I have master page and child page.
In the child page I am adding one user control at the runtime.
In the user control I am using RadAjaxloading Pannel and one RadAjaxPannel.
And inside the RadAjaxPannel I have a drop down list which does the postback to refresh the data on the control.
Now when I run the code for the first time when I change the value from drop down list then it shows me the loading image but does not any post back.
And in the second time it does a full page post back. In second I am not getting any loading image but it refresh the entire page.
Here is my master page code
here is my child page code
here is control code which i am adding at the runtime