这是来自ascx的具有中继器的代码：
<asp:Repeater ID="ListOfEmails" runat="server" >
<HeaderTemplate><h3>A sub-header:</h3></HeaderTemplate>
<ItemTemplate>
[Some other stuff is here]
<asp:Button ID="removeEmail" runat="server" Text="X" ToolTip="remove" />
</ItemTemplate>
</asp:Repeater>
在中继器的数据绑定和事件的代码中：
Protected Sub ListOfEmails_ItemDataBound(ByVal sender As Object,ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles ListOfEmails.ItemDataBound
If (e.Item.ItemType = ListItemType.Item) Or (e.Item.ItemType = ListItemType.AlternatingItem) Then
Dim removeEmail As Button = CType(e.Item.FindControl("removeEmail"),Button)
removeEmail.CommandArgument = e.Item.ItemIndex.ToString()
AddHandler removeEmail.Click,AddressOf removeEmail_Click
AddHandler removeEmail.Command,AddressOf removeEmail_Command
End If
End Sub
Sub removeEmail_Click(ByVal sender As Object,ByVal e As System.EventArgs)
Response.Write("<h1>click</h1>")
End Sub
Sub removeEmail_Command(ByVal sender As Object,ByVal e As CommandEventArgs)
Response.Write("<h1>command</h1>")
End Sub
点击或命令都没有被调用,我做错了什么？
解决方法
嵌套在中继器内部的控件不会拦截事件.相反,您需要绑定到Repeater.ItemCommand事件.
ItemCommand包含RepeaterCommandEventArgs,它有两个重要的字段：
> CommandName
> CommandArgument
所以,一个微不足道的例子：
void rptr_ItemDataBound(object sender,RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.Item)
{
// Stuff to databind
Button myButton = (Button)e.Item.FindControl("myButton");
myButton.CommandName = "Add";
myButton.CommandArgument = "Some Identifying Argument";
}
}
void rptr_ItemCommand(object source,RepeaterCommandEventArgs e)
{
if (e.CommandName == "Add")
{
// Do your event
}
}
编辑：Markdown完全希望我的缩进,哦,我应该停止在这个文本框中编写代码.
