考虑下面的值转换器。我可以轻松地将诸如“Red”和“Green”之类的值传递给我的转换器,但是我如何传递在 XAML 中定义的画笔呢?
FalseBrush
我该如何绑定MyNiceBrush
?
<local:MyBrushConverter x:Key="BackgroundConverter" FalseBrush="Red" TrueBrush="Green" />
<LinearGradientBrush x:Key="MyNiceBrush" StartPoint="0,0" EndPoint="0,1">
<GradientStop Offset="0" Color="#4C7F00" />
<GradientStop Offset="1" Color="#A0B529" />
</LinearGradientBrush>
在 XAML 中,我将对象的属性绑定到此转换器:Background="{Binding MyClass.TrueOrFalseProperty, Converter={StaticResource BackgroundConverter} ...
这是我的转换器:
public class MyBrushConverter : IValueConverter
{
public Brush FalseBrush { get; set; }
public Brush TrueBrush { get; set; }
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if ((bool)value)
return TrueBrush;
else
return FalseBrush;
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}