Question

Im creating some buttons based on a value of some runtime variable (i dont even know how many).

My code for the button is as follows:

Button cancel = new Button();
            cancel.Text = "Cancel";
            cancel.ID = "cancelEnrollmentForStudent" + zapsanePredmetyList.ElementAt(i).ID.ToString() + "-" + i ;
            cancel.Click += new EventHandler(cancelEnrollment);
            string toCancel = selectedSubject.SelectedValue + ";" + studentToEnroll.SelectedValue;
            cancel.CommandArgument = toCancel;

while the code for the click method is

protected void cancelEnrollment(object sender, EventArgs e)
    {
        //do something when button clicked. 
        Button sourceButton = (Button)sender;
        string[] data = sourceButton.CommandArgument.Split(';');
    }

However, the click method is not firing up when the button is clicked. I suppose this has something to do with the fact, that I build the button at runtime. Cld someone advise on how to get this method fire up?

Thanks,
Ondrej

Answer 1

You have to override OnInit add the code in OnInit method.

protected override void OnInit(EventArgs e) 
{
    base.OnInit(e);
    Button btn = new Button();
    btn.ID = "btn1";
    btn.Text = "Button1";   
    btn.Click += new EventHandler(btn_Click);
    this.form1.Controls.Add(btn);
}

void btn_Click(object sender, EventArgs e)
{     
    Button bt = (Button)sender;
    bt.Text = "Changed";        
}