c＃使用用戶輸入創建一個列表

我正在創建一個接受用戶姓名，年齡和地址的應用程序，然後在用戶單擊「添加」按鈕時將其存儲在列表中。我正在使用帶有用戶輸入的文本框的GUI。

我已經做了一個客戶類，並且不確定接下來要做什麼。我遵循教程和其他問題，但似乎無法找到答案。

public class Customer 
{ 
    private string name; 
    private Int32 age; 
    private string address1; 
    private string address2; 
    private string address3; 


    public string Name 
    { 
     get 
     { 
      return name; 
     } 

     // if name is blank throw argument asking user for input 

     set 
     { 
      if (name == "") 
      { 
       throw new ArgumentException("Please enter your name"); 
      } 
      else 
      { 
       name = value; 
      } 
     } 
    } 

    public Int32 Age 
    { 
     get 
     { 
      return age; 
     } 

     set 
     { 
       age = value; 
     } 
    } 


    // get/set address 

    public string Address1 
    { 
     get 
     { 
      return address1; 
     } 

     set 
     { 
      if (address1 == "") 
      { 
       throw new ArgumentException("Please enter your address"); 
      } 
      else 
      { 
       address1 = value; 
      } 
     } 
    } 

    public string Address2 
    { 
     get 
     { 
      return address2; 
     } 

     set 
     { 
      if (address2 == "") 
      { 
       throw new ArgumentException("Please enter your adress"); 
      } 
      else 
      { 
       address2 = value; 
      } 
     } 
    } 

    public string Address3 
    { 
     get 
     { 
      return address3; 
     } 


     set 
     { 
      if (address3 == "") 
      { 
       throw new ArgumentException("Please enter your adress"); 
      } 
      else 
      { 
       address3 = value; 
      } 
     } 
    }

來源

2016-12-14 skittles

你沒有顯示關於使用列表中的任何代碼，你所期待的。這就是我們需要幫助你的。 – krillgar

研究通用列表：https：//msdn.microsoft.com/en-us/library/6sh2ey19(v=vs.110).aspx。看看例子。在你的情況下，通用參數將是你的「客戶」類。 –

在'Name'屬性設置器中，如果'name'爲空則拋出異常。我假設你想拋出異常，如果'value'爲空或空：'if（string.IsNullOrEmpty（value））throw new ArgumentException（）...' –

這是一個簡單的Windows窗體窗體的例子，它會給你一個想法。基本上你想將客戶列表存儲在私有通用列表變量中。有關如何在C＃中使用通用和非通用列表的更多信息，請參閱C＃here。

public partial class Form1 : Form 
{ 
    // Initialize private generic list where all customers will be stored at runtime 
    private List<Customer> _customers = new List<Customer>(); 

    private void buttonAddCustomer_Click(object sender, EventArgs e) 
    { 
     // It might be a good idea to add some validation logic before assigning the input values 
     var newCustomer = new Customer(); 
     newCustomer.Name = this.textBoxName.Text; 
     newCustomer.Age = Convert.ToInt32(this.textBoxAge.Text); 
     newCustomer.Address1 = this.textBoxAddress1.Text; 
     newCustomer.Address2 = this.textBoxAddress2.Text; 
     newCustomer.Address3 = this.textBoxAddress3.Text; 

     _customers.Add(newCustomer); 
    } 
}

來源

2016-12-14 19:19:24

謝謝你的幫助！ – skittles

，我認爲是在MakeItHappen()方法

using System; 
using System.Collections.Generic; 
using System.Windows.Forms; 

namespace _41150122 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 

     private void btn_Go_Click(object sender, EventArgs e) 
     { 
      MakeItHappen(); 
     } 

     private void MakeItHappen() 
     { 
      List<Customer> customerList = new List<Customer>();//initialize your List<Customer> 
      customerList.Add(new Customer { Name = txtbx_Name.Text, Address1 = txtbx_Address1.Text, Age = int.Parse(txtbx_Age.Text) });//add a record to it 
     } 
    } 



    public class Customer 
    { 
     private string name; 
     private Int32 age; 
     private string address1; 
     private string address2; 
     private string address3; 


     public string Name 
     { 
      get 
      { 
       return name; 
      } 

      // if name is blank throw argument asking user for input 

      set 
      { 
       if (name == "") 
       { 
        throw new ArgumentException("Please enter your name"); 
       } 
       else 
       { 
        name = value; 
       } 
      } 
     } 

     public Int32 Age 
     { 
      get 
      { 
       return age; 
      } 

      set 
      { 
       age = value; 
      } 
     } 


     // get/set address 

     public string Address1 
     { 
      get 
      { 
       return address1; 
      } 

      set 
      { 
       if (address1 == "") 
       { 
        throw new ArgumentException("Please enter your address"); 
       } 
       else 
       { 
        address1 = value; 
       } 
      } 
     } 

     public string Address2 
     { 
      get 
      { 
       return address2; 
      } 

      set 
      { 
       if (address2 == "") 
       { 
        throw new ArgumentException("Please enter your adress"); 
       } 
       else 
       { 
        address2 = value; 
       } 
      } 
     } 

     public string Address3 
     { 
      get 
      { 
       return address3; 
      } 


      set 
      { 
       if (address3 == "") 
       { 
        throw new ArgumentException("Please enter your adress"); 
       } 
       else 
       { 
        address3 = value; 
       } 
      } 
     } 


    } 
}

來源

2016-12-14 19:23:52

c＃使用用戶輸入創建一個列表

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