Hello其他程序员,
我使用数据绑定数据网格和东西创建了一个相当复杂的WPF应用程序。由于内容动态变化,窗口本身也会调整大小(就像它应该做的那样)。 我做了一个函数,当大小改变时,窗口与主屏幕的中心对齐,如下所示:
this.SizeChanged += delegate
{
double screenWidth = SystemParameters.PrimaryScreenWidth;
double screenHeight = SystemParameters.PrimaryScreenHeight;
double windowWidth = this.Width;
double windowHeight = this.Height;
this.Left = ( screenWidth / 2 ) - ( windowWidth / 2 );
this.Top = ( screenHeight / 2 ) - ( windowHeight / 2 );
};
它像我怀疑的那样工作。但是,由于内容是数据绑定的,因此在内容可用之前大约需要1/4秒。上面的SizeChanged事件已经完成了它的工作,因此窗口根本不居中。
我可以在触发事件之前实现某种超时而不会锁定所有内容吗?
耐心等待你的回答!
答案 0 :(得分:4)
只是一个猜测,但其中一个可能有效
this.SizeChanged += delegate
{
Dispatcher.BeginInvoke(DispatcherPriority.Background, (Action)delegate()
{
double screenWidth = SystemParameters.PrimaryScreenWidth;
double screenHeight = SystemParameters.PrimaryScreenHeight;
double windowWidth = this.Width;
double windowHeight = this.Height;
this.Left = (screenWidth / 2) - (windowWidth / 2);
this.Top = (screenHeight / 2) - (windowHeight / 2);
});
};
this.SizeChanged += delegate
{
ThreadPool.QueueUserWorkItem((o) =>
{
Thread.Sleep(100); //delay (ms)
Dispatcher.Invoke(DispatcherPriority.Background, (Action)delegate()
{
double screenWidth = SystemParameters.PrimaryScreenWidth;
double screenHeight = SystemParameters.PrimaryScreenHeight;
double windowWidth = this.Width;
double windowHeight = this.Height;
this.Left = (screenWidth / 2) - (windowWidth / 2);
this.Top = (screenHeight / 2) - (windowHeight / 2);
});
});
};
就像我说的那样,因为我没有设置来复制数据加载延迟