Hi Cetin,
thanks for your help, I haven't replied earlier as I've been too busy and had to drop the updateable combo project, I understand your approach to dynamically adding rows to a combo and its datasource, but I try to use buffered local views for my RowSource(s), with RowSourceType set to fields ( e.g. mylocalview.field1,field2 ) typically the BoundColumn is set to 2 and the Default value of field2 calls a UDF stored in the dbc to obtain a unique value ( e.g. NewId('mylocalview' ) which is then stored to the underlying ControlSource, so it's not as simple as Insert(ing) into the view and Requering the combo. I guess what I'm looking for is a combo class that I can set the RowSource & RowSourceType properties, and add rows with the added luxury of buffering my data ( my form class takes care of all buffered views and table updates ( until now )), anyway I won't take up any more of your time

Thanks again

Pete