>>>>>Thanks a lot in advance,
>>>>_
>>>>I think you have to select the column prior to adding it.
>>>
>>>Do you think I'm THAT stupid? :)
>>>
>>>I select the column (Grid, Edit, select the column) then try to drag and drop from the project.
>>
>>Not with Drag & Drop.
>>Just click on Button in Controls Toolbar and then Click in Column.
>
>I wanted to add a button of my own class. But let me try with the regular button now, may be drag and drop was my problem.
___

You can add your classlib to the toolbar. But since (1) you are not that stupid and (2) you manage to update the message after I responded, you already knew that