Thank you for writing.
Once you have populated the GridViewMultiComboBoxColumn with data, in order for a cell to display a value from the column data source, you should set the cell Value property to a corresponding value. For example your column have values "val1", "val2", "val3", and you want the cell in the first row to show "val2", you just need to set its Value property:
I hope this helps.
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for WINFORMS.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely.
Sign up for Free application insights >>