下拉事件问题 [英] Dropdown event issue

问题描述

我正在尝试实现下拉列表的OnSelectedIndexChanged事件，但我无法在属性窗口中看到下拉事件，所以我添加了源代码中的事件为OnSelectedIndexChanged =ddlAdSearch_SelectedIndexChanged，并在后面的代码中添加相应的代码如下。



代码背后：



Private Sub ddlAdSearch_SelectedIndexChanged（ByVal sender As Object，ByVal e As System.EventArgs）处理ddlAdSearch.SelectedIndexChanged



- -----

----------

结束次级





但是当我运行应用程序时，我得到如下编译时错误



BC30456：'ddlAdSearch_SelectedIndexChanged'不是'ASP的成员.Menu_aspx'。



任何人都知道为什么我无法在属性窗口中看到该下拉列表的事件以及此编译时间背后的原因错误r。



谢谢

Hi ,

I am trying to implement OnSelectedIndexChanged event of a dropdown list but I am not able to see the dropdown events in the property window so I added that event in the source as OnSelectedIndexChanged="ddlAdSearch_SelectedIndexChanged" and added corresponding code in the code behind as below.

Code behind:

Private Sub ddlAdSearch_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlAdSearch.SelectedIndexChanged

------
----------
End Sub


But while I am running the application I an getting compile time error like below

BC30456: 'ddlAdSearch_SelectedIndexChanged' is not a member of 'ASP.Menu_aspx'.

Anyone have any idea why I am not able to see the events of that dropdown in the property window and the reason behind this compile time error.

Thanks

推荐答案

我在后面的代码中添加了Protected而不是Private，然后它工作了很好。





受保护的子ddlAdSearch_SelectedIndexChanged（ByVal sender As Object，ByVal e As System.EventArgs）处理ddlAdSearch.SelectedIndexChanged



谢谢

I added Protected instead of Private in the code behind and then its worked fine.


Protected Sub ddlAdSearch_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlAdSearch.SelectedIndexChanged

Thanks

这篇关于下拉事件问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！