private PermissionDetailWindow()
{
_vmPermDetail = new PermDetailViewModel();
_vmPermDetail.Window = this;
this.DataContext = _vmPermDetail;
this.AddModel(_vmPermDetail);//PermDetailViewModel.SelectedPermType绑定时，需要指定source，故添加
InitializeComponent();
}
public PermissionDetailWindow(PermDetailViewModel vm = null)
: this()
{
if (vm != null)
{
vm.CopyTo(_vmPermDetail);
}
base.Title = _vmPermDetail.IsNew ? "新增权限" : "修改权限";
txtPerCode.IsReadOnly = _vmPermDetail.permdata.per_code.IsNotEmpty();
}
