在面板上動態添加按鈕和按鈕對象

Question

private void button1_Click(object sender, EventArgs e) 
{ 
    string a = textBox1.Text; 
    int h = Convert.ToInt32(a); 

    for (int i = 0; i <= h; i++) 
    { 
     buttonArray[i] = new Button(); 
     buttonArray[i].Size = new Size(60, 23); 
     buttonArray[i].Location = new Point(40,20); 
     panel1.Controls.Add(buttonArray[i]); 
    } 
} 

我的任務是如果用戶在文本框中輸入3。 3個按鈕應該動態創建並添加到面板如何做到這一點？我使用的按鈕陣列，請建議我

Answer 1

例如，你可以使用它。

private void button1_Click(object sender, EventArgs e) 
    { 
     panel1.Controls.Clear(); 
     string a = textBox1.Text; 
     int h = Convert.ToInt32(a); 

     for (int i = 0; i <= h; i++) 
     { 
      var btn = new Button {Size = new Size(60, 23), Dock=DockStyle.Left, Text=h.ToString() }; 
      btn.Click+= delegate(object sender, EventArgs e) { //your commands }; 
      panel1.Controls.Add(btn); 
     } 
    } 

Answer 2

在this post已經回答了類似的問題：

private void button1_Click(object sender, EventArgs e) 
    { 
     string a = textBox1.Text; 
     int h = Convert.ToInt32(a); 

     for (int i = 0; i <= h; i++) 
     { 
      var b = new Button { Size = new Size(60, 23), Location = new Point(4 + i * 57, 20), Text = string.Format("button{0}", i) }; 
      b.Click += b_Click; 
      panel1.Controls.Add(b); 
     } 
    } 

    void b_Click(object sender, EventArgs e) 
    { 
     throw new NotImplementedException(); 
    } 

它需要測試驗證，始終得到了衆多

string a = textBox1.Text; 

Answer 3

可使用列表更situable ？

List<Button>Buttons=new List<Buttons>(); 

private void button1_Click(object sender, EventArgs e) 
{ 
    Buttons.Clear(); 
    string a = textBox1.Text; 
    //here should be checking if "a" is digit and is not empty 
    int h = Convert.ToInt32(a); 

    for (int i = 0; i <= h; i++) 
    { 
     Button btn=new Button(); 
     btn.Parent=panel1; 
     btn.Size=new Size(60, 23); 
     btn.Location = new Point(40,5+25*i); //arrange verically 
     btn.Text = "Button "+i.ToString(); 
     btn.Click+=btn_Click; 
     btn.Tag="Some Value you want to restore after button click"; 

     Buttons.Add(btn) 
    } 
}