asp.net - If Container.DataItem.BooleanValue Then

Question

在 VB.NET 中工作，在中继器中。如果数据项的字段设置为 true，我只想显示部分转发器。

我正在努力写一行来实现这一点，但我正在尝试这样做：

<% If '<%# Container.DataItem.IsLive%>' Then %>
   <asp:PlaceHolder ...
<% End If%>

任何帮助表示赞赏

Answer 1

<asp:PlaceHolder runat="server" Visible='Eval("IsLive")'>
...
</asp:PlaceHolder>

Answer 2

您可以在 repeater1_ItemDataBound 事件中做到这一点：

Private Sub repeater1_ItemDataBound(Sender As [Object], e As RepeaterItemEventArgs)
       ' This event is raised for the header, the footer, separators, and items.
       ' Execute the following logic for Items and Alternating Items.
       If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then
              Dim PlaceHolder1 As PlaceHolder = DirectCast(e.Item.FindControl("PlaceHolder1"), PlaceHolder)
        If (e.Item.DataItem).IsLive Then
          PlaceHolder1.Visible = False
        End If
       End If
End Sub