检查数据绑定是否存在

Question

我正在动态地将xaml文件加载到我的程序中,该程序具有绑定:

<ListView
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Grid.Row="2" BorderBrush="White" Name="ListView1"
    ItemsSource="{Binding Path=line}" HorizontalAlignment="Stretch">
    <ListView.View>
        <GridView>
            <GridViewColumn Header="Lines"
             DisplayMemberBinding="{Binding Path=aline}" />
        </GridView>
    </ListView.View>
</ListView >

在我的程序中,我想检查Binding是否存在.

应该如何实现？

编辑:这aline是DataContext对象的属性

Answer 1

你可以检查这样的绑定:

BindingExpression be = BindingOperations.GetBindingExpression(ListView1, ItemsSourceProperty);
return be != null ? "ItemsSource is bound" : "ItemsSource is not bound";