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如何在后台代码中的Repeater控件中获取对标签的引用

[英]How to get a reference to a label in a Repeater control in code-behind

<asp:repeater id="rpt" run="server">
<ItemTemplate>
<asp:LinkButton id="Delete" runat="server" OnCommand="Delete_Command"></asp:linkButton>
<asp:label id="lblMessage" run="server">
</ItemTemplate>
</asp:repeater>

背后的代码:

protected void Delete_Command(object sender, CommandEventArgument e)
{

}

如何在Delete_Command中引用“ lblMessage”?

我建议稍微重组一下代码,这将使您可以使用FindControl轻松执行此类操作。 基本上,我的建议可以归结为处理Command事件,而不是链接按钮,而是转发器本身:

<asp:repeater id="rpt" run="server" OnItemCommand="rpt_ItemCommand">

然后,访问项目内容非常简单:

protected void rpt_ItemCommand(object sender, RepeaterCommandEventArgs e)
{
    Label label = e.Item.FindControl("lblMessage");
    LinkButton linkButton = e.Item.FindControl("Delete");
}

您可以尝试以下方法:

页面:

<asp:Repeater ID="rpt" runat="server" OnItemCommand="rpt_ItemCommand">
<ItemTemplate>
    <asp:LinkButton ID="Delete" runat="server" CommandName="Delete"></asp:LinkButton>
    <asp:Label ID="lblMessage" runat="server"/>
</ItemTemplate>

背后的代码:

protected void rpt_ItemCommand(object source, RepeaterCommandEventArgs e)
{
    if (e.CommandName == "Delete")
    {
        Label lblMessage = e.Item.FindControl("lblMessage") as Label;
    }
}

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