Table and Session Variable

[Fishdawg65]

I have a website for .net 2.0.

I have a table named tblVariables. It should start out with 1 row of cells: "Name", "Variable", "Action(s)". That's not a problem.

The problem is:
I have a button that when pressed should add a TableRow to my table. Obviously I want to keep all of the same rows that are already in the table and just add this row.

Here's the code to add a row to my table and this works.

        TableRow tr = new TableRow();
        TableCell tc = new TableCell();
        TextBox tb = new TextBox();
        tb.Text = "Name";
        tc.Controls.Add(tb);
        tr.Cells.Add(tc);

        tc = new TableCell();
        tb = new TextBox();
        tb.Text = "Value";
        tc.Controls.Add(tb);
        tr.Cells.Add(tc);

        tc = new TableCell();
        Button btn = new Button();
        btn.Text = "Delete";
        btn.CommandName = "DeleteRow";
        btn.CommandArgument = tblVariables.Rows.Count.ToString();
        tc.Controls.Add(btn);
        tr.Cells.Add(tc);

        tblVariables.Rows.Add(tr);
        //Notice that I set the session variable here.
        Session["myTable"] = tblVariables;

Page Load - lblMsg tells me that I have the right amount of rows but I don't see any of the rows.

         if (!Page.IsPostBack)
        {
            Session.Clear();
            TableRow tr = new TableRow();
            TableCell tc = new TableCell();
            tc.Text = "Name";
            tr.Cells.Add(tc);
            tc = new TableCell();
            tc.Text = "Value";
            tr.Cells.Add(tc);
            tc = new TableCell();
            tc.Text = "Action(s)";
            tr.Cells.Add(tc);
            tblVariables.Rows.Add(tr);
            Session["myTable"] = tblVariables;
            lblMsg.Text = "Page Load: " + ((Table)Session["myTable"]).Rows.Count.ToString();
        }
        else if (Session["myTable"] != null)
        {
            lblMsg.Text = "Load Session: " + 
                ((Table)Session["myTable"]).Rows.Count.ToString() + "<br>";            
            tblVariables = ((Table)Session["myTable"]);
            lblMsg.Text += "Load tblVariables: " + 
                tblVariables.Rows.Count.ToString() + "<br>";
        }

I've also tried to use this code in that "else if" section but this doesn't work either. lblMsg says that I have 2 rows in my Session Table and only 1 in my tblVariables.

            lblMsg.Text = "Load Session: " + 
                ((Table)Session["myTable"]).Rows.Count.ToString() + "<br>"; 
            foreach (TableRow tr in ((Table)Session["myTable"]).Rows)
            {
                tblVariables.Rows.Add(tr);
            }
            lblMsg.Text += "Load tblVariables: " + 
                tblVariables.Rows.Count.ToString() + "<br>";

So how do I get this to work? I could do this within query string but I'd rather not. I was also thinking that I could do this with a DataSet and DataGrid but that seems like more work than it should be.