize;
 
            return objState;
        }
 
        protected override void LoadControlState(object state)
        {
            object[] savedState = (object[])state;
            CurrentIndex = (int)savedState[0];
            PageSize = (int)savedState[1];
        }
        #endregion
 
        #region // PostBack Stuff
        private static readonly object EventCommand = new object();
        public delegate void PageSizeChangeHandler(object sender, PageSizeChangeEventArgs pageSizeChangeEventArgs);
        public event PageSizeChangeHandler PageSizeChange;
 
        public event CommandEventHandler Command
        {
            add { Events.AddHandler(EventCommand, value); }
            remove { Events.RemoveHandler(EventCommand, value); }
        }
 
        protected virtual void OnCommand(CommandEventArgs e)
        {
            CommandEventHandler clickHandler = (CommandEventHandler)Events[EventCommand];
            if (clickHandler != null) clickHandler(this, e);
        }
 
        void IPostBackEventHandler.RaisePostBackEvent(string eventArgument)
        {
            #region //PageSizeChange
            if (eventArgument.Contains("PageSize##"))
            {
                int newPageSize = this.PageSize;
 
                int.TryParse(eventArgument.Substring(eventArgument.LastIndexOf("##") + 2), out newPageSize);
                this.CurrentIndex = 1;
                if (PageSizeChange != null)
                {
                    PageSizeChange(this, new PageSizeChangeEventArgs { CurrentPageSize = this.PageSize, NewPageSize = newPageSize });
                }
                this.PageSize = newPageSize;
 
            }
            #endregion
 
            else
                OnCommand(new CommandEventArgs(this.UniqueID, Convert.ToInt32(eventArgument)));
        }
 
        #endregion
 
        #region // Accessors (Behavioural)

        /// <summary>
        /// Gets or sets total number of rows.
        /// </summary>
        private double _itemCount;
        [Browsable(false)]
        public double ItemCount
        {
            get { return _itemCount; }
            set
            {
                _itemCount = value;
 
                double divide = ItemCount / PageSize;
                double ceiled = System.Math.Ceiling(divide);
                PageCount = Convert.ToInt32(ceiled);
            }
        }
 
        /// <summary>
        /// Gets or sets current page index.
        /// </summary>
        private int _currentIndex = 1;
        [Browsable(false)]
        public int CurrentIndex
        {
            get { return _currentIndex; }
            set { _currentIndex = value; }
        }
 
        /// <summary>
        /// Gets or sets page size (results per page).
        /// </summary>
        private int _pageSize = 15;
        [Category("Behavioural")]
        public int PageSize
        {
            get { return _pageSize; }
            set { _pageSize = value; }
        }
 
        /// <summary>
        /// Show PageSize Selection dropdown
        /// </summary>
        private bool _showPageSizeSelection = false;
        [Category("Behavioural")]
        public bool ShowPageSizeSelection
        {
            get { return _showPageSizeSelection; }
            set { _showPageSizeSelection = value; }
        }
 
        /// <summary>
        /// Set your own page size in page selection dropdown
        /// </summary>
        [Browsable(false)]
        public List<int> PageSizeSelections
        {
            set
            {
                ViewState["PageSizeSelections"] = value;
                // _PageSizeSelections = value;
            }
            get
            {
                List<int> _PageSizeSelections = new List<int>();
 
                if (ViewState["PageSizeSelections"] == null)
                {
                    _PageSizeSelections = new List<int>() { 10, 20, 30, 40, 50 };
                }
                else
                {
                    _PageSizeSelections = ViewState["PageSizeSelections"] as List<int>;
                }
                return _PageSizeSelections;
 
            }
 
        }
 

        /// <summary>
        /// Gets or sets the total number of pages.
        /// </summary>
        private int _pageCount;
        [Browsable(false)]
        private int PageCount
        {
            get { return _pageCount; }
            set { _pageCount = value; }
        }
 
        /// <summary>
        /// Gets or sets the value that indicates whether the Next and Last clause is rendered as UI on page.
        /// </summary>
        private bool _showFirstLast = false;
        [Category("Behavioural")]
        public bool GenerateFirstLastSection
        {
            get { return _showFirstLast; }
            set { _showFirstLast = value; }
        }
 
        /// <summary>
        /// Gets or sets the value that indicates whether the SmartShortcuts are rendered as UI on page.
        /// </summary>
        private bool _enableSSC = true;
        [Category("Behavioural")]
        public bool GenerateSmartShortCuts
        {
            get { return _enableSSC; }
            set { _enableSSC = value; }
        }
 
        /// <summary>
        /// Gets or sets the value that will be used to calculate SmartShortcuts.
        /// </summary>
        private double _sscRatio = 3.0D;
        [Category("Behavioural")]
        public double SmartShortCutRatio
        {
            get { return _sscRatio; }
            set { _sscRatio = value; }
        }
 
        /// <summary>
        /// Gets or sets maximum number of SmartShortcuts that can be rendered.
        /// </summary>
        private int _maxSmartShortCutCount = 6;
        [Category("Behavioural")]
        public int MaxSmartShortCutCount
        {
            get { return _maxSmartShortCutCount; }
            set { _maxSmartShortCutCount = value; }
        }
 
        /// <summary>
        /// Gets or sets a value that to have the SmartShortcuts rendered, the page count must be greater that this value.
        /// </summary>
        private int _sscThreshold = 30;
        [Category("Behavioural")]
        public int SmartShortCutThreshold
        {
            get { return _sscThreshold; }
            set { _sscThreshold = value; }
        }
 
        /// <summary>
        /// Gets or sets the number of rendered page numbers in compact mode.
        /// </summary>
        private int _firstCompactedPageCount = 10;
        [Category("Behavioural")]
        public int CompactModePageCount
        {
            get { return _firstCompactedPageCount; }
            set { _firstCompactedPageCount = value; }
        }
 
        /// <summary>
        /// Gets or sets the number of rendered page numbers in standard mode.
        /// </summary>
        private int _notCompactedPageCount = 15;
        [Category("Behavioural")]
        public int NormalModePageCount
        {
            get { return _notCompactedPageCount; }
            set { _notCompactedPageCount = value; }
        }
 
        /// <summary>
        /// Gets or sets a value that indicates whether Pager renders Alt tooltip.
        /// </summary>
        private bool _altEnabled = true;
        [Category("Behavioural")]
        public bool GenerateToolTips
        {
            get { return _altEnabled; }
            set { _altEnabled = value; }
        }
 
        /// <summary>
        /// Gets or sets a value that indicates whether Pager information cell is rendered.
        /// </summary>
        private bool _infoCellVisible = true;
        [Category("Behavioural")]
        public bool GeneratePagerInfoSection
        {
            get { return _infoCellVisible; }
            set { _infoCellVisible = value; }
        }
 
        /// <summary>
        /// Gets or sets a value that indicats whether GoTo section is rendered.
        /// </summary>
        private bool _generateGoToSection = false;
        [Category("Behavioural")]
        public bool GenerateGoToSection
        {
            get { return _generateGoToSection; }
            set { _generateGoToSection = value; }
        }
 
        /// <summary>
        /// Gets or sets a value that indicates whether hidden hyperlinks should render.
        /// </summary>
        private bool _generateHiddenHyperlinks = false;
        [Category("Behavioural")]
        public bool GenerateHiddenHyperlinks
        {
            get { return _generateHiddenHyperlinks; }
            set { _generateHiddenHyperlinks = value; }
        }
 
        /// <summary>
        /// Gets or sets the hidden hyperlinks' QueryString parameter name.
        /// </summary>
        private string _queryStringParameterName = "pagerControlCurrentPageIndex";
        [Category("Behavioural")]
        public string QueryStringParameterName
        {
            get { return _queryStringParameterName; }
            set { _queryStringParameterName = value; }
        }
 
        #endregion
 
        #region // Accessors (Globalization)
 
        /// <summary>
        /// Gets or sets the text caption displayed as "go" in the pager control.
        /// Default value: go
        /// </summary>
        private string _GO = "go";
        [Category("Globalization")]
        public string GoClause
        {
            get { return _GO; }
            set { _GO = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "of" in the pager control.
        /// Default value: of
        /// </summary>
        private string _OF = "of";
        [Category("Globalization")]
        public string OfClause
        {
            get { return _OF; }
            set { _OF = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "from" in the pager control.
        /// Default value: From
        /// </summary>
        private string _FROM = "From";
        [Category("Globalization")]
        public string FromClause
        {
            get { return _FROM; }
            set { _FROM = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "page" in the pager control.
        /// Default value: Page
        /// </summary>
        private string _PAGE = "Page";
        [Category("Globalization")]
        public string PageClause
        {
            get { return _PAGE; }
            set { _PAGE = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "to" in the pager control.
        /// Default value: to
        /// </summary>
        private string _TO = "to";
        [Category("Globalization")]
        public string ToClause
        {
            get { return _TO; }
            set { _TO = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "Showing Results" in the pager control.
        /// Default value: Showing Results
        /// </summary>
        private string _SHOWING_RESULT = "Showing Results";
        [Category("Globalization")]
        public string ShowingResultClause
        {
            get { return _SHOWING_RESULT; }
            set { _SHOWING_RESULT = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "Show Result" in the pager control.
        /// Default value: Show Result
        /// </summary>
        private string _SHOW_RESULT = "Show Result";
        [Category("Globalization")]
        public string ShowResultClause
        {
            get { return _SHOW_RESULT; }
            set { _SHOW_RESULT = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "to First Page" in the pager control.
        /// Default value: to First Page
        /// </summary>
        private string _BACK_TO_FIRST = "to First Page";
        [Category("Globalization")]
        public string BackToFirstClause
        {
            get { return _BACK_TO_FIRST; }
            set { _BACK_TO_FIRST = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "to Last Page" in the pager control.
        /// Default value: to Last Page
        /// </summary>
        private string _GO_TO_LAST = "to Last Page";
        [Category("Globalization")]
        public string GoToLastClause
        {
            get { return _GO_TO_LAST; }
            set { _GO_TO_LAST = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "Back to Page" in the pager control.
        /// Default value: Back to Page
        /// </summary>
        private string _BACK_TO_PAGE = "Back to Page";
        [Category("Globalization")]
        public string BackToPageClause
        {
            get { return _BACK_TO_PAGE; }
            set { _BACK_TO_PAGE = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "Next to Page" in the pager control.
        /// Default value: Next to Page
        /// </summary>
        private string _NEXT_TO_PAGE = "Next to Page";
        [Category("Globalization")]
        public string NextToPageClause
        {
            get { return _NEXT_TO_PAGE; }
            set { _NEXT_TO_PAGE = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "Last Page" in the pager control.
        /// Default value: >>
        /// </summary>
        private string _LAST = ">>";
        [Category("Globalization")]
        public string LastClause
        {
            get { return _LAST; }
            set { _LAST = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "First Page" in the pager control.
        /// Default value: <<
        /// </summary>
        private string _FIRST = "<<";
        [Category("Globalization")]
        public string FirstClause
        {
            get { return _FIRST; }
            set { _FIRST = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "Previous Page" in the pager control.
        /// Default value: <
        /// </summary>
        private string _previous = "<";
        [Category("Globalization")]
        public string PreviousClause
        {
            get { return _previous; }
            set { _previous = value; }
        }
 
        /// <summary>
        /// Gets or sets the text caption displayed as "Next Page" in the pager control.
        /// Default value: >
        /// </summary>
        private string _next = ">";
        [Category("Globalization")]
        public string NextClause
        {
            get { return _next; }
            set { _next = value; }
        }
 
        /// <summary>
        /// Gets or sets a value that indicates whether pager control should render RTL or LTR.
        /// </summary>
        private bool _rightToLeft = false;
        [Category("Globalization")]
        public bool RTL
        {
            get { return _rightToLeft; }
            set { _rightToLeft = value; }
        }
 
        [Category("Appearance"), DefaultValue(WebPagerTheme.Light), Browsable(false)]
        public WebPagerTheme Theme
        {
            get
            {
                if (ViewState["WebPagerTheme"] == null)
                    return WebPagerTheme.Light;
                else
 
                    return (WebPagerTheme)Enum.Parse(typeof(WebPagerTheme), ViewState["WebPagerTheme"].ToString());
            }
 
            set
            {
                if (HttpContext.Current != null)
                {
                    ViewState["WebPagerTheme"] = value;
                }
            }
 
        }
        #endregion
 
        #region // Render Utilities
        private string GenerateAltMessage(int pageNumber)
        {
            StringBuilder altGen = new StringBuilder();
            altGen.Append(pageNumber == CurrentIndex ? ShowingResultClause : ShowResultClause);
            altGen.Append(" ");
            altGen.Append(((pageNumber - 1) * PageSize) + 1);
            altGen.Append(" ");
            altGen.Append(ToClause);
            altGen.Append(" ");
            altGen.Append(pageNumber == PageCount ? ItemCount : pageNumber * PageSize);
            altGen.Append(" ");
            altGen.Append(OfClause);
            altGen.Append(" ");
            altGen.Append(ItemCount);
 
            return altGen.ToString();
        }
 
        private string GetAlternativeText(int pageNumber)
        {
            return GenerateToolTips ? string.Format(" title=\"{0}\"", GenerateAltMessage(pageNumber)) : "";
        }
 
        private string RenderFirst()
        {
            string templateCell = "<td class=\"PagerOtherPageCells\"><a class=\"PagerHyperlinkStyle\" href=\"{0}\" title=\"" + " " + BackToFirstClause + " " + "\"> " + FirstClause + " </a></td>";
            return String.Format(templateCell, Page.ClientScript.GetPostBackClientHyperlink(this, "1"));
        }
 
        private string RenderLast()
        {
            string templateCell = "<td class=\"PagerOtherPageCells\"><a class=\"PagerHyperlinkStyle\" href=\"{0}\" title=\"" + " " + GoToLastClause + " " + "\"> " + LastClause + " </a></td>";
            return String.Format(templateCell, Page.ClientScript.GetPostBackClientHyperlink(this, PageCount.ToString()));
        }
 
        private string RenderBack()
        {
            string templateCell = "<td class=\"PagerOtherPageCells\"><a class=\"PagerHyperlinkStyle\" href=\"{0}\" title=\"" + " " + BackToPageClause + " " + (CurrentIndex - 1).ToString() + "\"> " + PreviousClause + " </a></td>";
            return String.Format(templateCell, Page.ClientScript.GetPostBackClientHyperlink(this, (CurrentIndex - 1).ToString()));
        }
 
        private string RenderNext()
        {
            string templateCell = "<td class=\"PagerOtherPageCells\"><a class=\"PagerHyperlinkStyle\" href=\"{0}\" title=\"" + " " + NextToPageClause + " " + (CurrentIndex + 1).ToString() + "\"> " + NextClause + " </a></td>";
            return String.Format(templateCell, Page.ClientScript.GetPostBackClientHyperlink(this, (CurrentIndex + 1).ToString()));
        }
 
        private string RenderCurrent()
        {
            return "<td class=\"PagerCurrentPageCell\"><span class=\"PagerHyperlinkStyle\" " + GetAlternativeText(CurrentIndex) + " > " + CurrentIndex.ToString() + " </span></td>";
        }
 
        private string RenderOther(int pageNumber)
        {
            string templateCell = "<td class=\"PagerOtherPageCells\"><a class=\"PagerHyperlinkStyle\" href=\"{0}\" " + GetAlternativeText(pageNumber) + " > " + pageNumber.ToString() + " </a></td>";
            return String.Format(templateCell, Page.ClientScript.GetPostBackClientHyperlink(this, pageNumber.ToString()));
        }
 
        private string RenderSSC(int pageNumber)
        {
            string templateCell = "<td class=\"PagerSSCCells\"><a class=\"PagerHyperlinkStyle\" href=\"{0}\" " + GetAlternativeText(pageNumber) + " > " + pageNumber.ToString() + " </a></td>";
            return String.Format(templateCell, Page.ClientScript.GetPostBackClientHyperlink(this, pageNumber.ToString()));
        }
 
        private string RenderGoTo()
        {
            string templateCell = "<td style=\"padding:1px 1px 1px 1px;\" class=\"PagerOtherPageCells\"><div  önclick=\"handleGoToVisibility()\" class=\"GoToLabel\"> Go To </div><img id=\"goto_img\"  önclick=\"handleGoToVisibility()\" src=\"" + this.GetResourceUrl("WebPager.arr_right.gif") + "\" alt=\"\" class=\"GoToArrow\"/> <div id=\"div_goto\" style=\"display:none;\"><select class=\"GoToSelect\" name=\"ddlTes\" id=\"ddlTes\"  önchange=\"javascript:handleGoto(this);\">{0}</select></div></td>";
            string listItemTemplate = "<option {0} value=\"{1}\">{2}</option>";
 
            StringBuilder sb = new StringBuilder();
            for (int i = 1; i <= this.PageCount; i++)
            {
                sb.Append(string.Format(listItemTemplate, i == CurrentIndex ? "selected=\"selected\" class=\"GoToSelectedOption\"" : "", Page.ClientScript.GetPostBackClientHyperlink(this, i.ToString()), i));
            }
            return string.Format(templateCell, sb.ToString());
        }
 
        private string RenderGoToScript()
        {
            StringBuilder sb = new StringBuilder();
 
            sb.Append(@"
                                function handleGoto(selectObj) {
                                    eval(selectObj.options[selectObj.selectedIndex].value);
                                }
 
                                function handleGoToVisibility() {
                                    var gotoElem = document.getElementById('div_goto');
                                    gotoElem.style.display = gotoElem.style.display == 'none' ? 'inline' : 'none';
                                    var gotoImg = document.getElementById('goto_img');
                                    
                                ");
 
            sb.AppendFormat("gotoImg.src = gotoElem.style.display == 'none' ? '{0}' : '{1}';",
                                    this.GetResourceUrl("WebPager.arr_right.gif"),
                                     this.GetResourceUrl("WebPager.arr_left.gif")
                                    );
            sb.Append("}");
 

 
            string goToScript = "<script type=\"text/javascript\">{0}</script>";
 
            return string.Format(goToScript, sb.ToString());
        }
 
        private string RenderPageSizeSelection()
        {
            string templateCell = "<td style=\"padding:1px 1px 1px 1px;\" class=\"PagerOtherPageCells\"><div class=\"GoToLabel\"> Page size </div></td><td><div id=\"div_pagesize\"><select class=\"PageSizeSelect\" name=\"ddlTes\" id=\"ddlPageSize\"   önchange=\"javascript:handleGoto(this);\">{0}</select></div></td>";
            string listItemTemplate = "<option {0} value=\"{1}\">{2}</option>";
 
            StringBuilder sb = new StringBuilder();
            foreach (int i in PageSizeSelections)
            {
                sb.Append(string.Format(listItemTemplate, i == PageSize ? "selected=\"selected\" class=\"GoToSelectedOption\"" : "", Page.ClientScript.GetPostBackClientHyperlink(this, "PageSize##" + i.ToString()), i));
            }
            return string.Format(templateCell, sb.ToString());
        }
        #endregion
 
        #region // Smart ShortCut Stuff
 
        private List<int> _smartShortCutList;
        private List<int> SmartShortCutList
        {
            get { return _smartShortCutList; }
            set { _smartShortCutList = value; }
        }
 
        private void CalculateSmartShortcutAndFillList()
        {
            _smartShortCutList = new List<int>();
            double shortCutCount = this.PageCount * SmartShortCutRatio / 100;
            double shortCutCountRounded = System.Math.Round(shortCutCount, 0);
            if (shortCutCountRounded > MaxSmartShortCutCount) shortCutCountRounded = MaxSmartShortCutCount;
            if (shortCutCountRounded == 1) shortCutCountRounded++;
 
            for (int i = 1; i < shortCutCountRounded + 1; i++)
            {
                int calculatedValue = (int)(System.Math.Round((this.PageCount * (100 / shortCutCountRounded) * i / 100) * 0.1, 0) * 10);
                if (calculatedValue >= this.PageCount) break;
                SmartShortCutList.Add(calculatedValue);
            }
        }
 
        /* smart shortcut list calculator and list */
        private void RenderSmartShortCutByCriteria(int basePageNumber, bool getRightBand, HtmlTextWriter writer)
        {
            if (IsSmartShortCutAvailable())
            {
 
                List<int> lstSSC = this.SmartShortCutList;
 
                int rVal = -1;
                if (getRightBand)
                {
                    for (int i = 0; i < lstSSC.Count; i++)
                    {
                        if (lstSSC[i] > basePageNumber)
                        {
                            rVal = i;
                            break;
                        }
                    }
                    if (rVal >= 0)
                    {
                        for (int i = rVal; i < lstSSC.Count; i++)
                        {
                            if (lstSSC[i] != basePageNumber)
                            {
                                writer.Write(RenderSSC(lstSSC[i]));
                            }
                        }
                    }
                }
                else if (!getRightBand)
                {
 
                    for (int i = 0; i < lstSSC.Count; i++)
                    {
                        if (basePageNumber > lstSSC[i])
                        {
                            rVal = i;
                        }
                    }
 
                    if (rVal >= 0)
                    {
                        for (int i = 0; i < rVal + 1; i++)
                        {
                            if (lstSSC[i] != basePageNumber)
                            {
                                writer.Write(RenderSSC(lstSSC[i]));
                            }
                        }
                    }
                }
            }
        }
 
        bool IsSmartShortCutAvailable()
        {
            return this.GenerateSmartShortCuts && this.SmartShortCutList != null && this.SmartShortCutList.Count != 0;
        }
        #endregion
 
        #region // Render "SearchEngineFriendly" hyperlinks in HiddenDiv
        private string RenderHiddenDiv()
        {
            System.Text.RegularExpressions.Regex regEx;
            Uri theURL = System.Web.HttpContext.Current.Request.Url;
            bool hasQueryStringParam = !string.IsNullOrEmpty(System.Web.HttpContext.Current.Request.ServerVariables["QUERY_STRING"]) ? true : false;
            string tempHyperlink = "<a href=\"{0}\">page {1}</a>";
            string tempDiv = "<div style=\"display:none;\">{0}</div>";
            StringBuilder sb = new StringBuilder();
 
            if (hasQueryStringParam && System.Web.HttpContext.Current.Request.QueryString[this.QueryStringParameterName] != null)
            {
                regEx = new Regex(this.QueryStringParameterName + @"\=\d*", RegexOptions.Compiled | RegexOptions.Singleline);
                for (int i = 0; i < this.NormalModePageCount; i++)
                {
                    sb.Append(string.Format(tempHyperlink,
                                regEx.Replace(theURL.ToString(), this.QueryStringParameterName + "=" + (i + this.CurrentIndex)), i + this.CurrentIndex)
                        );
                }
            }
            else
            {
                string qsParameterName = "";
                for (int i = 0; i < this.NormalModePageCount; i++)
                {
                    qsParameterName = string.Format("{0}={1}", this.QueryStringParameterName, i + this.CurrentIndex);
                    sb.Append(string.Format(tempHyperlink,
                                hasQueryStringParam ? theURL.ToString() + "&" + qsParameterName : theURL.ToString() + "?" + qsParameterName,
                                i + this.CurrentIndex)
                            );
                }
 
            }
 
            return string.Format(tempDiv, sb.ToString());
        }
        #endregion
 
        #region // Override Control's Render operation
        protected override void Render(HtmlTextWriter writer)
        {
 
            if (Page != null) Page.VerifyRenderingInServerForm(this);
 
            if (this.PageCount > this.SmartShortCutThreshold && GenerateSmartShortCuts)
            {
                CalculateSmartShortcutAndFillList();
            }
            writer.AddAttribute(HtmlTextWriterAttribute.Id, base.ClientID);
            writer.RenderBeginTag(HtmlTextWriterTag.Div);
 
            writer.AddAttribute(HtmlTextWriterAttribute.Cellpadding, "3");
            writer.AddAttribute(HtmlTextWriterAttribute.Cellspacing, "1");
            writer.AddAttribute(HtmlTextWriterAttribute.Border, "0");
            writer.AddAttribute(HtmlTextWriterAttribute.Class, _CssClass);
            if (RTL) writer.AddAttribute(HtmlTextWriterAttribute.Dir, "rtl");
            writer.RenderBeginTag(HtmlTextWriterTag.Table);
            writer.RenderBeginTag(HtmlTextWriterTag.Tr);
 
            if (GeneratePagerInfoSection)
            {
                writer.AddAttribute(HtmlTextWriterAttribute.Class, "PagerInfoCell");
                writer.RenderBeginTag(HtmlTextWriterTag.Td);
                writer.Write(PageClause + " " + CurrentIndex.ToString() + " " + OfClause + " " + PageCount.ToString());
                writer.RenderEndTag();
            }
 
            if (GenerateFirstLastSection && CurrentIndex != 1)
                writer.Write(RenderFirst());
 
            if (CurrentIndex != 1)
                writer.Write(RenderBack());
 
            if (CurrentIndex < CompactModePageCount)
            {
 
                if (CompactModePageCount > PageCount) CompactModePageCount = PageCount;
 
                for (int i = 1; i < CompactModePageCount + 1; i++)
                {
                    if (i == CurrentIndex)
                    {
                        writer.Write(RenderCurrent());
                    }
                    else
                    {
                        writer.Write(RenderOther(i));
                    }
                }
 
                RenderSmartShortCutByCriteria(CompactModePageCount, true, writer);
 
            }
            else if (CurrentIndex >= CompactModePageCount && CurrentIndex < NormalModePageCount)
            {
 
                if (NormalModePageCount > PageCount) NormalModePageCount = PageCount;
 
                for (int i = 1; i < NormalModePageCount + 1; i++)
                {
                    if (i == CurrentIndex)
                    {
                        writer.Write(RenderCurrent());
                    }
                    else
                    {
                        writer.Write(RenderOther(i));
                    }
                }
 
                RenderSmartShortCutByCriteria(NormalModePageCount, true, writer);
 
            }
            else if (CurrentIndex >= NormalModePageCount)
            {
                int gapValue = NormalModePageCount / 2;
                int leftBand = CurrentIndex - gapValue;
                int rightBand = CurrentIndex + gapValue;
 

                RenderSmartShortCutByCriteria(leftBand, false, writer);
 
                for (int i = leftBand; (i < rightBand + 1) && i < PageCount + 1; i++)
                {
                    if (i == CurrentIndex)
                    {
                        writer.Write(RenderCurrent());
                    }
                    else
                    {
                        writer.Write(RenderOther(i));
                    }
                }
 
                if (rightBand < this.PageCount)
                {
 
                    RenderSmartShortCutByCriteria(rightBand, true, writer);
                }
            }
 
            if (CurrentIndex != PageCount)
                writer.Write(RenderNext());
 
            if (GenerateFirstLastSection && CurrentIndex != PageCount)
                writer.Write(RenderLast());
 
            if (GenerateGoToSection)
                writer.Write(RenderGoTo());
            if (ShowPageSizeSelection)
                writer.Write(RenderPageSizeSelection());
 
            writer.RenderEndTag();
            writer.RenderEndTag();
 
            writer.RenderEndTag();
 
            if (GenerateGoToSection)
                writer.Write(RenderGoToScript());
 
            if (GenerateHiddenHyperlinks)
                writer.Write(RenderHiddenDiv());
        }
        #endregion
    }
    public enum WebPagerTheme { Dark, Light }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace AspNet.CustomControl
{
   public class PageSizeChangeEventArgs:EventArgs
    {
       public int CurrentPageSize { set; get; }
       public int NewPageSize { set; get; }
    }
}
 

//WebPager
[assembly: WebResource("AspNet.CustomControl.Resources.WebPager.arr_left.gif", "image/gif")]
[assembly: WebResource("AspNet.CustomControl.Resources.WebPager.arr_right.gif", "image/gif")]
[assembly: WebResource("AspNet.CustomControl.Resources.WebPager.WebPagerDark.css", "text/css")]
[assembly: WebResource("AspNet.CustomControl.Resources.WebPager.WebPagerLight.css", "text/css")]

internal static class Extensions
{
 
  
    public static string GetResourceUrl(this Control container, string ResourceName)
    {
        return container.Page.ClientScript.GetWebResourceUrl(container.GetType(), ("AspNet.CustomControl.Resources." + ResourceName)).Replace("&", "&");
    }
 
}
 

.PagerContainerTable { border-right: #333333 1px solid; border-top: #333333 1px solid; border-left: #333333 1px solid; color: #d1d1e1; border-bottom: #333333 1px solid; background-color: #FFFFFF; } .PagerContainerTable .PagerInfoCell { padding-right: 6px; padding-left: 6px; padding-bottom: 3px; font: bold 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; color: #f0f1f2; padding-top: 3px; white-space: nowrap; background-color: #990000; font-weight:normal; } .PagerContainerTable .PagerInfoCell:link { color: #ffcc66; text-decoration: none; } .PagerContainerTable .PagerInfoCell:visited { color: #ffcc66; text-decoration: none; } .PagerContainerTable .PagerCurrentPageCell { color: #990000; background-color: #FFFF99; cursor:default; } .PagerContainerTable .PagerOtherPageCells { background-color: #f0f1f2; } .PagerContainerTable .PagerSSCCells { background-color: #cccccc; } .PagerContainerTable .PagerHyperlinkStyle { font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .PagerHyperlinkStyle:hover { color: #000000; text-decoration: none; font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .PagerHyperlinkStyle:link { color: #000000; text-decoration: none; font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .PagerHyperlinkStyle:visited { color: #000000; text-decoration: none; font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .PagerHyperlinkStyle:active { color: #000000; text-decoration: none; font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .GoToLabel { font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; color:#333333; cursor:pointer; font-size:65%; vertical-align:middle; display:inline; } .PagerContainerTable .GoToSelect { font-size:55%; } .PagerContainerTable .GoToSelectedOption { color:#f9f9f9; background-color:#666666; } .PagerContainerTable .GoToArrow { vertical-align:middle; cursor:pointer; } .PageSizeSelect{font-size:10px;}

.PagerContainerTable { border-right: #333333 1px solid; border-top: #333333 1px solid; border-left: #333333 1px solid; color: #d1d1e1; border-bottom: #333333 1px solid; background-color: #000000; } .PagerContainerTable .PagerInfoCell { padding-right: 6px; padding-left: 6px; padding-bottom: 3px; font: bold 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; color: #ffcc66; padding-top: 3px; white-space: nowrap; background-color: #001b52; font-weight:normal; } .PagerContainerTable .PagerInfoCell:link { color: #ffcc66; text-decoration: none; } .PagerContainerTable .PagerInfoCell:visited { color: #ffcc66; text-decoration: none; } .PagerContainerTable .PagerCurrentPageCell { color: #ffffff; background-color: #333333; } .PagerContainerTable .PagerOtherPageCells { color: #ffffff; background-color: #222222; } .PagerContainerTable .PagerSSCCells { background-color: #444444; } .PagerContainerTable .PagerHyperlinkStyle { font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .PagerHyperlinkStyle:hover { color: #ffcc66; text-decoration: none; font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .PagerHyperlinkStyle:link { color: #ffcc66; text-decoration: none; font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .PagerHyperlinkStyle:visited { color: #ffcc66; text-decoration: none; font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .PagerHyperlinkStyle:active { color: #ffcc66; text-decoration: none; font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; } .PagerContainerTable .GoToLabel { font: 11px arial, verdana, geneva, lucida, 'lucida grande' , arial, helvetica, sans-serif; color:#f9f9f9; cursor:pointer; font-size:65%; vertical-align:middle; display:inline; } .PagerContainerTable .GoToSelect { font-size:55%; } .PagerContainerTable .GoToSelectedOption { color:#f9f9f9; background-color:#666666; } .PagerContainerTable .GoToArrow { vertical-align:middle; cursor:pointer; } .PageSizeSelect{font-size:10px;}

                    <mom:WebPager ID="pager1"  runat="server" EnableViewState="false" Theme="Light" OnCommand="pager_Command"   önpagesizechange="WebPager1_PageSizeChange"
                        GenerateFirstLastSection="True" GenerateGoToSection="True" GenerateHiddenHyperlinks="False" ShowPageSizeSelection="true" />
 

  public void pager_Command(object sender, CommandEventArgs e)
    {
        int currnetPageIndx = Convert.ToInt32(e.CommandArgument);
        pager1.CurrentIndex = currnetPageIndx;
        BindRepeater();
    }
    protected void WebPager1_PageSizeChange(object sender, MomentumInfotech.CustomControl.PageSizeChangeEventArgs pageSizeChangeEventArgs)
    {
        lblNewPageSize.Text = "NewPageSize - " + pageSizeChangeEventArgs.NewPageSize + " , CurrentPageSize" + pageSizeChangeEventArgs.CurrentPageSize;
        pager1.PageSize = pageSizeChangeEventArgs.NewPageSize;
        BindRepeater();
    }

private string RenderGoTo()
        {
            String functionHandleGoTo = "handleGoto_" + this.UniqueID;
            String functionHandleGoToVisibility = "handleGoToVisibility_" + this.UniqueID + "()";
            String Controldiv_goto = "div_goto_" + this.UniqueID;
            String Controlgotoimg = "gotoImg_" + this.UniqueID; 
 
            string templateCell = "<td style=\"padding:1px 1px 1px 1px;\" class=\"PagerOtherPageCells\"><div onclick=\" "+functionHandleGoToVisibility+"\" class=\"GoToLabel\"> Vai a pagina </div><img id=\""+Controlgotoimg+"\" onclick=\""+functionHandleGoToVisibility+"\" src=\"" + Page.ClientScript.GetWebResourceUrl(this.GetType(), "ASPnetPagerV2_8.Images.arr_right.gif") + "\" alt=\"\" class=\"GoToArrow\"/> <div id=\""+Controldiv_goto+"\" style=\"display:none;\"><select class=\"GoToSelect\" name=\"ddlTes\" id=\"ddlTes\" onchange=\"javascript:"+functionHandleGoTo+"(this);\">{0}</select></div></td>";
            string listItemTemplate = "<option {0} value=\"{1}\">{2}</option>";
 
            StringBuilder sb = new StringBuilder();
            for (int i = 1; i <= this.PageCount; i++)
            {
                sb.Append(string.Format(listItemTemplate, i == CurrentIndex ? "selected=\"selected\" class=\"GoToSelectedOption\"" : "", Page.ClientScript.GetPostBackClientHyperlink(this, i.ToString()), i));
            }
            return string.Format(templateCell, sb.ToString());
        }
 
        private string RenderGoToScript()
        {
            StringBuilder sb = new StringBuilder();
            String functionHandleGoTo= "function handleGoto_" + this.UniqueID;
		    String functionHandleGoToVisibility="function handleGoToVisibility_"+ this.UniqueID+"()";
		    String Controldiv_goto="div_goto_"+ this.UniqueID;
		    String Controlgotoimg="gotoImg_"+ this.UniqueID; 
 
            sb.Append(@"
                                "+functionHandleGoTo+@"(selectObj) {
                                    eval(selectObj.options[selectObj.selectedIndex].value);
                                }
 
                                "+functionHandleGoToVisibility+@" {
                                    var gotoElem = document.getElementById('"+Controldiv_goto+@"');
                                    gotoElem.style.display = gotoElem.style.display == 'none' ? 'inline' : 'none';
                                    var gotoImg = document.getElementById('"+Controlgotoimg+@"');
                                    
                                ");
 
            sb.AppendFormat("gotoImg.src = gotoElem.style.display == 'none' ? '{0}' : '{1}';",
                                    Page.ClientScript.GetWebResourceUrl(this.GetType(), "ASPnetPagerV2_8.Images.arr_right.gif"),
                                    Page.ClientScript.GetWebResourceUrl(this.GetType(), "ASPnetPagerV2_8.Images.arr_left.gif")
                                    );
            sb.Append("}");
 

 
            string goToScript = "<script type=\"text/javascript\">{0}</script>";
 
            return string.Format(goToScript, sb.ToString());
        }