我正在尝试访问Repeater内部的控件。该控件位于<ItemTemplate>标记内。我使用FindControl方法,但它总是返回Null。
我做错了什么?
protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
(ControlTypeCast) e.Item.FindControl("myControl")).SomeProperty = "foo";
}
我猜测你可能正在错误的时机查找控件,你需要在ItemDataBound事件中查找。
以下是vb.net示例,但我相信你能理解。
Protected Sub rp_items_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles rp_items.ItemDataBound
If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then
Dim someLiteral As Literal = e.Item.FindControl("someliteral")
End If
End Sub
for (int i = 0; i <= repeater1.Items.Count - 1; i++)
{
Button delete = (Button)repeater1.Items[i].FindControl("btnDelete");
delete.Visible = true;
Button edit = (Button)repeater1.Items[i].FindControl("btnEdit");
edit.Visible = true;
}
Vb.net
For i As Integer = 0 To Repeater1.Items.Count - 1
Dim CmbTyp As DropDownList = DirectCast(Repeater1.Items(i).FindControl("DropDownList1"),DropDownList)
Dim SeatN As Label = DirectCast(Repeater1.Items(i).FindControl("label1"), Label)
styp = CmbTyp.SelectedItem.Text.Trim
sNo = SeatN.Text
Next
CType(e.Item.FindControl("myControl"), Literal).Text = "foo"
针对C#
[Literal]e.item.FindControl["myControl"].Text="foo";