I've been searching for a while and haven't been able to find a solution.
My goal is to bind a property in my ViewModel to the selected item of a listbox in my custom control.
First off - This calendar control has been sourced from Jarloo Custom Calendar. I have merely been modifying it for custom personal use.
The calendar control (abbreviated) is as below:
<ResourceDictionary>
<Style TargetType="{x:Type Neptune:Calendar}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Neptune:Calendar}">
<!--Some header items and other misc controls....-->
<DockPanel>
<!--Calendar-->
<ListBox ItemsSource="{Binding Days}" Background="{x:Null}"
SelectedItem="{Binding SelectedDay, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
</DockPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And the local (abbreviated):
public class Calendar : Control
{
public ObservableCollection<Day> Days { get; set; }
//SelectedDay Property
public static readonly DependencyProperty SelectedDayProperty =
DependencyProperty.Register("SelectedDay", typeof(Day), typeof(Calendar),
new PropertyMetadata(null, OnSelectedDayChanged));
public Day SelectedDay
{
get { return (Day)GetValue(SelectedDayProperty); }
set { SetValue(SelectedDayProperty, value); }
}
private static void OnSelectedDayChanged(DependencyObject pager, DependencyPropertyChangedEventArgs e)
{
Calendar d = pager as Calendar;
//MessageBox.Show(d.SelectedDaDateString());///THIS SHOWS CORRECT SELECTED DATE!!!!
d.SetValue(ThisDayProperty, d.SelectedDay);
}
In the window that utilizes this control, I have tried binding to this SelectedDay Property and even made another DP to pass the value to just for testing. Neither values are binding correctly.
<Neptune:Calendar Grid.Row="1" x:Name="Calendar" Margin="0,10,0,0"
ThisDay="{Binding DaySelected, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged,
RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}">
I don't understand... Why is this not working?
All I want to do is expose a property that reflects the selected item in the calendar list of Days.
