Event Handler performance

Question

I have a performance problem. I create 100 new buttons and I want to assign an Click Event Handler. I execute this code for about 100 times:

Buttons[i].Button.Cl         


        

Answer 1

I tried this:-

  public partial class Form1 : Form
  {
    List buttonList = new List();
    public Form1()
    {
      for (int n = 0; n < 100; n++)
      {
        Button tempButt = new Button();
        tempButt.Top = n*5;
        tempButt.Left = n * 5;
        this.Controls.Add(tempButt);
        buttonList.Add(tempButt);
      }
      var stopwatch = new Stopwatch();
      stopwatch.Start();
      foreach (Button butt in buttonList)
      {
        butt.Click += new System.EventHandler(button1_Click);
      }
      stopwatch.Stop();
      Console.WriteLine(stopwatch.ElapsedMilliseconds);
    }

    private void button1_Click(object sender, EventArgs e)
    {
      Console.WriteLine("Cheese");
    }
  }

All the buttons appear and the events seem to fire correctly, the event handler assignment is too fast to measure sensibly. Far less than a second on my machine.

Perhaps the problem lies elsewhere?