Getting date from DatePicker in format yyyy/MM/dd

Question

I have a WPF C# application (.NET 4.0) and I have a date picker. I would like to know if I can change the format date (the text property of the date picker) to the yyyy/MM/dd format.

I am using the MVVM pattern, so I would like to know the XAML code, if it is possible to do it in this place.

Answer 1

I can use this code:

<DatePicker SelectedDate="{Binding myVideModelProperty}"
                    Height="25" HorizontalAlignment="Left" Margin="81,-2,0,0" Name="myDatePicker" VerticalAlignment="Top" Width="115">
            <DatePicker.Resources>
                <Style TargetType="{x:Type DatePickerTextBox}">
                    <Setter Property="Control.Template">
                        <Setter.Value>
                            <ControlTemplate>
                                <TextBox x:Name="PART_TextBox" 
                                    Text="{Binding Path=SelectedDate, RelativeSource={RelativeSource AncestorType={x:Type DatePicker}}, StringFormat={}{0:yyyy/MM/dd}}" />
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Style>
            </DatePicker.Resources>
        </DatePicker>

Using the datePicker resources I can set the format of its textBox. In this way, It is not needed a converter, neither a general template and any other extra code.

Answer 2

According to this post you can change the culture to get the correct date format

System.Globalization.CultureInfo culInfo = new System.Globalization.CultureInfo("en-us");
System.Globalization.DateTimeFormatInfo dtinfo = new System.Globalization.DateTimeFormatInfo();
dtinfo.ShortDatePattern = "yyyy/MM/dd";