We help IT Professionals succeed at work.
Get Started

How to invoke a Master page button click from a child page

countrymeister
on
854 Views
Last Modified: 2012-06-21
I need to invoke a master page button click from a child page.
I tried tthe following which does not work. I see the alert pop up but the btnInvalidSession is not triggered

CHILD PAGE
If Session(":LoginID:") Is Nothing Then
                Dim btnInvalid As Button = CType(Page.Master.FindControl("btnInvalidSession"), Button)
                Dim val As String = btnInvalid.ClientID
                Dim msgDesc As String = "if (alert('Your session is no longer valid.\n\n Please login again.')) document.getElementById('" & val & "').click();"
                ScriptManager.RegisterClientScriptBlock(Me.Master, Me.Master.GetType(), "Invalid Session", msgDesc, True)
                Exit Sub        
               
            End If

MASTER PAGE - ASPX

<asp:Button ID="btnInvalidSession" runat="server" style="display:none;" OnClick="InvalidSessionButton_Click" />

MASTER PAGE - code behind

Protected Sub InvalidSessionButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnInvalidSession.Click
        Try
            Response.Redirect("login.aspx")
        Catch ex As Exception
            ex.ToString()
        End Try

    End Sub

CHILD PAGE
If Session(":LoginID:") Is Nothing Then
                Dim btnInvalid As Button = CType(Page.Master.FindControl("btnInvalidSession"), Button)
                Dim val As String = btnInvalid.ClientID
                Dim msgDesc As String = "if (alert('Your session is no longer valid.\n\n Please login again.')) document.getElementById('" & val & "').click();"
                ScriptManager.RegisterClientScriptBlock(Me.Master, Me.Master.GetType(), "Invalid Session", msgDesc, True)
                Exit Sub        
                
            End If

MASTER PAGE - ASPX

<asp:Button ID="btnInvalidSession" runat="server" style="display:none;" OnClick="InvalidSessionButton_Click" />

MASTER PAGE - code behind

Protected Sub InvalidSessionButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnInvalidSession.Click
        Try
            Response.Redirect("login.aspx")
        Catch ex As Exception
            ex.ToString()
        End Try

    End Sub

Open in new window

Comment
Watch Question
This problem has been solved!
Unlock 1 Answer and 1 Comment.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE