如何从main.class调用
本文关键字:class 调用 main | 更新日期: 2023-09-27 18:21:40
我有这个代码,我想从我的主类调用:
public void Display()
{
Form1 z = new Form1();
z.listBox1.Items.Add("=============================Summary============================='n'n");
z.listBox1.Items.Add("1st: "+Num1+" 2nd #: "+Num2);
z.listBox1.Items.Add("'n"+" 3rd #: "+Num3+" 4th #: "+Num4);
z.listBox1.Items.Add("'n"+" 5th #: "+Num5);
z.listBox1.Items.Add("'n" + "SUM: " + Sum + " DIFF: " + Sub + "'n" + " PROD: " + Multiply + " QOU: " + Divide);
// result = ("=============================Summary============================='n'n 1st #: " + Num1 + " 2nd #: " + Num2 + "'n 3rd #: " + Num3 + " 4th : " + Num4 + "'n 5th #: " + Num5 + "'n" + "SUM: " + Sum + " DIFF: " + Sub + "'n" + " PROD: " + Multiply + " QOU: " + Divide);
}
在我的主类中,我尝试过这样做:我还尝试过将修饰符更改为public,这样我就可以使用子类中的listbox。。
Class1 zz = new Class1();
zz.Display();
我的问题是如何将Display
从子类调用到我的主类??我刚接触C#,非常感谢你的帮助D
我猜"main class"指的是Form1。您在Display
中所做的是创建一个新的(不可见)Form1(注意Form1 z = new Form1()
中的new
)。相反,您应该将当前可见Form1的引用传递给方法:
public void Display(Form1 z)
{
z.listBox1.Items.Add("=============================Summary============================='n'n");
// etc.
}
在您的Form1代码中:
Class1 zz = new Class1();
zz.Display(this);
确保您的子类设置为public。
public class Class1 {
public void Display {
}
}
然后你可以从你的主类调用该类
public class Main {
public void SomeMethod() {
Class1 zz = new Class1();
zz.Display();
}
}