我有一个带有项目模板的中继器控件,如下所示:
<ItemTemplate>
<table width="70%">
<tr id="rowSIC" runat="server">
<td width="10%">
<asp:Label ID="lblsSICCode" runat="server" Text='<%# Eval("SICCode") %>'></asp:Label>
</td>
<td width="70%">
<asp:Label ID="Label2" runat="server" Text='<%# Eval("IndustryName") %>'></asp:Label>
</td>
<td width="10%">
<asp:LinkButton ID="lnkSelect" runat="server" CommandArgument='<%# Eval("SICCode") %>'
CommandName="MyUpdate">Select</asp:LinkButton>
</td>
<td width="10%">
<asp:Label ID="Label1" runat="server"></asp:Label>
</td>
</tr>
</table>
</ItemTemplate>
和 itemCommand 事件,我正在更改转发器行颜色并将其 id 保存在 viewstate 中,如下所示:
Protected Sub Repeater1_ItemCommand(source As Object, e As System.Web.UI.WebControls.RepeaterCommandEventArgs) Handles Repeater1.ItemCommand
If e.CommandName.Equals("MyUpdate") Then
Dim MyLabel As Label = TryCast(e.Item.FindControl("lblsSICCode"), Label)
Dim Label1 As Label = TryCast(e.Item.FindControl("Label1"), Label)
Dim rowSIC As HtmlTableRow = TryCast(e.Item.FindControl("rowSIC"), HtmlTableRow)
If MyLabel IsNot Nothing Then
' Label1.Text = MyLabel.Text
rowSIC.BgColor = "#FFDAB9"
ViewState.Add("selectedItem", MyLabel.Text)
End If
End If
End Sub
我在此页面上有一个树视图,其中每个节点都有 Id 和值。在选定节点更改事件上,我想更改中继器选定节点的文本。我正在编写这样的代码:
Protected Sub TreeView1_SelectedNodeChanged(sender As Object, e As System.EventArgs) 处理 TreeView1.SelectedNodeChanged
Dim EmployeeRepeater As Repeater = CType(Me.Form.Controls(1).FindControl("Repeater1"), Repeater)
Dim EmployeeRepeaterItem As RepeaterItem
Dim EmployeeName As Label
For Each EmployeeRepeaterItem In Repeater1.Items
Dim MyLabel As Label = TryCast(EmployeeRepeaterItem.FindControl("lblsSICCode"), Label)
EmployeeName = CType(EmployeeRepeaterItem.FindControl("Label1"), Label)
If ViewState("selectedItem") = TreeView1.SelectedValue Then
EmployeeName.Text = TreeView1.SelectedNode.Text
End If
Next
End Sub
但它不是 chagging MyLabel 文本。如何解决?
树视图和转发器都填充在 !Page.Ispostback 事件中
问候, 阿西夫·哈米德