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<html><head><link rel=stylesheet href=style.css></head><body><div class=SourcePanel style='font-size:12'><pre style='background-color:white'>
<font color= "blue">using</font> System;
<font color= "blue">using</font> System.Web.UI.WebControls;
<font color= "blue">using</font> ASPNET.StarterKit.Reports.Components;
<font color= "blue"></font>
<font color= "blue">namespace</font> ASPNET.StarterKit.Reports
<font color= "blue"></font>{
<font color= "green"> //*********************************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // Tabular.aspx</font>
<font color= "green"> //</font>
<font color= "green"> // The Tabular.aspx page shows a basic technique for grouping related data </font>
<font color= "green"> // (in this case, grouping products by category). This is accomplished by nesting a </font>
<font color= "green"> // DataGrid control inside a DataList control. Additionally, this report demonstrates </font>
<font color= "green"> // how easy it is to implement interactive sorting in the report using ASP.NET.</font>
<font color= "green"> //</font>
<font color= "green"> //*********************************************************************</font>
<font color= "blue"></font>
<font color= "blue"> public class</font> Tabular : System.Web.UI.Page
<font color= "blue"> </font>{
<font color= "blue"> protected </font>System.Web.UI.WebControls.DataList CategoriesList;
<font color= "blue"> protected </font>System.Web.UI.WebControls.HyperLink PrintButton;
<font color= "blue"> protected </font>string _styleSheet;
<font color= "blue"> </font>
<font color= "blue"> private void</font> Page_Load(object sender, System.EventArgs e)
<font color= "blue"> </font>{
<font color= "blue"></font><font color= "blue"> if </font>(!IsPostBack)<font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "green"> // default sort will be by product name</font>
<font color= "blue"></font><font color= "blue"> if </font>(SortField == "") <font color= "blue"></font>
<font color= "blue"> </font>SortField = "ProductName";
<font color= "blue"></font>
<font color= "blue"> </font>BindList();
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "green"> // switches the style sheet based on printer friendly view or not</font>
<font color= "blue"></font><font color= "blue"> if </font>(Request.QueryString["Print"]=="true")<font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> </font>_styleSheet = "stylesPrint.css";
<font color= "blue"> </font>PrintButton.Visible = true;
<font color= "blue"> </font>}
<font color= "blue"></font><font color= "blue"> else </font><font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> </font>_styleSheet = "styles.css";
<font color= "blue"> </font>}
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "blue"> </font>#region Web Form Designer generated code
<font color= "blue"> </font>override protected void OnInit(EventArgs e)
<font color= "blue"> </font>{
<font color= "green"> //</font>
<font color= "green"> // CODEGEN: This call is required by the ASP.NET Web Form Designer.</font>
<font color= "green"> //</font>
<font color= "blue"> </font>InitializeComponent();
<font color= "blue"> </font>base.OnInit(e);
<font color= "blue"> </font>}
<font color= "blue"> </font>
<font color= "green"> /// <summary></font>
<font color= "green"> /// Required method for Designer support - do not modify</font>
<font color= "green"> /// the contents of this method with the code editor.</font>
<font color= "green"> /// </summary></font>
<font color= "blue"> private void</font> InitializeComponent()
<font color= "blue"> </font>{
<font color= "blue"> </font>this.Load += new System.EventHandler(this.Page_Load);
<font color= "blue"></font>
<font color= "blue"> </font>}
<font color= "blue"> </font>#endregion
<font color= "blue"></font>
<font color= "green"> //*********************************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // The BindList method retrieves the list of categories</font>
<font color= "green"> // and then data binds them to the ProductsByCategoryList</font>
<font color= "green"> //</font>
<font color= "green"> //*********************************************************************</font>
<font color= "blue"></font>
<font color= "blue"> private void</font> BindList()
<font color= "blue"> </font>{
<font color= "blue"> </font>CategoriesList.DataSource = TabularReport.GetCategories();
<font color= "blue"> </font>CategoriesList.DataBind();
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "green"> //*********************************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // The GetDetails method calls the BLL to retrieve product for a category given</font>
<font color= "green"> // a category id.</font>
<font color= "green"> //</font>
<font color= "green"> //*********************************************************************</font>
<font color= "blue"></font>
<font color= "blue"> protected </font>TabularReportCollection GetDetails(int categoryID)
<font color= "blue"> </font>{
<font color= "blue"> </font>TabularReportCollection detailList = TabularReport.GetProducts(categoryID);
<font color= "blue"></font>
<font color= "green"> // do the sorting if there are data returned</font>
<font color= "blue"></font><font color= "blue"> if </font>(detailList.Count > 0) <font color= "blue"></font>
<font color= "blue"> </font>SortGridData(detailList, SortField, SortAscending);
<font color= "blue"></font>
<font color= "blue"> return</font> detailList;
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "green"> //*******************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // SortGridData methods sorts the datagrid based on which</font>
<font color= "green"> // sort field is being selected. Also does reverse sorting based on the boolean.</font>
<font color= "green"> //</font>
<font color= "green"> //*******************************************************</font>
<font color= "blue"></font>
<font color= "blue"> private void</font> SortGridData(TabularReportCollection list, string sortField, bool asc)
<font color= "blue"> </font>{
<font color= "blue"> </font>TabularReportCollection.TabularReportFields sortCol = TabularReportCollection.TabularReportFields.InitValue;
<font color= "blue"></font>
<font color= "blue"> </font>switch(sortField)
<font color= "blue"> </font>{
<font color= "blue"> case</font> "ProductName":
<font color= "blue"> </font>sortCol = TabularReportCollection.TabularReportFields.ProductName;
<font color= "blue"> </font>break;
<font color= "blue"> case</font> "UnitPrice":
<font color= "blue"> </font>sortCol = TabularReportCollection.TabularReportFields.UnitPrice;
<font color= "blue"> </font>break;
<font color= "blue"> case</font> "UnitsInStock":
<font color= "blue"> </font>sortCol = TabularReportCollection.TabularReportFields.UnitsInStock;
<font color= "blue"> </font>break;
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "blue"> </font>list.Sort(sortCol, asc);
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "green"> //*******************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // CalculateExtendedPrice event handler is tied to the OnItemDataBound of the Datagrid.</font>
<font color= "green"> // It retrieves the unit price and multiplies that to the units in stock to calculate the extended price of a product.</font>
<font color= "green"> // The extended price is displayed as the right most column.</font>
<font color= "green"> //</font>
<font color= "green"> //*******************************************************</font>
<font color= "blue"></font>
<font color= "blue"> protected void</font> CalculateExtendedPrice(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
<font color= "blue"> </font>{
<font color= "blue"></font><font color= "blue"> if </font>(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)<font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> </font>double unitsInStock = Convert.ToDouble(e.Item.Cells[1].Text);
<font color= "blue"> </font>double unitPrice = Convert.ToDouble(e.Item.Cells[4].Text);
<font color= "blue"> </font>e.Item.Cells[5].Text = string.Format("{0:c}", unitPrice * unitsInStock);
<font color= "blue"></font>
<font color= "green"> // format unit price column as currency</font>
<font color= "blue"> </font>e.Item.Cells[4].Text = string.Format("{0:c}", unitPrice);
<font color= "blue"></font>
<font color= "green"> // if there are no units in stock, color the line item as red by changing the style class</font>
<font color= "blue"></font><font color= "blue"> if </font>(unitsInStock == 0)<font color= "blue"></font>
<font color= "blue"> </font>e.Item.CssClass = "OutOfStock";
<font color= "blue"> </font>}
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "green"> //*********************************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // The SortGrid event handler changes the sortfield for the Projects grid </font>
<font color= "green"> // and re-binds it.</font>
<font color= "green"> //</font>
<font color= "green"> //*********************************************************************</font>
<font color= "blue"></font>
<font color= "blue"> protected void</font> SortGrid(Object sender, DataGridSortCommandEventArgs e)
<font color= "blue"> </font>{
<font color= "green"> // change sort field</font>
<font color= "blue"> </font>SortField = (string)e.SortExpression;
<font color= "blue"></font>
<font color= "green"> // re-bind to display new sorting</font>
<font color= "blue"> </font>BindList();
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "blue"> </font>string SortField
<font color= "blue"> </font>{
<font color= "blue"> get</font>
<font color= "blue"> </font>{
<font color= "blue"> </font>object o = ViewState["SortField"];
<font color= "blue"></font><font color= "blue"> if </font>(o == null) <font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> return</font> String.Empty;
<font color= "blue"> </font>}
<font color= "blue"> return</font> (string)o;
<font color= "blue"> </font>}
<font color= "blue"> set</font>
<font color= "blue"> </font>{
<font color= "blue"></font><font color= "blue"> if </font>(value == SortField) <font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "green"> // same as current sort file, toggle sort direction</font>
<font color= "blue"> </font>SortAscending = !SortAscending;
<font color= "blue"> </font>}
<font color= "blue"> </font>ViewState["SortField"] = value;
<font color= "blue"> </font>}
<font color= "blue"> </font>}
<font color= "blue"> </font>
<font color= "green"> //*********************************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // SortAscending property is tracked in ViewState</font>
<font color= "green"> //</font>
<font color= "green"> //*********************************************************************</font>
<font color= "blue"></font>
<font color= "blue"> </font>bool SortAscending
<font color= "blue"> </font>{
<font color= "blue"> get</font>
<font color= "blue"> </font>{
<font color= "blue"> </font>object o = ViewState["SortAscending"];
<font color= "blue"></font>
<font color= "blue"></font><font color= "blue"> if </font>(o == null) <font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> return</font> true;
<font color= "blue"> </font>}
<font color= "blue"> return</font> (bool)o;
<font color= "blue"> </font>}
<font color= "blue"> set</font>
<font color= "blue"> </font>{
<font color= "blue"> </font>ViewState["SortAscending"] = value;
<font color= "blue"> </font>}
<font color= "blue"> </font>}
<font color= "blue"> </font>}
<font color= "blue"></font>}
</pre>
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