C# Button Not Firing?

I have an ASP Button that I am creating in the CodeBhind of a Control. Here is the code:

Button SubmitButton = new Button();
protected override void CreateChildControls()
{
SubmitButton.Text = "Submit";
SubmitButton.Click += new EventHandler(SubmitButton_Click);
}
private void SubmitButton_Click(object sender, EventArgs e)
{
CustomTabs.CreateNewTab();
}

The Click event won't fire, though. It appears like it does a postback and never hits the event.