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NandagopalReddy
20
Webtab Control twice postback
posted

Hi - I am using Infragistics webtab (v 10.2) to move between two aspx pages and here is code snippet.

 

 

 

 

 

 

 

 

 

 

<

 

 

ig:WebTab ID="WebTab1" runat="server" Height="200px" Width="300px" EnableValidation="true" EnableViewState="false">

 

 

 

<Tabs><ig:ContentTabItem runat="server" Text="Tab 1" ContentUrl="Page1.aspx">

 

 

 

</ig:ContentTabItem>

 

 

 

<ig:ContentTabItem runat="server" Text="Tab 2" ContentUrl="Page2.aspx">

 

 

 

</ig:ContentTabItem></Tabs>

<PostBackOptions EnableLoadOnDemandUrl="true" EnableLoadOnDemand="true" EnableReloadingUnselectedTab="true" EnableAjax ="true"/>

 

 

 

<AutoPostBackFlags SelectedIndexChanged ="On"/>

 

 

 

</ig:WebTab>

Here is the issue I am facing -

When I move from Tab1 (Page1.aspx) to Tab2 (Page2.aspx) Page1.aspx is loaded as expected, but Page2.aspx is loaded twice.

Am I missing any settings?

Appreciated quick response.

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  • 1708
    Offline posted

    IE calls the TabSelectedIndexChanged twice, so you need to do something like this:

    ( note that these loadcnt(s) are maintained in a persisted class and cleared on page_load)

        Private Sub tabRotation_SelectedIndexChanged(ByVal sender As Object, ByVal e As Infragistics.Web.UI.LayoutControls.TabSelectedIndexChangedEventArgs) Handles tabRotation.SelectedIndexChanged
            ' infragistics webtab event model wants to run the tabindex changed event always twice
            ' way too much over head involved, limit this to once only

            Select Case tabRotation.SelectedIndex

                'Case 0 is my default tab and is loaded by default

                Case 1 '    Description
                    If (MSS_Rotation.tabDescriptionloadcnt = 0 AndAlso Request.Browser.Browser <> "IE") OrElse
                        (MSS_Rotation.tabDescriptionloadcnt = 1 AndAlso Request.Browser.Browser = "IE") Then
                        LoadDescription()
                    End If
                    MSS_Rotation.tabDescriptionloadcnt += 1
                Case 2 '    Scheduling
                    If (MSS_Rotation.tabSchedulingloadcnt = 0 AndAlso Request.Browser.Browser <> "IE") OrElse
                        (MSS_Rotation.tabSchedulingloadcnt = 1 AndAlso Request.Browser.Browser = "IE") Then
                        LoadSchedulingTab()
                    End If
                    MSS_Rotation.tabSchedulingloadcnt += 1
                Case 3 '    Tags
                    If (MSS_Rotation.tabTagsloadcnt = 0 AndAlso Request.Browser.Browser <> "IE") OrElse
                        (MSS_Rotation.tabTagsloadcnt = 1 AndAlso Request.Browser.Browser = "IE") Then
                        LoadTagsTab()
                    End If
                    MSS_Rotation.tabTagsloadcnt += 1
                Case 4 '    Students
                    If (MSS_Rotation.tabStudentsloadcnt = 0 AndAlso Request.Browser.Browser <> "IE") OrElse
                        (MSS_Rotation.tabStudentsloadcnt = 1 AndAlso Request.Browser.Browser = "IE") Then
                        LoadStudents()
                    End If
                    MSS_Rotation.tabStudentsloadcnt += 1
            End Select
        End Sub

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