We have a grid in the RadCombo and we are using a couple GridDateTimeColumns with filtering enabled. When the user clicks on the Date control to pull up the pop-up its behind the Grid and they can not select a date to filter on. Is there a z-order that needs set here?
I would like to clarify that this behavior is due to the fact that the RadComboBox drop down area has a z-index value. Therefore you have to apply higher value of your pop-up calendar in order to appear on the top of the drop down area. Please use the following styles to avoid that problem.
z-index: 7000 !important;
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