c# - 最小化所有形式的类

Question

我如何将其转换为最小化所有子窗体的类？当我尝试将其转移到类时出现错误:

The type or namespace name 'MdiChildren' could not be found (are you missing a using directive or an assembly reference?)

public void minimizeAll()
{
   foreach (Form childForm in MdiChildren)
   {
      childForm.WindowState = FormWindowState.Minimized;
   }
}

Answer 1

MdiChildren 不是静态属性，您需要使用窗体的实例。您可以传入一个表单作为参数。

public void minimizeAll(Form parentForm)
{
   foreach (Form childForm in parentForm.MdiChildren)
   {
      childForm.WindowState = FormWindowState.Minimized;
   }
}