在MFC中，对话框的初始化采用的是重载虚函数OnInitialDialog的方法，在C#中可以直接在需要添加消息的类中添加消息处理函数。

在对话框载入时调用的函数如下：

1 private void Form1_Load(object sender, EventArgs e)2 {3 label1.Text = "C#";4 }

MSDN中说明如下：

 

Form.Load Event

.NET Framework 4.5

Occurs before a form is displayed for the first time.

Remarks

You can use this event to perform tasks such as allocating resources used by the form.