Cannot set the handler to my image

[Julien]

Hi,

I need to do a demo for tomorrow using your ajax dock control.

But I've got some problem by only trying to reproduce your sample.

You have a method "OnClientInitialize" which call the javascript method "SetHandleDock".

But in this method:

function SetHandleDock(dock, args) {
            dock.set_handle(document.getElementById("Handle_" + dock.get_id()));
        }

with the dock.get_id(), I receive something like "with the dock.get_id(), I receive something like 
"ctl00_MainContent_RadDock1"

Because it's looks like that asp.net has changed my id(which was on start the RadDock1).

Then, when trying to get the element by id, will try to access to "Handle_ct100_MainContent_RadDock1" which doesn't exist, the one which exist has the name Handle_RadDock1.

How to avoid this behavior? Can I eventually specify to the RadDock the handle's id?

[Slav]

Hi Julien,

Indeed, the id of the dock controls in the online demo Dock / Set Drag Handle Client-side is constructed depending on the particular setup. If a RadDock is placed in a container, the ASP.NET generates its client id based on its position in the page.

To avoid this behavior you can use an ASP Image control as a handle, because its client id is constructed via the same patten, used for the RadDock's id. You can find attached a sample project, implementing the suggested solution. Please use it as a base for your further development.

Regards,
Slav
the Telerik team