不能轉發的ItemTemplate

Question

內部訪問控制內部<% %>（代碼標籤）沒有這個作品的轉發器，但寫這裏面中繼器，它只是編譯錯誤

<asp:Repeater runat="server" ID="rep1"> 
    <ItemTemplate> 
     <li> 
      <o:TextBox runat="server" ID="txtLastName" /> 
<% 
//this doesn't works outside of the repeater but here it doesn't 
txtName.Text = txtLastName.ClientID; 
%>        
      <o:TextBox runat="server" ID="txtName" /> 
     </li> 
    </ItemTemplate> 
</asp:Repeater> 

Answer 1

您只能使用的DataBind語法的ItemTemplate <%# %>內。如果您想參考另一個控件，請使用NamingContainer。

<asp:Repeater runat="server" ID="rep1"> 
    <ItemTemplate> 
     <li> 
      <o:TextBox runat="server" ID="txtLastName" /> 
      <%# Container.FindControl("txtLastName").ClientID %>  
      <o:TextBox runat="server" ID="txtName" /> 
     </li> 
    </ItemTemplate> 
</asp:Repeater> 

否則，您總是可以掛鉤ItemDataBound來操縱服務器端的控件。

protected void repeater_ItemDataBound(object sender, RepeaterItemEventArgs e) 
{  
    if (e.Item.ItemType == ListItemType.Item 
       || e.Item.ItemType == ListItemType.AlternatingItem) 
    { 
     var txtLastName = e.Item.FindControl("txtLastName") as TextBox; 
     var txtName = e.Item.FindControl("txtName") as TextBox; 

     ... 
    } 
}