Need to format dates in dynamically built WPF DataGrid

Question

We are binding an unknown result set to a WPF DataGrid at run time. Some of our columns are going to contain DateTime values and we need to properly format these date time

Answer 1

I figured out how to do this in code...hopefully there is a way to mimic this in XAML. (Please post if you find a working XAML sample.)

To accomplish this in code, add an event handler for the Grid's AutoGeneratingColumn event, such as:

private void ResultsDataGrid_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    if (e.PropertyType == typeof(DateTime))
    {
        DataGridTextColumn dataGridTextColumn = e.Column as DataGridTextColumn;
        if (dataGridTextColumn != null)
        {
            dataGridTextColumn.Binding.StringFormat = "{0:d}";
        }
    }
}

Answer 2

<DataGridTextColumn Header="Last update"
    Width="110"
    IsReadOnly="True"
    Binding="{Binding Path=Contact.TimeUpdate, StringFormat={}\{0:dd/MM/yyyy hh:mm\}, Mode=OneWay}" />

Answer 3

i run this way. its work complete .

<TextBlock  Text="{Binding Date_start,  StringFormat=\{0:dd-MM-yyyy\}, Mode=OneWay}" />

Answer 4

Hey you can set the locale culture info in the constructor of the WPF form as

this.Language = XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag);

Or you can include the xml markup xml:lang="en-GB" in the window header markup

Answer 5

The answer of FarrEver, May 11 is good, but by me it doens't function. i still get American mm/dd/yyy instead my German dd/mm/yyyy. So I propose to find the regional settings of computer and use it in StringFormat

    Private Sub DGrid_AutoGeneratingColumn(ByVal sender As System.Object, ByVal e As Microsoft.Windows.Controls.DataGridAutoGeneratingColumnEventArgs)
    If e.PropertyType Is GetType(DateTime) Then
        Dim dataGridTextColumn As DataGridTextColumn = TryCast(e.Column, DataGridTextColumn)
        If dataGridTextColumn IsNot Nothing Then
            Dim ShortDatePattern As String = System.Globalization.DateTimeFormatInfo.CurrentInfo.ShortDatePattern
            dataGridTextColumn.Binding.StringFormat = "{0:" + ShortDatePattern + "}" '"{0:dd/MM/yyyy}"
        End If
    End If
End Sub

see also: my blog

Answer 6

Format the binding by StringFormat:

<DataGridTextColumn Header="Fecha Entrada" 
                    Width="110"  
                    Binding="{Binding EnterDate, StringFormat={}\{0:dd/MM/yyyy hh:mm\}}"
                    IsReadOnly="True" />

I think it's better than writing code behind pieces of code