asp.net GridView中的事件触发
来源：互联网 发布：ge矩阵法 编辑：程序博客网 时间：2024/04/29 13:58
<%@ Page Language="C#" %><%@ Import Namespace="System.Data" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server"> protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { LoadProductData(); } } protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) { int rowIndex = -1; GridViewRow row = null; switch (e.CommandName) { case "Command1": // 模板列 // 对于模板列内的按钮，我们需要显示绑定行索引到按钮的 CommandArgument 属性 // 以获取触发事件的行信息 rowIndex = Convert.ToInt32(e.CommandArgument); row = GridView1.Rows[rowIndex]; DisplayInfo(row, e.CommandName); // your codes // ... break; case "Command2": // 模板列 // 同样处于模板列中，但不采用 Command1 方式，而是通过 NamingContrainer 属性 // 直接获取当前的 GridViewRow Control cmdControl = e.CommandSource as Control; // 表示触发事件的 IButtonControl，保持统一性并便于后续操作，我们这里直接转化为控件基类 Control row = cmdControl.NamingContainer as GridViewRow; DisplayInfo(row, e.CommandName); // your codes // ... break; case "Command3": // 绑定列 // 对于 ButtonField 列，数据源控件内部自动以适当的项索引值填充 CommandArgument 属性。 // 而无需我们显示绑定其 CommandArgument 属性 // 注意，我们这里无法采用 Command2 的方式，对于 BUttonField 触发的事件， // GridViewCommandEventArgs.CommandSource 表示的包含此按钮的 GridView rowIndex = Convert.ToInt32(e.CommandArgument); row = GridView1.Rows[rowIndex]; DisplayInfo(row, e.CommandName); // your codes // ... break; } } void DisplayInfo(GridViewRow row, string cmdName) { TextBox txtNewProductName = row.FindControl("txtNewProductName") as TextBox; Response.Write(String.Format("<pre>RowIndex: {0}/nOldProductName: {1}/nNewProductName: {2}/nFiredBy: {3}</pre>", row.RowIndex, row.Cells[0].Text, txtNewProductName.Text, cmdName)); } void LoadProductData() { DataTable dt = CreateProductTable(); GridView1.DataSource = dt; GridView1.DataBind(); } #region sample data static DataTable CreateProductTable() { DataTable tbl = new DataTable("Products"); tbl.Columns.Add("ProductID", typeof(int)); tbl.Columns.Add("ProductName", typeof(string)); tbl.Columns.Add("CategoryID", typeof(int)); DataRow row = tbl.NewRow(); row[0] = 1; row[1] = "Chai"; row[2] = 1; tbl.Rows.Add(row); row = tbl.NewRow(); row[0] = 2; row[1] = "Chang"; row[2] = 1; tbl.Rows.Add(row); row = tbl.NewRow(); row[0] = 3; row[1] = "Aniseed Syrup"; row[2] = 2; tbl.Rows.Add(row); row = tbl.NewRow(); row[0] = 4; row[1] = "Chef Anton's Cajun Seasoning"; row[2] = 2; tbl.Rows.Add(row); row = tbl.NewRow(); row[0] = 5; row[1] = "Chef Anton's Gumbo Mix"; row[2] = 2; tbl.Rows.Add(row); row = tbl.NewRow(); row[0] = 47; row[1] = "Zaanse koeken"; row[2] = 3; tbl.Rows.Add(row); row = tbl.NewRow(); row[0] = 48; row[1] = "Chocolade"; row[2] = 3; tbl.Rows.Add(row); row = tbl.NewRow(); row[0] = 49; row[1] = "Maxilaku"; row[2] = 3; tbl.Rows.Add(row); return tbl; } #endregion </script><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>Untitled Page</title></head><body> <form id="form1" runat="server"> <div> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" OnRowCommand="GridView1_RowCommand"> <Columns> <asp:BoundField DataField="ProductName" HeaderText="OldProductName" /> <asp:TemplateField HeaderText="NewProductName"> <ItemTemplate> <asp:TextBox ID="txtNewProductName" runat="server" Text='<%# Eval("ProductName") %>'></asp:TextBox> </ItemTemplate> </asp:TemplateField> <asp:TemplateField> <ItemTemplate> <asp:Button ID="Button1" CommandName="Command1" CommandArgument='<%# Container.DataItemIndex %>' runat="server" Text="Command1" /> <asp:Button ID="Button2" CommandName="Command2" runat="server" Text="Command2" /> </ItemTemplate> </asp:TemplateField> <asp:ButtonField CommandName="Command3" Text="Command3" /> </Columns> </asp:GridView> </div> </form></body></html>
