nte cross reference

Now we will introduce you to the simplest cross-form operation. The WinForm is a class, and the C # class is a reference type. So we should be able to pass the WinForm class, so we can not perform the operation? Effect description: There are three forms and the order is (1) click the button in the first form to bring up the second form and hide the first form. (2) The third form is displayed from the secon

1. Import packages or join dependencies2. Introduce the spring configuration file:XML version= "1.0" encoding= "UTF-8"?>Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xmlns:p= "http://www.springframework.org/schema/p"Xmlns:context= "Http://www.springframework.org/schema/context"Xmlns:tx= "Http://www.springframework.org/schema/tx"XMLNS:AOP= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"xsi:schemalocation= "Http://www.springframework.org