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How can I get the error to message to show up whenevery there is an exception during cell update. At the moment, it will surround the cell with red border, but the error won’t show up unless I hover over it. However, if i were to template out the column and put the text box, the error message will show p automatically. I don't need to hover over the cell to see it.
<
TextBox x:Name="_textBox" Text="{Binding Bindings.PlanUnit, Mode=TwoWay, NotifyOnValidationError=true, ValidatesOnExceptions=true }"/>