When I click this <a> link it will post back to my ASP.NET method. How can I do that?

Question

When I press this link it will post back to my method. How can I do that?

<li runat="server" onclick="log_out" >
    <a onclick="log_out" runat="server" href="LogIn.aspx" ><i class="icon_key_alt"></i> Log Out</a>
</li>

This is my method:

public void log_out(object sender, EventArgs e)
{
    try
    {
        int employeeid = Convert.ToInt32(Session["employeeid"].ToString());
        cl.log_out_activity(Convert.ToInt32(employeeid));
    }
    catch
    {
    }
}

Answer 1

What you have is a HyperLink so you can set the NavigateUrl like this:

<asp:HyperLink ID="HyperLink1" runat="server" 
        NavigateUrl="~Login.aspx">HyperLink</asp:HyperLink>

Then in the Page_Load of LogIn.aspx you will do whatever you need to.

If you want to go to a specific method then use LinkButton because it has OnClick property like this:

<asp:LinkButton 
  ID="Button1" 
  OnClick="log_out"
  runat="server"
  Text="Submit" />

If you want to do go to a specific method with HyperLink , you then have to use javascript. You can see this article on how to do it. Personally I would just use LinkButton :