Start Trigger cellvalidating event

Trigger cellvalidating event

I guess the Column Header Mouse Click would still be raised, but by setting that Sort Mode there would be no glyph there asking to be clicked.

In which case, you could check for sorting from your Binding List/Data Source instead of the Grid View...

Sf Data Grid allows you to validate the data and display hints in case of validation is not passed.

In case of invalid data, error icon is displayed at the top right corner of Grid Cell.

Although you found a workaround, at a high level it seems to me such a workaround should not be needed...unless you customized the Cell Formatting event on the initial load, but somehow the same Cell Formatting event is not getting called when you sort.