类型'System.InvalidOperationException'的异常

问题描述

嗨我有一个计时器，在过去的事件中，我想更改WindowState.但我收到此错误:
调用线程无法访问该对象，因为其他线程拥有它.

我应该怎么办?这是一个WPF项目

好的，这是我的代码

HiI have a timer which in Elapsed Event i want to change the WindowState. but i get this error:
The calling thread cannot access this object because a different thread owns it.

what should i do? it''s a WPF project

ok here is my code

System.Timers.Timer timer=new System.Timers.Timer();

private void Window_Loaded(object sender, System.Windows.RoutedEventArgs e)
		{
            this.WindowState = System.Windows.WindowState.Minimized;
            timer.Interval = 5 * 1000;
                timer.Enabled = true;
                timer.AutoReset = true;
                timer.Start();
		}

 void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            try
            {

                    timer.Enabled = false;
                    this.WindowState = System.Windows.WindowState.Normal;
                     .....


                timer.Enabled = true;
                timer.Start();

            }
            catch (Exception ex)
            {
                Logger.Log("OnTimer Error:" + ex.Message);
            }
        }

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