单个元素的多个DataContexts [英] Multiple DataContexts for a Single Element

问题描述

您好

 

我在DatagridTemplate列中有一个复选框。 datagrid绑定到一个集合。

I have a checkbox inside a DatagridTemplatecolumn. The datagrid is bound to a collection.

复选框，checked状态来自集合（datacontext1），而其可见性来自datacontext / viewmodel（datacontext2）。

The checkbox, checked state comes from the collection(datacontext1) whereas its visibility comes from the datacontext/viewmodel (datacontext2).

这里的最佳做法是什么？

What is the best practice here?

 

 < CheckBox x：Name =" chkSelectPrimary" VerticalAlignment = QUOT;中心" IsChecked =" {Binding IsPrimary，Mode = TwoWay}"


                    &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP; Visibility =" {Binding ColumnVisibility
<？PageDataContext？> }"的Horizo​​ntalAlignment = QUOT;中心" Horizo​​ntalContentAlignment =" Center" />

 <CheckBox x:Name="chkSelectPrimary" VerticalAlignment="Center" IsChecked="{Binding IsPrimary, Mode=TwoWay}"
                                     Visibility="{Binding ColumnVisibility <?PageDataContext?>}" HorizontalAlignment="Center" HorizontalContentAlignment="Center"/>

推荐答案

您可以指定您的来源在XAML中绑定。默认情况下，绑定的Source属性是继承的，但您可以将其覆盖为几乎可以访问的任何内容。

You can specify the source of your binding in XAML. By default, the Source property on a binding is inherited, but you can override it to be pretty much whatever you can access.

http://msdn.microsoft.com/en-us/library/system.windows.data.binding。 source.aspx

 

例如，您的网址可能如下所示：

As an example, yours might look like this:

<CheckBox x:Name="chkSelectPrimary" VerticalAlignment="Center" IsChecked="{Binding Property1, Mode=TwoWay}"
	Visibility="{Binding Property2, Source={StaticResource ViewModel2}}" HorizontalAlignment="Center" HorizontalContentAlignment="Center"/>

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