problem in clicking button in runtime

protected void Page_Load(object sender, EventArgs e)
{
    //create image button
    ImageButton myImageButton = new ImageButton();
    myImageButton.ImageUrl = "myPicture.png";

    //set the click event - this event will be fired when the user clicks the image button
    myImageButton.Click += new ImageClickEventHandler(myImageButton_Click);
}

void myImageButton_Click(object sender, ImageClickEventArgs e)
{
    //your image button was clicked.
}