In my test such issue does not occur, the UXComboBox will have the correct SelectedValue when bound properly. Attached is the test page I am using for this scenario.

Can you give me some idea for why on the first display the combo box is populated but the current value does not display in the combo box but it does in a text box next to it. When I close out the view and reopen it, the combo box is now populated. My bindings are correct or it would not display on the second try and the combo box is populated, I can drop it down and see the values it just doesn't display the current value. On a form with 10 combo boxes about 1/2 display the current value the first time but all of them display it the second time and all are populated the first time.

Bill,

Can you replicate the issue in a small working sample? For instance, take the example that Glenn sent, and adjust as necessary until it shows your problem.

Thanks,
Jimmy