if和else for visible form

Question

我有这段代码但是返回错误

private void formshow_Click(object sender, EventArgs e)
        {
           if (form1.Visible)                
               {
                   MessageBox.Show("This form is visible");
               }
           else
               {
                   Form2 f = new Form2();
                   f.Show();
               } 
        }

请帮助我

Answer 1

form1是当前实例的类型吗？如果是，请将if (form1.Visible)更改为if (this.Visible)或仅if (Visible)。