i designed a textbox foe date picker but i cant add a custom text inside the textbox before choosing date.i want to add "select a date"
<Grid>
<DatePicker x:Name="DateGviya" SelectedDate="{Binding CurrentDate}" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="97,77,0,0">
<DatePicker.Resources>
<Style TargetType="{x:Type DatePickerTextBox}">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<TextBox x:Name="PART_TextBox" Text="{Binding Path=SelectedDate, StringFormat='dd/MM/yyyy hh:mm:ss tt', RelativeSource={RelativeSource AncestorType={x:Type DatePicker}}}" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</DatePicker.Resources>
</DatePicker>
</Grid>
CodePudding user response:
You could use the TargetNullValue
property of the binding:
<DatePicker x:Name="DateGviya" SelectedDate="{Binding CurrentDate}" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="97,77,0,0">
<DatePicker.Resources>
<Style TargetType="{x:Type DatePickerTextBox}">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<TextBox x:Name="PART_TextBox"
Text="{Binding Path=SelectedDate,
StringFormat='dd/MM/yyyy hh:mm:ss tt',
RelativeSource={RelativeSource AncestorType={x:Type DatePicker}},
TargetNullValue='Select a Date'}" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</DatePicker.Resources>
</DatePicker>