Enable/disable RadSlidingPane from server code

[Casey]

Is there a way to disable a sliding panel's tab from the server side? The "enabled" attribute on the RadSlidingPane does not seem to do the trick.

[Dobromir]

Hi Casey,

RadSplitter does not offer the required functionality, and with the current implementation of the control such customization is not a trivial task, thus it will require overwriting of several private client-side methods, which is highly not recommended. Nevertheless, you can use its Visible server-side property to toggle the sliding pane's visibility.

Regards,
Dobromir
the Telerik team

[Casey]

I was trying to stay away from overwritting the client side methods, but I guess it cannot be avoided since this is one of the user requirements. I am not a JavaScript expert but I came up with a way to do this. I have the following function called on the window.onload event as well as the ClientEvents-OnResponseEnd of the RadAjax Panel which contains the Radslider.

function DisableRadSlidingPane() {
    var enable = document.getElementById('<%= Me.hdnEnable.ClientID %>').value;
    var pnl = $find('<%= slPaneReportCriteria.ClientID%>');
    if (pnl != null)
        pnl._tabContainer.disabled = enable;
}

I am still having one small issue though. I was assuming that this function would fire upon raising a postback to the RadAjaxPanel that contails has the ClientEvents-OnResponseEnd="DisableRadSlidingPane()" but that is not happening. Do you know why this would be? And is there an alternative way of calling this function? You mention below/above that there are several methods that would require an override. Am I missing one?

Thanks,
Casey

[Dobromir]

Hi Casey,

The ClientEvents-OnResponseEnd property of RadAjaxPanel expects the name of the function that should be assigned as a handler to that event, e.g.:
    ClientEvents-OnResponseEnd="DisableRadSlidingPane"
Please note the missing brackets after the name of the JavaScript function.

In addition, the overwrites, that I mentioned in my previous reply, that need to be applied - several event handler need to be removed / reattached to the tabContainer in order to achieve the required result. For your convenience I have attached a sample page implementing the required functionality. Please note, that this is highly not recommended.

On a side note, I brought this case the attention of the developers of RadSplitter and we will consider implementation of such functionality.

All the best,
Dobromir
the Telerik team