Joel,

>I have a problem with the mmUltraGrid when I click on the properties tab it doesn't synchronize the data with the textbox controls.

Whether the controls synchronize or not is completely up to Windows Forms data binding. If you bind the controls to thte same data source, they are automatically synchronized by the form's Binding Context manager. I recommend checking your bindings to make sure they are set the same.

>Also
>I'm using the mmMaintenanceForm for my Foreign key tables. But the Primary key field of some table are varchar and editable (supplier number) When we press the new button I want to check in the database if that supplier number already exist. Is there a fast way or an object the do that check up.

Probably the fastest way to do this is to have a business object method call a stored procedure that performs the check.

Regards,