.net - Winforms - Load 和 Activated 事件的顺序

Question

我们的一位用户发送了我们 .NET Winforms 应用程序的日志，表明 Activated事件正在发生 之前 Load事件。我不认为这是可能的，并假设 Load 进行编码。总是会在 Activated 之前发生.

有没有其他人观察到Activated发生在 Load 之前?

如果是这样，为什么以及有什么方法可以确保它不会发生？

Answer 1

来自 Order of Events in Windows Forms在 MSDN:

Application Startup and Shutdown Events

The Form and Control classes expose a set of events related to application startup and shutdown. When a Windows Forms application starts, the startup events of the main form are raised in the following order:

System.Windows.Forms.Control.HandleCreated

System.Windows.Forms.Control.BindingContextChanged

System.Windows.Forms.Form.Load

System.Windows.Forms.Control.VisibleChanged

System.Windows.Forms.Form.Activated

System.Windows.Forms.Form.Shown

When an application closes, the shutdown events of the main form are raised in the following order:

System.Windows.Forms.Form.Closing

System.Windows.Forms.Form.FormClosing

System.Windows.Forms.Form.Closed

System.Windows.Forms.Form.FormClosed

System.Windows.Forms.Form.Deactivate

您是否在任何启动事件中使用 MessageBox？由于 Windows 窗体消息循环处理对话框窗口的方式，这可能会导致事件显示为无序触发。