ascx控件下拉列表 [英] ascx control dropdownlist

问题描述

我们可以为.ascx中的dropdown控件提供autopostback=true吗?我已经提供了它，并且在页面加载时显示了页面，但没有显示控件.有人可以帮我吗?
谢谢...

can we give autopostback=true for a dropdowncontrol in .ascx. I''ve provided it and when the page loads it shows the page but not control. Can anyone help me out?
Thanks...

推荐答案

尝试访问此 [ ^ ]链接..
可能会对您有所帮助.

Hi,

try visiting this[^] link..
It may help you..

<div style="display: table-cell; vertical-align: top">
          <asp:UpdatePanel runat="server">
              <ContentTemplate>
                  <asp:DropDownList ID="ddlItemType" runat="server" DataTextField="ItemTypeName" DataValueField="ItemTypeId"

                      ValidationGroup="vgLibItem" OnSelectedIndexChanged="ddlItemType_SelectedIndexChanged">
                  </asp:DropDownList>
              </ContentTemplate>
              <Triggers>
                  <asp:AsyncPostBackTrigger ControlID="ddlItemType" EventName="SelectedIndexChanged" />
              </Triggers>
          </asp:UpdatePanel>
      </div>

检查此链接.

ASP .NET中的用户控件 [

Hi,
check this link.

User controls in ASP .NET[^]

I think you have not registered the user control with the page. If you have added, try by adding the below line in Control directive of the user control.

<![CDATA[<%@ OutputCache Duration="1" Location="None" %>]]>

希望它能起作用.

hope it works.

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