Trouble with ComboBoxAdv PopupControlContainer

Hello, (I am using SyncFusion Tools 2.1.0.9 so hopefully this can be solved using that version since I am not in a position to change versions) I have a PopupControlContainer with two ComboBoxAdv controls on it. When I click on the drop-down arrow of the first comboBox, everything works fine and the comboBox''s list is displayed. However, if I click on the drop-down arrow of the second comboBox without selecting an item from the first list, the second comboBox just displays an empty list. Then, if I go back to the first comboBox, it too displays an empty list. I have attached a sample demonstrating this. Follow these steps after starting the app: 1. Click the drop-down arrow of the left comboBox. The list should be displayed correctly. 2. Without choosing an item from the list, hit the drop-down arrow of the comboBox on the right. It will incorrectly display an empty list. 3. Go back to the comboBox on the left and click its drop-down arrow. It to will display an empty list. Any help is greatly appreciated. -Flack

comboboxadv_popupcontrolcontainer.zip

Quick update. I seemed to have solved the problem by subscribing to the Leave events of the comboBoxes and adding this line to the event handler: this.popupControlContainer1.CurrentPopupChild = null; Now everything seems to work fine. Still, if anyone has a different solution, please let me know. Thanks. -Flack