母版页事件应该更改内容页面

问题描述

我正在使用VB.Net

我在主页上有一个下拉列表，我需要在内容页面中激活其selectedindexchange事件，就好像它是对内容页面的控制一样。我想将此事件传递给内容页面。可能吗。

感谢所有

I am using VB.Net
I have a dropdown list on masterpage, I need to fire its selectedindexchange event in content pages as if its a control of content page. I want to pass this event to content page. Is it possible.
Thanks all

推荐答案

protected void Page_Load(object sender, EventArgs e)
{

    DropDownList drp = (DropDownList)Page.Master.FindControl("drpDownlist");
    drp.SelectedIndexChanged+=new EventHandler(drp_SelectedIndexChanged);
}

    void drp_SelectedIndexChanged(object sender, EventArgs e)
    {
            
    }

只需在您的内容页面中写下此代码即可完成。

just write this code in your content page and it is done.

Public Event SelectedIndexChange(ByVal sender As Object, ByVal e As System.EventArgs)
 
Protected Sub drpmember_SelectedIndexChanged(sender As Object, e As System.EventArgs) Handles drpmember.SelectedIndexChanged
 
        RaiseEvent SelectedIndexChange(Me, e)
End Sub

在内容页面的PreInit事件中

In PreInit event of content page

Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
Dim drp As DropDownList = DirectCast(Page.Master.FindControl("drpmember"), DropDownList)
AddHandler Master.SelectedIndexChange, AddressOf DelegateName
End Sub

In内容页面

In Content page

Protected Sub DelegateName(sender As Object, e As System.EventArgs)
''' Your Logic
End Sub

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