在应用程序中，当另一个表单关闭时打开一个表单
问题描述：
如何一次性设置属性只在Windows应用程序中打开一个表单
How to set property on single time only one form open in windows application
答
打开第二个表单时需要关闭第一个表单。
只需按下打开Form2的按钮即可轻松写入代码：
You need to close the first form when opening the second one.
Its easy you just go to your button that opens Form2 and write in the Code:
Close();
这将关闭Form1，然后你输入打开第二个表格的代码。
this will close Form1 and after that you put in your code that opens your second form.