在C＃中创建类和对象 [英] Make Class and Object in C#

问题描述

第1次制作本课程

1st make This Class

{
    public class Customer
    {
        public Customer()
        {

        }
        private string m_Name;

        public string Name
        {
            get { return m_Name; }
            set { m_Name = value; }
        }

        private string m_CusCode;

        public string CusDese
        {
            get { return m_CusCode; }
            set { m_CusCode = value; }
        }


    }
}

和第二步此类

And 2nd Step this Class

public Customer GetCustomer(string pCusCode)
       {
           Customer c = new Customer();
           c.Name = "asif";
           return c;
       }

和第3个MAke这个班级

And 3rd MAke This Class

private void button1_Click(object sender, EventArgs e)
        {
            Customer c2 =  new Customer();
            GetCustomer("18-020-00000005");
            textBox1.Text = c2.Name;
        }

       

        private void Form1_Load(object sender, EventArgs e)
        {

        }

在第二步数据显示名称等所有并正确返回c<<

但是当按钮功能加载时在任何变量中都没有数据

我做了什么错误???

推荐答案

你好，



更改button1_click，如下所示。

Hello,

Change button1_click as shown below.

private void button1_Click(object sender, EventArgs e)
{
    Customer c2 =  Customer.GetCustomer("18-020-00000005");
    textBox1.Text = c2.Name;
}

忘记添加以下内容

将GetCustomer方法设为静态

Forgot to add following
Make the GetCustomer mthod as static

public static Customer GetCustomer(string pCusCode)
{
    Customer c = new Customer();
    c.Name = "asif";
    return c;
}

问候，

Regards,

嗨saimm，



我希望将返回对象分配给另一个对象可以解决问题。

请尝试以下代码。

Hi saimm,

I hope assigning returning object to another object would resolve the issue.
Try the below code.

Customer c2 = new Customer();
c2= GetCustomer("18-020-00000005");

但是为什么在地球上你将该字符串值传递给GetCustomer（）函数;-)



问候，

RK

But why in the earth you are passing that string value to GetCustomer() function ;-)

Regards,
RK

嗨saimm，



1.错误：你不要将 GetCustomer 的结果分配给 c2 变量。顺便说一句。你不需要分配两次。所以这样做：

Hi saimm,

1. Error: You don''t assign the result of GetCustomer to your c2 variable. Btw. you don''t need to assign it twice. So do it like this:

Customer c2 = GetCustomer("blablabla");
textbox1.Text = c2.Name;

2.错误：你对字符串参数<$ c $什么都不做c> pCusCode 在 GetCustomer 方法中。因此，使用不同的参数调用GetCustomer没有任何效果....

2. Error: You do nothing with the string parameter pCusCode in the GetCustomer method. So there is no effect in calling GetCustomer with different parameters....

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