How to create onclick event for ASP.NET button in C# ASP.NET code behind visual studio 2017

My asp.net button is created at code behind and i require onclick event should be generate. This onclick event is created but not firing when button clicks at run time. I have given break point at opening braces of button click event

What I have tried:

Button ButtonFinish = new Button()
{
    Text = "Finish"
};
ButtonFinish.Attributes.Add("class", "btn btn-group-toggle btn-primary");
ButtonFinish.Style["margin-bottom"] = "10px";
ButtonFinish.Attributes.Add("runat", "server");
ButtonFinish.Click += new EventHandler(this.ButtonFinish_Click);

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

Tags: C#, ASP.NET, Visual Studio 2017, Buttons