WPF加载Winform窗体时 报错：子控件不能为顶级窗体

一、wpf项目中添加引用
WindowsFormsIntegration
System.Windows.Forms

二、Form1.Designer.cs 的 partial class Form1 设置为：public partial class Form1

三、在xaml.cs里加入_unityFormControl.TopLevel = false;

 public UnityWPFControl()
 {
 InitializeComponent();
 _unityFormControl.TopLevel = false;
 }