獲取圖片框的數組的索引點擊

Question

我創建動態的一些圖片框和圖片框單擊事件如下

Image myImage = Image.FromFile("image/Untitled6.png"); 
PictureBox[] txtTeamNames = new PictureBox[5];   

for (int i = 0; i < txtTeamNames.Length; i++) 
{ 
    var txt = new PictureBox(); 
    txtTeamNames[i] = txt;     
    txtTeamNames[i].Image = myImage;     
    txtTeamNames[i].Height = 53; 
    txtTeamNames[i].Width = 48;     
    this.panel1.Controls.Add(txtTeamNames[i]);     
    txtTeamNames[i].Visible = true; 
    txtTeamNames[i].Click += new EventHandler(this.clcikeventhandle); 
} 

當用戶點擊任一圖片框，我怎麼找到它的數組索引和名稱？

void clickEventHandler(object sender, EventArgs e) 
{   
    //??? 
} 

Answer 1

您可以通過sender參數訪問PictureBox。所以，試試這個：

PictureBox[] txtTeamNames; 

void YourMethod() 
{ 
    Image myImage = Image.FromFile("image/Untitled6.png"); 
    txtTeamNames = new PictureBox[5];   
    //The same as your code 
} 

void clcikeventhandle(object sender, EventArgs e) 
{   
    int index = txtTeamNames.IndexOf(sender As PictureBox); 
} 

編輯：方法2

但是，如果你不滿意宣佈數組中的類範圍，你可以試試這個方法：

//Same as your code 
for (int i = 0; i < txtTeamNames.Length; i++) 
{ 
    //Save as your code 
    txtTeamNames[i].Tag = i;      // ADD THIS LINE 
} 

然後：

void clcikeventhandle(object sender, EventArgs e) 
{    
    int index = int.Parse((sender As PictureBox).Tag.ToString()); 
} 

Answer 2

另一個建議 - 創建一個自定義類，它從PictureBox繼承。它將有一個額外的Index財產。你可以將其設置這兩條線之間：

txtTeamNames[i].Visible = true; 
//assign the index here 
txtTeamNames[i].Click += new EventHandler(this.clcikeventhandle); 

像這樣：

txtTeamNames[i].Index = i; 

然後在處理程序：

void clickEventHandle(object sender, EventArgs e) 
{ 
    PictureBox pbox = sender As PictureBox; 
    int index = pbox.Index(); 
    string name = pbox.Name(); 
} 

你不停的變量範圍相同，這可能是如果你關心它，這很有用。如果您將txtTeamNames的範圍升級到課程級別，請參閱another answer by Hossein Narimani Rad。

Answer 3

namespace your_name_project 
{ 
    public partial class Form_Begin : Form 
    { 
     PictureBox[] pictureBoxs = new PictureBox[6]; 
     public Form_Begin() 
     { 
      InitializeComponent(); 
      pictureBoxs[0] = pictureBox1; pictureBoxs[1] = pictureBox2; pictureBoxs[2] = pictureBox3; 
      pictureBoxs[3] = pictureBox4; pictureBoxs[4] = pictureBox5; pictureBoxs[5] = pictureBox6;  
     } 
//continue 
     List<PictureBox> pictureBoxes = new List<PictureBox>(); 

      private void buttonX1_Click(object sender, EventArgs e) 
      { 
       for (int i = 0; i <3; i++) 
       { 
        pictureBoxs[i].Image =your_name_project.Properties.Resources.image_1;// load image1 and Image_2from resource in property of picturebox 
       } 
       for (int i = 3; i < 6; i++) 
       { 
        pictureBoxs[i].Image = your_name_project.Properties.Resources.Image_2; 
       } 
      } 
     } 
}