DataGrid控件的ButtonColumn的问题

寒沙胜雪 2011-09-16 06:37:29

我在DataGrid里面自定义了一个列，为ButtonColumn的列，命令名为 Update，按钮类型为 LinkButton。
然后在对应的.cs文件里面写了方法：



        private void myDataGrid_ItemCommand(object sender, DataGridCommandEventArgs e)

        {

            if (e.CommandName=="Update")

            {

                DBHelper.alert(this, "test!");//此处弹出test!。

            }

        }

但是这句弹出却没有执行，我在if语句上面设置了断点，调试执行，点击那个按钮，也没有执行这个方法。求教各位高人，到底要写什么方法啊？

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寒沙胜雪 2011-09-16

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我知道原因了，我可以的调用方法了，但是如何才能获取文本框中的内容呢？

寒沙胜雪 2011-09-16

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[Quote=引用 1 楼 icebamboo123 的回复:]
贴出html看看
[/Quote]
[Quote=引用 2 楼 supper168 的回复:]
e.CommandName 输入值与“Update”不符，先输出的看看。
[/Quote]



<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TourMess.aspx.cs" Inherits="Tour.TourCom.TourMess"  Theme="主题1"%>



<!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>无标题页</title>

</head>

<body>

    <form id="form1" runat="server">

        <asp:DataGrid runat= "server" id="myDataGrid" AutoGenerateColumns="False" 

            AllowPaging="True" PageSize="4" Height="150px" 

            Width="676px" onpageindexchanged="myDataGrid_PageIndexChanged">

            <PagerStyle Mode="NumericPages" />

            <Columns>

                <asp:BoundColumn HeaderText="客户留言" DataField="MessCont">

                    <HeaderStyle Width="290px" Height="50px"/>

                </asp:BoundColumn>

                <asp:TemplateColumn HeaderText="回复内容">

                    <ItemTemplate>

                        <asp:TextBox ID="txtMessAns" runat="server" Height="49px" Width="289px" 

                            TextMode="MultiLine"></asp:TextBox>

                          

                    </ItemTemplate>

                    <HeaderStyle Width="290px" Height="50px"/>

                </asp:TemplateColumn>

                <asp:ButtonColumn CommandName="Update" HeaderText="确定" Text="确定">

                </asp:ButtonColumn>

            </Columns>

        </asp:DataGrid>

    </form>

</body>

</html>

cs文件代码如下:



using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;



namespace Tour.TourCom

{

    public partial class TourMess : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            //if (Session["TourCom"] == null)

            //{

            //    Response.Write("<script language='javascript'> alert('您未登录!');location.href= '../TourComLogin.aspx'</script>");

            //}

            this.DataToBind();

        }

        private void DataToBind(){

            //string strTourCom = Session["TourCom"].ToString();

            string strTourCom = "wulianshan";

            //根据旅游公司名得到旅游公司ID

            int iTourComID = 0;

            string strGetTourComID = @"select TourComID from TourCom where TourComUID='" + strTourCom + "'";

            Boolean blIs;

            DataRow dr = DBHelper.ExecuteReader(strGetTourComID, CommandType.Text, out blIs, null);

            iTourComID = Convert.ToInt32(dr["TourComID"]);

            //根据旅游公司ID得到其发布的景区ID

            int iScenID = 0;

            string strGetScenID = @"select ScenID from Scenery where TourComID='" + iTourComID + "'";

            Boolean blIsSuccess;

            DataRow drScenID = DBHelper.ExecuteReader(strGetScenID, CommandType.Text, out blIsSuccess, null);

            iScenID = Convert.ToInt32(drScenID["ScenID"]);

            //根据景区ID得到留言内容

            string strGetMess = @"select MessCont from Mess where MessIs='" + false + "' and ScenID='" + iScenID + "'";

            DataSet ds = DBHelper.GetDataSet(strGetMess);

            this.myDataGrid.DataKeyField = "MessCont";

            this.myDataGrid.DataSource=ds;

            this.myDataGrid.DataBind();



        }



        protected void myDataGrid_PageIndexChanged(object source, DataGridPageChangedEventArgs e)

        {

            this.myDataGrid.CurrentPageIndex = e.NewPageIndex;

            this.DataToBind();

        }

        private void myDataGrid_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)

        {

            //获取待更新的留言ID

            string strID = this.myDataGrid.DataKeys[e.Item.ItemIndex].ToString();

            //获取对用户留言的回复内容

            string strMessAns = ((TextBox)(e.Item.Cells[2].Controls[0])).Text;

            string strUpdate = @"update Mess set MessAns='" + strMessAns + "',MessIs='" + true + "' where MessID='" + strID + "'";

            Boolean blIs = DBHelper.ExecuteNonQuery(strUpdate, CommandType.Text, null);

            if (blIs==true)

            {

                //成功

                this.DataToBind();

            } 

            else

            {

                //失败

                throw new Exception("更新失败!");

            }

        }

        protected void myDataGrid_RowCommand(object sender,DataGridCommandEventArgs e)

        {

            if (e.CommandName=="Update")

            {

                DBHelper.alert(this, "test!");

            }

        }

        private void myDataGrid_ItemCommand(object sender, DataGridCommandEventArgs e)

        {

            if (e.CommandName=="Update")

            {

                DBHelper.alert(this, "test!");

            }

        }

    }

}