在ItemDataBound事件中添加按钮并使用按钮事件的问题

hypnoz 2009-07-24 09:31:56

    protected void GuestBookDL1_ItemDataBound(object sender, DataListItemEventArgs e)

    {



        Button ReplyB = (Button)e.Item.FindControl("ReplyB");

        

        if (ReplyB!=null)

        {



            ReplyB.Click += new EventHandler(ReplyB_Click);

        }     

    }



    void ReplyB_Click(object sender, EventArgs e)

    {

        throw new NotImplementedException();

    }

为什么点击出错 GuestBookDL1是一个DataList

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hypnoz 2009-07-25

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没人知道么

幻影时空 2009-07-25

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同意 gdjlc 的代码~

都已经回答正确了

木木 2009-07-25

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顶

hypnoz 2009-07-25

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没人知道么

YL_Show 2009-07-25

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学习

hypnoz 2009-07-24

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LS的。。。。别乱写

liyachi 2009-07-24

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protected void GuestBookDL1_ItemDataBound(object sender, DataListItemEventArgs e)
{

if( e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==ListItemType.AlternatingItem )
{
//你的代码
}
}

hypnoz 2009-07-24

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    protected void GuestBookDL1_ItemDataBound(object sender, DataListItemEventArgs e)

    {

        int ArtId = Convert.ToInt32(DataBinder.Eval(e.Item.DataItem, "ArtId"));

        DataList GuestBookDL2 = (DataList)e.Item.FindControl("GuestBookDL2");

        if (GuestBookDL2!=null)

        {

            GuestBookDL2.DataSource = Article.GetDataTableRepley(ArtId);

            GuestBookDL2.ItemCommand += new DataListCommandEventHandler(GuestBookDL2_ItemCommand);

            GuestBookDL2.DataBind();      

        }

        TextBox ReplyT = (TextBox)e.Item.FindControl("ReplyT");

        Button ReplyB = (Button)e.Item.FindControl("ReplyB");

        

        //if (ReplyB!=null)

        //{



        //    ReplyB.Click += new EventHandler(ReplyB_Click);

        //}     

    }



    void GuestBookDL2_ItemCommand(object source, DataListCommandEventArgs e)

    {

        //throw new NotImplementedException();

        if (e.CommandName=="ReplyI")

        {

            Response.Write("XXX");

        }

    }

hypnoz 2009-07-24

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CommandName 的原理和我的一样
我试过了如果是在itembound中调用一样会出错

gdjlc 2009-07-24

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DataList中按钮的事件可以这样用：

html 页面代码：
<asp:DataList ID="DL_Select" runat="server" RepeatColumns="4" ShowFooter="False"
ShowHeader="False" Width="100%" OnItemCommand="DL_Select_ItemCommand">
<ItemTemplate>
<asp:LinkButton ID="lbtnSelect" runat="server" Text='<%#Eval("name")%>' CommandName="SelectSchool"></asp:LinkButton>
</ItemTemplate>
</asp:DataList>

注意设置 DataList 模板中 LinkButton 的CommandName 属性为 "SelectSchool"
CS 文件代码
protected void DL_Select_ItemCommand(object source, DataListCommandEventArgs e)
{
//根据选择不同院系传递不同的值
if (e.CommandName == "SelectSchool")
{
//code
}
}