绑定依赖项属性在codebehind WPF

问题描述

我有XAML code：

 ＆LT;椭圆X：NAME =节点HEIGHT =10WIDTH =10地图：MapCanvas.Latitude ={结合纬度}图：MapCanvas.Longitude = {结合经度}
                    填写=红行程=红StrokeThickness =1拉伸=制服
                ＆LT; /椭圆＆GT;
 

这

 的xmlns：地图=CLR的命名空间：地图控件;装配=地图控件
 

下面是MapCanvas类的依赖属性：

 公共静态只读的DependencyProperty LatitudeProperty =
        DependencyProperty.RegisterAttached（纵横中的typeof（双），typeof运算（MapCanvas），新PropertyMetadata（double.PositiveInfinity，OnLatitudeLongitudePropertyChanged））;
    公共静态只读的DependencyProperty LongitudeProperty =
        DependencyProperty.RegisterAttached（经度的typeof（双），typeof运算（MapCanvas），新PropertyMetadata（double.PositiveInfinity，OnLatitudeLongitudePropertyChanged））;
 

我知道有类似的问题，但我的问题是如何为经度和纬度做比南，仅次于同code就像在XAML code？

解决方案

  node.SetBinding（MapCanvas.LatitudeProperty，新的绑定（纵横））;
 

您可以绑定这样的..

I have XAML code:

<Ellipse x:Name="node" Height="10" Width="10" map:MapCanvas.Latitude="{Binding Latitude}" map:MapCanvas.Longitude="{Binding Longitude}"
                    Fill="Red" Stroke="Red" StrokeThickness="1" Stretch="Uniform"
                </Ellipse>

and this

xmlns:map="clr-namespace:MapControl;assembly=MapControl"

here is the dependency property in MapCanvas class:

    public static readonly DependencyProperty LatitudeProperty =
        DependencyProperty.RegisterAttached("Latitude", typeof(double), typeof(MapCanvas), new PropertyMetadata(double.PositiveInfinity, OnLatitudeLongitudePropertyChanged));


    public static readonly DependencyProperty LongitudeProperty =
        DependencyProperty.RegisterAttached("Longitude", typeof(double), typeof(MapCanvas), new PropertyMetadata(double.PositiveInfinity, OnLatitudeLongitudePropertyChanged));

I know there was similar questions but my question is how can I do bining in code behind same like in XAML code for longitude and latitude?

解决方案

node.SetBinding(MapCanvas.LatitudeProperty, new Binding("Latitude"));

You can Bind like this..

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