显示来自vbcode的消息框不起作用 [英] Display message box from vbcode not working

问题描述

我有以下代码，并且需要确认弹出框来显示何时存在某种特定条件.


这是代码:

I have the following code and need a confirm popup box to show when a certain condition exists.


Here is the code:

Protected Sub InvestigationStatusDDLIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) ' Root Cause
    Dim script As ClientScriptManager = Page.ClientScript
    If ddlImplementationStatus.SelectedValue = "Completed" And ddlInvestigationStatus.SelectedValue <> "Completed" Then
        If Session("seesionShow") = "yes" Then
            If Not script.IsClientScriptBlockRegistered(Me.[GetType](), "SubmitScript") Then
                script.RegisterOnSubmitStatement(Me.[GetType](), "SubmitScript", "return confirm(This will reset dates, Proceed?, NOTE all dates will be cleared!)")
            End If
        End If
    End If



End Sub

以上无效.我只能在页面加载事件中使它起作用，而不能从下拉列表中选择的索引更改事件中起作用.

The above doesn''t work. I can get it only to work from the page load event, but not from the dropdownlist selected index change event.

推荐答案

您是否尝试过在页面加载时注册脚本?

您上面发布的代码似乎正在检查状态更改中的脚本注册.

Have you tried registering the script while page loads?

The code which you have posted above looks like you are checking for the script registration inside the status change.

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