Set Cell Text using a custom cell

I am creating my own GridDropDownCellRenderer to use as a drop down for a cell. It is basically an advanced version of a drop down for a combo box. However, when I use the cell, I can''t get the text to display correctly.

I.E. In the GridBoundColumn definition, I set the DataSource, the Display Member, and the ValueMember. Unfortunately, it is not displaying the display value in the cell. I have tried to set the FormattedText property, but this doesn''t seem to work.

I figured out that I was using the wrong cell renderer as the base. I should have used:

GridComboBoxCellRenderer