Date formatting in WPF datagrid
Don`t forget to use DataGrid.Columns, all columns must be inside that collection. In my project I format date a little bit differently: <tk:DataGrid> <tk:DataGrid.Columns> <tk:DataGridTextColumn Binding=”{Binding StartDate, StringFormat=\{0:dd.MM.yy HH:mm:ss\}}” /> </tk:DataGrid.Columns> </tk:DataGrid> With AutoGenerateColumns you won`t be able to contol formatting as DataGird will add its own columns.