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set_autoPostBack false and true not posting back

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This is a migrated thread and some comments may be shown as answers.
Frank
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Frank asked on 31 Oct 2014, 11:31 AM
Since we updated our RadControls to the latest version, we noticed the clientside set_autoPostBack functionality has changed.

 
If you want a confirmation from the user before the button is posted, we set the autopostback to false. Once all is confirmed we put it back on true.

Like:
<head runat="server">
    <script>
        function ConfirmButton(button, args) {
            button.set_autoPostBack(false);
             
            if( confirm('Are you sure?'))
                button.set_autoPostBack(true);
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
        <telerik:radscriptmanager runat="server" />
        <asp:Literal runat="server" ID="ltStatus" /><br/>
        <telerik:radbutton id="btnCredit" runat="server" text="DoPostback?" onclientclicked="ConfirmButton" onclick="btnCredit_OnClick" />
    </form>
</body>

When you confirm, the button doesn't get postbacked.
Introducing a var with the confirmvalue will work, but why is this ?

<script>
    function ConfirmButton(button, args) {
        var setPostback = false;
        if (confirm('Are you sure?'))
            setPostback = true;
 
        button.set_autoPostBack(setPostback);
    }
</script>


Our previous Telerik Version was 2013.1.504.40

Thanks in advance

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Danail Vasilev
Telerik team
answered on 04 Nov 2014, 09:23 AM
Hello Frank,

I would suggest when you want to cancel a postback you use the accepted and officially documented approach - set the set_cancel(true) method of the event argument of OnClientClicking event. See an example in the OnClientClicking help article.

As for the set_autoPostBack() method, in order to use it in events make sure that this happens at an earlier stage(i.e., the cancellable OnClientClicking  event and not the OnClientClicked event).

Regards,
Danail Vasilev
Telerik
 

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