[Solved] Unwanted Ajaxification?

[Miha Markic]

Consider the code below. I hava a link button and a panel below it. I instruct RadAjaxManager to use link button as a source and panel as a target of ajax postback. So far so good. But if I click in button "Postback" which resides inside the panel, I get an ajaxified postback, too - note, the only ajax linke is between link button and panel, no other instructions exist. Is this by design?
Furhter notes: I have a similary structured (big) project and it works like described above plus one problem: whenever I define a link from panel to (same) panel I get an object not set exception ( see my previous post).

<div>

<asp:ScriptManager id="ScriptManager1" runat="server"></asp:ScriptManager>

<asp:LinkButton ID="LinkButton1" runat="server">Ajax to bottom panel</asp:LinkButton>

<asp:Button ID="Button2" runat="server" Text="No Ajax, just postback" />

<asp:Panel

ID="Panel1" runat="server" Height="50px" Width="398px" BackColor="#E0E0E0">

Bottom panel<br />

<asp:Button ID="Button1" runat="server" Text="Postback" OnClick="Button1_Click" />

<asp:TextBox ID="ASPxLabel1"

runat="server" Text="ASPxLabel">

</asp:TextBox>

</asp:Panel>

<asp:TextBox ID="ASPxLabel2"

runat="server" Text="ASPxLabel">

</asp:TextBox>

</div>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" DefaultLoadingPanelID="RadAjaxLoadingPanel1">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="LinkButton1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="Panel1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadAjaxLoadingPanel id="RadAjaxLoadingPanel1" runat="server" Width="75px" Height="75px">

<asp:Image ID="Image1" runat="server" AlternateText="Loading..." ImageUrl="~/RadControls/Skins/Default/Ajax/loading1.gif" />

</telerik:RadAjaxLoadingPanel>

[Steve]

Hi Miha,

Again this is inherited from the MS AJAX and is expected behavior. What our AjaxManager does is add UpdatePanel around the UpdateControl and set triggers for the initiator controls. Try this:

        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:LinkButton ID="LinkButton1" runat="server">Ajax to bottom panel</asp:LinkButton>
        <asp:Button ID="Button2" runat="server" Text="No Ajax, just postback" />
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <asp:Panel ID="Panel1" runat="server" Height="50px" Width="398px" BackColor="#E0E0E0">
                    Bottom panel<br />
                    <asp:Button ID="Button1" runat="server" Text="Postback" OnClick="Button1_Click" />
                    <asp:TextBox ID="ASPxLabel1" runat="server" Text="ASPxLabel">
                    </asp:TextBox>
                </asp:Panel>
            </ContentTemplate>
            <Triggers>
                <asp:AsyncPostBackTrigger ControlID="LinkButton1" />
            </Triggers>
        </asp:UpdatePanel>
        <asp:TextBox ID="ASPxLabel2" runat="server" Text="ASPxLabel">

Best wishes,
Steve
the Telerik team

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[Christopher Blickley]

Miha,

I had the same issue back when I first started using the Prometheus version.  Once I figured out what was happening, I was able to work around it.  There are instructions in the documentation for how to use some javascript to get around it. 

Since this is the way MS.AJAX works, it would be great if Prometheus could get around it somehow, perhaps by automating the javascript that we have to do ourselves now.  Perhaps a property that identifies controls that should always postback instead of ajax callback?  Perhaps there are too many veriables in making that work, but it seems like something that should be possible.

-Chris

[Steve]

Yes Chris, this is something that is logged for investigation in our system and we will do our best to include it for the official Q3 release.

Thank you for the understanding and patience.

All the best,
Steve
the Telerik team

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[Christopher Blickley]

Great news that it is being considered, it certainly isn't a showstopper, but would make things much easier (especially when upgrading from the classic Rad.Ajax to Prometheus).

Thanks,
Chris

[UT_DEV]

It is a normal ajax behavior, but you cancel a postack in folowing way


Sys.Application.add_load(ApplicationLoadHandler);
function ApplicationLoadHandler(sender, args)
{
Sys.WebForms.PageRequestManager.getInstance().add_initializeRequest(CheckStatus);
}

function CheckStatus(sender, args)
{
if(args.get_postBackElement().id == 'PlaceYourControlIDHere')
{
args.set_cancel(true);
}
}

Hope this will solve your issues.
args.get_postBackElement().id  contains id of an element that is raising postback