/// <summary>
/// 关闭窗体事件
/// </summary>
public override void OnPreviewViewUnLoaded(System.ComponentModel.CancelEventArgs e)
{
e.Cancel = !this.CheckDocData();
if (!e.Cancel) // 关闭窗口时，清除当前打开窗体对象
{
ExtendAppContext.Current.CurrentDocName = string.Empty; // 文书加载也清空
ExtendAppContext.Current.CurntOpenForm = null;
Messenger.Default.Unregister <string>(this);
if (curBaseDoc != null && !curBaseDoc.IsDisposed)
{
GC.Collect();
GC.Collect();
curBaseDoc.Dispose();
GC.SuppressFinalize(curBaseDoc);
GC.Collect();
GC.Collect();
}
}
}
