DataGrid Constructor ()
.NET Framework (current version)
Initializes a new instance of the DataGrid class.
Assembly: System.Web (in System.Web.dll)
The following code example demonstrates how to create and initialize a new instance of the DataGrid class.
<%@ Page Language="C#" AutoEventWireup="True" %> <%@ Import Namespace="System.Data" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <script runat="server"> ICollection CreateDataSource() { // Create sample data for the DataGrid control. DataTable dt = new DataTable(); DataRow dr; // Define the columns of the table. dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32))); dt.Columns.Add(new DataColumn("StringValue", typeof(string))); dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double))); // Populate the table with sample values. for (int i = 0; i < 9; i++) { dr = dt.NewRow(); dr[0] = i; dr[1] = "Item " + i.ToString(); dr[2] = 1.23 * (i + 1); dt.Rows.Add(dr); } DataView dv = new DataView(dt); return dv; } void Page_Load(Object sender, EventArgs e) { // Create a DataGrid control. DataGrid ItemsGrid = new DataGrid(); // Set the properties of the DataGrid. ItemsGrid.ID = "ItemsGrid"; ItemsGrid.BorderColor = System.Drawing.Color.Black; ItemsGrid.CellPadding = 3; ItemsGrid.AutoGenerateColumns = false; // Set the styles for the DataGrid. ItemsGrid.HeaderStyle.BackColor = System.Drawing.Color.FromArgb(0x0000aaaa); // Create the columns for the DataGrid control. The DataGrid // columns are dynamically generated. Therefore, the columns // must be re-created each time the page is refreshed. // Create and add the columns to the collection. ItemsGrid.Columns.Add(CreateBoundColumn("IntegerValue", "Item")); ItemsGrid.Columns.Add( CreateBoundColumn("StringValue", "Description")); ItemsGrid.Columns.Add( CreateBoundColumn("CurrencyValue", "Price", "{0:c}", HorizontalAlign.Right)); ItemsGrid.Columns.Add( CreateLinkColumn("http://www.microsoft.com", "_self", "Microsoft", "Related link")); // Specify the data source and bind it to the control. ItemsGrid.DataSource = CreateDataSource(); ItemsGrid.DataBind(); // Add the DataGrid control to the Controls collection of // the PlaceHolder control. Place.Controls.Add(ItemsGrid); } BoundColumn CreateBoundColumn(String DataFieldValue, String HeaderTextValue) { // This version of the CreateBoundColumn method sets only the // DataField and HeaderText properties. // Create a BoundColumn. BoundColumn column = new BoundColumn(); // Set the properties of the BoundColumn. column.DataField = DataFieldValue; column.HeaderText = HeaderTextValue; return column; } BoundColumn CreateBoundColumn(String DataFieldValue, String HeaderTextValue, String FormatValue, HorizontalAlign AlignValue) { // This version of CreateBoundColumn method sets the DataField, // HeaderText, and DataFormatString properties. It also sets the // HorizontalAlign property of the ItemStyle property of the column. // Create a BoundColumn using the overloaded CreateBoundColumn method. BoundColumn column = CreateBoundColumn(DataFieldValue, HeaderTextValue); // Set the properties of the BoundColumn. column.DataFormatString = FormatValue; column.ItemStyle.HorizontalAlign = AlignValue; return column; } HyperLinkColumn CreateLinkColumn(String NavUrlValue, String TargetValue, String TextValue, String HeaderTextValue) { // Create a BoundColumn. HyperLinkColumn column = new HyperLinkColumn(); // Set the properties of the ButtonColumn. column.NavigateUrl = NavUrlValue; column.Target = TargetValue; column.Text = TextValue; column.HeaderText = HeaderTextValue; return column; } </script> <head runat="server"> <title>DataGrid Constructor Example</title> </head> <body> <form id="form1" runat="server"> <h3>DataGrid Constructor Example</h3> <b>Product List</b> <asp:PlaceHolder id="Place" runat="server"/> </form> </body> </html>
.NET Framework
Available since 1.1
Available since 1.1
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