Datagridview Combox and Textbox in the same cell

Question

Hi,

I have had a new requirement from a client to have a combobox in a DataGridView (WinForm) which has an 'Other' option which then produces a Textbox so they can enter some text. I basically need a combination of the ComboBox and Textbox Cells.

I have been looking around the net and there doesn't seem to be anything that will do this.

Does anyone know how this could be done, or if it's been done before?

Thanks,

Louis