WPF窗口退出时异常,请大神帮忙看看!谢谢
GridViewDataColumn item = new GridViewDataColumn();
item.Header = "test";
Binding bind = new Binding();
bind.Path = new PropertyPath("FirstColumn");
item.DataMemberBinding = bind;
item.Name = "test";
RadGridView1.Columns.Add(item);