绑定到后面代码中的宽度属性 [英] binding to width property in code behind

问题描述

我有一种情况，我需要用一个按钮创建视图框.这个的 xaml 如下: 请观察 viewbox 的 Width 属性.宽度应该根据滑动条增加/减少(向右移动增加它，向左移动减少它).如下所列，我知道如何在 xaml 中执行此操作，并且效果很好.但我的要求是能够在后面的代码中创建视图框并为其分配属性.

I have a situation where I need to create View box with one button. The xaml for this is as below: Please observe Width property of viewbox. The Width should be increased/decreased according to a slider bar(moving to right increases it, to left decreases it). As listed below I know how to do it in xaml and it works fine. But my requirement is to be able to create viewbox in code behind and assign it the properties.

 <WrapPanel x:Name="_wrpImageButtons" Grid.IsSharedSizeScope="True"
           ScrollViewer.CanContentScroll="True" d:LayoutOverrides="Height" 
           Margin="5">
    <Viewbox x:Name="_ScaleButton" 
             Width="{Binding Value, ElementName=ZoomSlider}" Stretch="Fill">
         <CustomButton:_uscVCARSImagesButton x:Name="_btnImage1"/>
    </Viewbox>
 </WrapPanel>

谢谢.

推荐答案

这应该可以满足您的需求:

This should do what you want:

Viewbox x = new Viewbox();
Binding bnd = new Binding("Value") { ElementName = "ZoomSlider"};
BindingOperations.SetBinding(x, Viewbox.WidthProperty, bnd);
// ... Code to insert the Viewbox into the WrapPanel etc.

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