如何通过依赖属性传递参数 [英] how to passing parameters through dependencyproperty

问题描述

大家好

iam借助dependencyproperty创建属性.

hi all

iam creating a property with help of dependencyproperty.

public bool IsPurpule
      {
          get { return (bool)GetValue(IsPurpuleProperty); }
          set { SetValue(IsPurpuleProperty, value); }
      }

      // Using a DependencyProperty as the backing store for IsPurpule.  This enables animation, styling, binding, etc...
      public static readonly DependencyProperty IsPurpuleProperty =
          DependencyProperty.Register("IsPurpule", typeof(bool), typeof(mystackpanel), new UIPropertyMetadata(false, IsPurplePropertyChanged));

      private static void IsPurplePropertyChanged(DependencyObject dependency, DependencyPropertyChangedEventArgs args)
      {
          mystackpanel stackpanel = dependency as mystackpanel;

          if (stackpanel != null)
          {
                                     //if i want pass color from xaml how to pass the colr insted of brushes.purple
              stackpanel.Background = Brushes.Purple;
          }

      }

//xaml code
                       //here insted of bool variable i want to pass color?  
<local:mystackpanel IsPurpule="True" >

        </local:mystackpanel>

如何让我知道?

在此先感谢

how can i do this let me know?

Thanks in advance

推荐答案

如果要实现与Background属性类似的功能，则可以使用Brush类型的DependencyProperty:

If you want to achieve similar functionality to the Background property, you could use a Brush type DependencyProperty:

public Brush MyCustomColor
{
    get { return (Brush)GetValue(MyCustomColorProperty); }
    set { SetValue(MyCustomColorProperty, value); }
}
		
public static readonly DependencyProperty MyCustomColorProperty =
    DependencyProperty.Register("MyCustomColor", typeof(Brush), typeof(mystackpanel));

代替bool使其成为typeof字符串

Instead of bool make it as typeof string

这篇关于如何通过依赖属性传递参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！