Open Source Extensible Enterprise n-tier Application Framework with Multilayered Architecture

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Web.UI.WebControls;
using SiberTek.Xenta.Presentation;
using SiberTek.Xenta.Presentation.Presenters;
using SiberTek.Xenta.Presentation.Resources;
using SiberTek.Xenta.Presentation.Views;
using SiberTek.Xenta.Utils;
using SiberTek.Xenta.Web.Controls;
using SiberTek.Xenta.Web.Utils;

namespace SiberTek.Xenta.Web.Admin.Modules
{
    public partial class CurrencyGrid : ViewBase<CurrencyPresenter>, IGrid, ICommandHandler
    {
        #region Properties
        [Browsable(false)]
        public DateTime? CreatedOnStart
        {
            get
            {
                return (DateTime?)ViewState["CreatedOnStart"];
            }
            set
            {
                ViewState["CreatedOnStart"] = value;
            }
        }

        [Browsable(false)]
        public DateTime? CreatedOnEnd
        {
            get
            {
                return (DateTime?)ViewState["CreatedOnEnd"];
            }
            set
            {
                ViewState["CreatedOnEnd"] = value;
            }
        }

        public bool ShowHidden
        {
            get
            {
                return Convert.ToBoolean(ViewState["ShowHidden"]);
            }
            set
            {
                ViewState["ShowHidden"] = value;
            }
        }

        public int RowCount
        {
            get
            {
                return gvCurrencyGrid.Rows.Count;
            }
        }
        #endregion

        #region Methods
        public override void BindData()
        {
            DataContainer["CreatedOnStart"] = CreatedOnStart;
            DataContainer["CreatedOnEnd"] = CreatedOnEnd;
            DataContainer["ShowHidden"] = ShowHidden;

            Presenter.LoadCollection();

            gvCurrencyGrid.DataSource = DataContainer["CurrencyCollection"];
            gvCurrencyGrid.DataBind();

            base.BindData();
        }

        public void SetColumnVisibility(int index, bool value)
        {
            if(index >= 0 && index < gvCurrencyGrid.Columns.Count)
            {
                gvCurrencyGrid.Columns[index].Visible = value;
            }
        }
        #endregion

        #region Handlers
        protected override void OnInit(EventArgs e)
        {
            if(!IsPostBack)
            {
                gvCurrencyGrid.Columns[1].HeaderText = StringManager.GetString("Admin.CurrencyGrid.colCurrencyID.HeaderText");
                gvCurrencyGrid.Columns[2].HeaderText = StringManager.GetString("Admin.CurrencyGrid.colDetails.HeaderText");
                gvCurrencyGrid.Columns[3].HeaderText = StringManager.GetString("Admin.CurrencyGrid.colName.HeaderText");
                gvCurrencyGrid.Columns[4].HeaderText = StringManager.GetString("Admin.CurrencyGrid.colDisplayName.HeaderText");
                gvCurrencyGrid.Columns[5].HeaderText = StringManager.GetString("Admin.CurrencyGrid.colDisplayName.HeaderText");
                gvCurrencyGrid.Columns[6].HeaderText = StringManager.GetString("Admin.CurrencyGrid.colActive.HeaderText");
                gvCurrencyGrid.EmptyDataText = StringManager.GetString("Admin.CurrencyGrid.EmptyDataText");
            }
            base.OnInit(e);
        }

        protected void GvCurrencyGrid_OnRowDataBound(object sender, GridViewRowEventArgs e)
        {
            GridViewRow row = e.Row;

            if(row.RowType == DataControlRowType.DataRow)
            {
                ViewDataContainer item = e.Row.DataItem as ViewDataContainer;

                if(item != null)
                {
                    Literal lblCurrencyID = row.FindControl("lblCurrencyID") as Literal;
                    HiddenField hfPriceFormat = row.FindControl("hfPriceFormat") as HiddenField;
                    HyperLink lnkDetails = row.FindControl("lnkDetails") as HyperLink;
                    TextBox txtName = row.FindControl("txtName") as TextBox;
                    TextBox txtDisplayName = row.FindControl("txtDisplayName") as TextBox;
                    CheckBox cbIsActive = row.FindControl("cbIsActive") as CheckBox;
                    Literal lblCreatedOn = row.FindControl("lblCreatedOn") as Literal;

                    lblCurrencyID.Text = item["CurrencyID"].ToString();
                    lnkDetails.NavigateUrl = UrlHelper.FormatUrl("admin", "localization/currencies/{0}.aspx", item["CurrencyID"]);
                    lnkDetails.ToolTip = StringManager.GetString("Admin.CurrencyGrid.lnkDetails.ToolTip");
                    txtName.Text = (string)item["Name"];
                    txtDisplayName.Text = (string)item["DisplayName"];
                    hfPriceFormat.Value = (string)item["PriceFormat"];
                    cbIsActive.Checked = (bool)item["IsActive"];
                    lblCreatedOn.Text = UserContext.Current.DateTimeToString((DateTime)item["CreatedOn"]);
                }
            }
        }

        public void OnCommand(object sender, CommandEventArgs e)
        {
            switch(e.CommandName)
            {
                case "Update":
                    {
                        try
                        {
                            List<ViewDataContainer> itemCollection = new List<ViewDataContainer>();

                            foreach(GridViewRow row in gvCurrencyGrid.Rows)
                            {
                                CheckBox cbSelected = row.FindControl("cbSelected") as CheckBox;

                                if(cbSelected.Checked)
                                {
                                    Literal lblCurrencyID = row.FindControl("lblCurrencyID") as Literal;
                                    HiddenField hfPriceFormat = row.FindControl("hfPriceFormat") as HiddenField;
                                    TextBox txtName = row.FindControl("txtName") as TextBox;
                                    TextBox txtDisplayName = row.FindControl("txtDisplayName") as TextBox;
                                    CheckBox cbIsActive = row.FindControl("cbIsActive") as CheckBox;

                                    ViewDataContainer item = new ViewDataContainer();

                                    item["CurrencyID"] = Int32.Parse(lblCurrencyID.Text);
                                    item["Name"] = StringHelper.StripTags(txtName.Text);
                                    item["DisplayName"] = StringHelper.StripTags(txtDisplayName.Text);
                                    item["PriceFormat"] = hfPriceFormat.Value;
                                    item["IsActive"] = cbIsActive.Checked;

                                    itemCollection.Add(item);
                                }
                            }

                            DataContainer["CurrencyCollection"] = itemCollection;

                            Presenter.UpdateCollection();
                        }
                        catch(Exception ex)
                        {
                            Page.ShowMessage(ex.Message);
                        }
                    }
                    break;
                case "Delete":
                    {
                        try
                        {
                            List<ViewDataContainer> itemCollection = new List<ViewDataContainer>();

                            foreach(GridViewRow row in gvCurrencyGrid.Rows)
                            {
                                CheckBox cbSelected = row.FindControl("cbSelected") as CheckBox;

                                if(cbSelected.Checked)
                                {
                                    Literal lblCurrencyID = row.FindControl("lblCurrencyID") as Literal;

                                    ViewDataContainer item = new ViewDataContainer();

                                    item["CurrencyID"] = Int32.Parse(lblCurrencyID.Text);

                                    itemCollection.Add(item);
                                }
                            }

                            DataContainer["CurrencyCollection"] = itemCollection;

                            Presenter.DeleteCollection();
                        }
                        catch(Exception ex)
                        {
                            Page.ShowMessage(ex.Message);
                        }
                    }
                    break;
            }
        }
        #endregion
    }
}