Ever wondered how to display the correct cursor in an application that is databinded to async methods?
Pretty easy solution, just databind the cursor on the window itself.
Here's how:
- Add an IsBusy property on the DataContext (and implement INotifyPropertyChanged on it)
- Add the following to your window xaml
xmlns:valueConverters="clr-namespace:XXX.ValueConverters"
Cursor="{Binding IsBusy, Converter={valueConverters:CursorExtensionConverter}}"
- Create the following ValueConverter
public class CursorExtensionConverter : MarkupExtension, IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if (value != null && ((bool)value))
return Cursors.Wait;
else
return Cursors.Arrow;
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
public override object ProvideValue(IServiceProvider serviceProvider)
{
return instance;
}
private static CursorExtensionConverter instance = new CursorExtensionConverter();
}
Note: Use of MarkupExtension