How to set validation icon in data cell?

[HOTFIX]

Hi...

I want to set Column Error icons to display them in data cells when it value changed to 5 and less…

I’ve try these codes but it seems they are not working ?!

Partial Class dataDataSet
    Partial Class STOREDataTable

        Private Sub STOREDataTable_ColumnChanging(ByVal sender As Object, ByVal e As System.Data.DataColumnChangeEventArgs) Handles Me.ColumnChanging
            
If (e.Column.ColumnName = Me.columnItem_Quantity.ColumnName) Then
                If CType(e.ProposedValue, Short) <= 5 Then
                    e.Row.SetColumnError(e.Column, "Quantity must be greater than 5")
                Else
                    e.Row.SetColumnError(e.Column, "")
                End If
            End If
        End Sub
    End Class

End Class

-----------------------------------------------------------
Table name: STORE
Field name (to be monitored for low Quantity): Item Quantity
-----------------------------------------------------------

Any ideas please…

Regards...