將數組傳遞給事件C中的方法＃

我試圖創建程序的一部分，其中用戶按下按鈕並將圖像放置在9個圖片框之一中。每次點擊按鈕時，都應該選擇不同的圖片框。然而，在我開始之前，我無法讓我的方法看到我想要傳遞的數組。將數組傳遞給事件C中的方法＃

我有2個數組，插槽和插槽使用，我試圖在程序啓動時將它們初始化。但是，當我嘗試將它們傳遞給在「Button1」內調用的方法「randomBox」時，Visual Studio稱它們不存在。我如何使這些數組在我的代碼中可見？

非常感謝安東尼

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace pin_program 
{ 
    public partial class Mainscreen : Form 
    { 
     //Sets where users files are to be stored (for later use) 
     string activeDir = @"C:\Users\Tony\Downloads\Programs\pin program\Users"; 

     public Mainscreen() 
     { 
      InitializeComponent(); 
     } 

     //method to generate random number 
     private int RandomNumber(int min, int max) 
     { 
      Random random = new Random(); 
      return random.Next(min, max); 
     } 

     public void randomBox(int pictureVal, PictureBox[] Slots, bool[] SlotsUsed) 
     { 
      //generate random number 
      int j = RandomNumber(0, 9); 

      if (SlotsUsed[j] == false) 
      { 
       // Create image, assign it and set slots value to used 
       Image newImage = Image.FromFile(@"C:\Users\Tony\Downloads\Programs\pin program\pin program\pin program\Images\" + pictureVal + ".jpg"); 
       Slots[j].Image = newImage; 
       SlotsUsed[j] = true; 
      } 
      else 
       do 
       { 
        j = RandomNumber(0, 9); 
       } while (SlotsUsed[j] == false); 

      return; 
     } 

     private void button1_Click(object sender, EventArgs e) 
     { 
      //for use later 
      string userName = textBox1.Text; 
      //for use later 
      label1.Visible = true; 

      //test call of method. 
      randomBox(1, Slots, SlotsUsed); 
     } 

     public void Mainscreen_Load(object sender, EventArgs e) 
     { 
      //array for slots 
      PictureBox[] Slots = new PictureBox[9]; 
      Slots[0] = pictureBox1; 
      Slots[1] = pictureBox2; 
      Slots[2] = pictureBox3; 
      Slots[3] = pictureBox4; 
      Slots[4] = pictureBox5; 
      Slots[5] = pictureBox6; 
      Slots[6] = pictureBox7; 
      Slots[7] = pictureBox8; 
      Slots[8] = pictureBox9; 

      //array for used slots 
      bool[] SlotsUsed = new bool[9]; 
      for (int i = 0; i != (SlotsUsed.Length); i++) 
      { 
       SlotsUsed[i] = false; 
      } 
     } 
    } 
}

編輯：我不似乎能夠發表評論，出於某種原因，所以我只是在這裏問。我將如何將數組聲明爲實例變量而不是本地？實例變量是否有另一個我可能知道的名字？

歡呼

來源

2012-07-16 Tony Gildea

您可以參考[此（作用域在MSDN（C＃））]（http://msdn.microsoft.com/en-us/ library/aa691132（v = vs.71）.aspx） – 2012-07-16 16:02:14