RadAjaxManager1_AjaxRequest Not Firing

[Mark Galbreath]

I have RadListBox1 and RadListBox2.  They are parked in a RadPageView attached to a RadTab.  Either listbox can transfer (move) items from one to the other with the transfer button, 2x-click, or drag-n-drop.  Everything is cool.  I have a "Save" button, the purpose of which is to update RadListBox2's database table.  On button_click I am grabbing the items in RadListBox2 as a collection, parsing the collection, and transforming into a comma-delimited string all on the client in order to pass through RadAjaxManager1_AjaxRequest:

function btnClick() {
    var list = $find("<%= radListBox2.ClientID %>");
    var lstNames = list.get_items();
    var arg;

    if( lstNames.get_count() == 0 ) {

        if (confirm("blah, blah, blah.\n\nProceed?")) {
            arg = 0;
        } else { return 0; }

    } else {
        arg = lstNames.get_count() + ",";
        lstNames.forEach( function( item ) { arg = arg + item.get_text() + ","; });
        arg = arg.substr( 0, arg.length - 1 );
    }

    var ajaxMgr = $find("<%= RadAjaxManager1.ClientID %>");
    ajaxMgr.ajaxRequest( arg );
}

I have confirmed through JavaScript alerts that all is well here.  BUT - ajaxMgr.ajaxRequest( arg ) doesn't fire its associated method in the code-behind.  RadScriptManager is set:

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" OnAjaxRequest="RadAjaxManager1_AjaxRequest">

I have Ajax turned on in Page_Load:

RadAjaxManager.GetCurrent( Me ).EnableAJAX = True

I have AutoPostBackOnTransfer turned off on both listboxes because nothing works when switched on:

radListBox1.AutoPostBackOnTransfer = False
radListBox2.AutoPostBackOnTransfer = False

And the code-behind method looks fine to me:

Protected Sub RadAjaxManager1_AjaxRequest( sender As Object, e As AjaxRequestEventArgs ) Handles RadAjaxManager1.AjaxRequest
    Dim str_Array As String() = Split( e.Argument, "," )
    Dim numRecords = Integer.Parse( str_Array( 0 ))

    Dim lst_Tables As IList( Of String ) = New List( Of String )
    Dim p_data As String = String.Empty

    If numRecords > 0 And numRecords < 10 Then
        p_data = e.Argument.Substring( 2 )
    ElseIf numRecords > 9 And numRecords < 100 Then
        p_data = e.Argument.Substring( 3 )
    Else
        p_data = e.Argument.Substring( 4 )
    End If

    ' sanity check
    RadAjaxManager1.Alert( "numRecords = " & numRecords )
    RadAjaxManager1.Alert( "p_data = " & p_data)

    * * *
End Sub

But my sanity checks are never invoked.

Got any clues, guys?

Cheers!
Mark

[Nikolay Rusev]

Hello Mark,

I guess you are not handling client click event of Save button correctly.
For your convenience I am sending sample page demonstrating that server AjaxRequest event is fired.
Please find the attachment.

All the best,
Nikolay
the Telerik team

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[Mark Galbreath]

Thanks for replying, Nikolay!

The problem is this:

<AjaxSettings>
    <telerik:AjaxSetting AjaxControlID="RadAjaxManager1"></telerik:AjaxSetting>
    <telerik:AjaxSetting AjaxControlID="btn_Save">
        <UpdatedControls>
            <telerik:AjaxUpdatedControl ControlID="radListBox1" LoadingPanelID="RadLoadingPanel1" />\
            <telerik:AjaxUpdatedControl ControlID="radListBox2" LoadingPanelID="RadLoadingPanel1" />
        </UpdatedControls>
    </telerik:AjaxSetting>
</AjaxSettings>

Whenever I add the AjaxSettings, the listboxes stop calling AjaxRequest from the client.  When I remove AjaxSettings, AjaxRequest is called and the database is updated, though the browser must be manually refreshed to see the changes.  This has been a PITA for over a week now.

Cheers!
Mark