Declaring a CLICK event. ASPX vs Code behind.. how are these 2 different ?

Question

in .ASPX this is working

<asp:ImageButton ID="lbHope6" runat="server" ImageUrl="~/Shared/Images/Site/ChartTypeProd.png"
CssClass="chart" OnClick="lbHope6_Click" />

 protected void lbHope6_Click(object sender, ImageClickEventArgs e)
    {
        EventArgs args = new EventArgs();

        if (Hope6 != null)
            Hope6(this, args);
    }

but when I do it this way it acts differently.. any ideas?? ive given up hope

 LinkButton lb = new LinkButton();
                lb.Text = s.Key.ToString();
                lb.Click += new EventHandler(lbHope6_Click);
                sourceNameCell.Controls.Add(lb);

   protected void lbHope6_Click(object sender, EventArgs e)
    {
        EventArgs args = new EventArgs();

        if (Hope6 != null)
            Hope6(this, args);
    }

Answer 1

You're creating the new link button and assigning an eventhandler every time the page loads (including on postback). .Net won't understand that the LinkButton you create on postback is in fact the LinkButton you created when the page was first called. Your first code sample was fine.