The DataErrorCellAppearance works fine in the grid, but I can't make it work in the AddRow.
Hello Mike,
The DataErrorCellAppearance is only applicable to actual data rows because the add row expects values to be added before the row is committed to the grid. The add row should still show the error icons.
Setting an appearance for an add row cell only when it shows an error is considered to be a new product idea.
You can suggest new product ideas for future versions (or vote for existing ones) at <www.infragistics.com/.../ideas>. Submitting your idea will allow you to communicate directly with our product management team, track the progress of your idea at any time, see how many votes it got, read comments from other developers in the community, and see if someone from the product team has additional questions for you. Remember when submitting your idea to explain the context in which a feature would be used and why it is needed as well as anything that would prevent you from accomplishing this today. You can even add screenshots to build a stronger case. Remember that for your suggestion to be successful, you need other members of the community to vote for it.
Let me know if you have any questions.
I recreated the grid on a smaller scale and it works perfectly. It must be a setting on the original project.
In the original project I worked around it by changing appearance settings on the cell in error. Then the error icon shows.
No need for a new product idea.