<TextBox Grid.Column="3" Grid.RowSpan="1" Margin="0" Name="txtIssue" Text="{Binding cus_issue, StringFormat=d, Mode=Default}" HorizontalAlignment="Stretch" VerticalAlignment="Center" />If I have a date like 30th October 1998 it displays in the textbox like 10/30/1998 which is incorrect according to my culture settings. It should be 30/10/1998.