WPF DataGrid中列的属性绑定问题

WPF中的DataGrid中Column的IsReadOnly和VIsibility等属性绑定时，总没有任何效果，输出里也显示找不到，搜了半天才发现，原来Column不属于visual 或 logical tree，所以不能在树上搜索他的绑定源，需要借助其他方法给属性指定数据源，方法如下：

原文地址：https://*.com/questions/15494226/cannot-find-source-for-binding-with-reference-relativesource-findancestor

<UserControl.Resources>
    <local:BindingProxy x:Key="proxy" Data="{Binding}" />
</UserControl.Resources>

<DataGridTemplateColumn Visibility="{Binding Data.IsVisible, 
    Source={StaticResource proxy},
    Converter={StaticResource BooleanToVisibilityConverter}}">

public class BindingProxy : Freezable
{
    protected override Freezable CreateInstanceCore()
    {
        return new BindingProxy();
    }

    public object Data
    {
        get { return (object)GetValue(DataProperty); }
        set { SetValue(DataProperty, value); }
    }

    // Using a DependencyProperty as the backing store for Data.
    // This enables animation, styling, binding, etc...
    public static readonly DependencyProperty DataProperty =
        DependencyProperty.Register("Data", typeof(object), 
        typeof(BindingProxy), new UIPropertyMetadata(null));
}

原文地址：https://*.com/questions/15494226/cannot-find-source-for-binding-with-reference-relativesource-findancestor