您的位置:首页 > 其它

GridView.RowCommand 事件中获取当前行的信息

2010-02-25 10:54 519 查看


源代码:

<%@ Page Language="C#" AutoEventWireup="true"%>

<%@ Import Namespace="System.Data" %>

<script runat="server">

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

this.BindGridView();

}

}

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);

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);

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);

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 BindGridView()

{

DataTable dataTable = CreateSampleDataSource();

this.GridView1.DataSource = dataTable;

this.GridView1.DataBind();

}

static DataTable CreateSampleDataSource()

{

DataTable dataTable = new DataTable("Products");

dataTable.Columns.Add("ProductID", typeof(int));

dataTable.Columns.Add("ProductName", typeof(string));

dataTable.Columns.Add("CategoryID", typeof(int));

dataTable.Rows.Add(new object[] { 1, "电脑", 1 });

dataTable.Rows.Add(new object[] { 2, "硬盘", 1 });

dataTable.Rows.Add(new object[] { 3, "内存", 1 });

dataTable.Rows.Add(new object[] { 4, "CPU", 1 });

return dataTable;

}

</script>

<!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">

<head runat="server">

<title></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>

本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/sabty/archive/2009/11/16/4816160.aspx
内容来自用户分享和网络整理,不保证内容的准确性,如有侵权内容,可联系管理员处理 点击这里给我发消息
标签: