How to change Autogeneratedcolumn text alignment

donL Published at Dev

donL

I am trying to figure out how to change the text alignment of an auto generated column in code.

    Private Sub dgBook_AutoGeneratingColumn(sender As System.Object, e As System.Windows.Controls.DataGridAutoGeneratingColumnEventArgs) Handles dgBook.AutoGeneratingColumn
        If e.PropertyType = GetType(DateTime) Then
            Dim dataGridTextColumn As DataGridTextColumn = TryCast(e.Column, DataGridTextColumn)
            If dataGridTextColumn IsNot Nothing Then
                dataGridTextColumn.Binding.StringFormat = "{0:d}"
            End If
        End If

        If e.PropertyName = "Amount" Then
            Dim dataGridTextColumn As DataGridTextColumn = TryCast(e.Column, DataGridTextColumn)
            If dataGridTextColumn IsNot Nothing Then
                dataGridTextColumn.Binding.StringFormat = "{0:#,##0.00;(#,##0.00)}"
                'I tried the next line for testing but it did not work
                dataGridTextColumn.SetValue(TextBox.TextAlignmentProperty, TextAlignment.Center)
            End If
        End If
     End Sub

donL

So what I ended up doing was setting up a style in the XAML WPF code

<Window.Resources>
    <Style TargetType="DataGridCell" x:Key="rightAlignCell">
        <Setter Property="HorizontalAlignment" Value="Right"></Setter>
    </Style>
</Window.Resources>

And then I set the cell style to that style in the code behind.

Private Sub datagrid1_AutoGeneratingColumn(sender As System.Object, e As System.Windows.Controls.DataGridAutoGeneratingColumnEventArgs) Handles datagrid1.AutoGeneratingColumn
    If e.PropertyName = "Amount" Then
        Dim dataGridTextColumn As DataGridTextColumn = TryCast(e.Column, DataGridTextColumn)
        If dataGridTextColumn IsNot Nothing Then
            dataGridTextColumn.Binding.StringFormat = "{0:#,##0.00;(#,##0.00)}"
        End If
        e.Column.CellStyle = TryCast(FindResource("rightAlignCell"), Style)
    End If
end sub

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