When my grid first comes up, all cells are white, with no data contents. A selection of them are pulldown menus, the rest are text fields.
For the text fields, the user can type some text, move off the cell and back on with the cursor keys, and then click the Delete key to remove the content. This is the same way Excel works.
But, with the pulldowns, the Delete key marks the cell red (invalid). I’d like to make “no value” a valid selection. How do I do that?
John