Datagridview binding + comboboxcolumn

[PROKA]

I have a datagridview object binded to a database.
Im adding a new DataGridViewComboBoxColumn to it (from design view or code view, doesnt matter) and when I run the application everything seems to be ok, but I CAN"T CHECK THE Check boxes. Its very strange. The column is NOT read only.

Any help appreciated

 

[PROKA]

( No response?

 

[IUnknown]

Were you able to check the checkbox before adding the ComboBox?

Take a look at this DGV FAQ. Section 3.5.1 seems relevant.