This example demonstrates the Transparency feature of AJAX Loading Panel. Since Telerik RadAjax v1.6 the updated control is not already replaced by the shown loading panel. Instead, the loading is shown over the control.

The old "replacing" effect could still be achieved setting an equal background colors of the loading panel and the updated control (like it is done here). In case of no transparency (value 0), the updated control will be "replaced" by the loading panel during the AJAX update.

The transparency of the loadng panel is set in percentage. Default value is 0 - loading panel is not transparent and covers the updated control. Value of 100 will make the loading fully transparent.

You can change the transparency value to achieve any desired effect.