Add rows to asp table web control dynamically

Came across this 'constraint' recently and was amazed to find not much solution exist in .net world for this.

Requirement: Add rows dynamically to an asp table, web control(or say dynamically you want to keep on adding controls on click / some event)

Issue: I was able to add row but previously added row 'vanishes' from UI

Reason: Viewstate of dynamically created control is lost on next post back

Solution:

Added a session to store state of table and to render/recreate the control on post back

code as below in page_load event

if (Session["rowList"] == null)
{
//No row list, Create it.
rowList = new List();
}
else
{
rowList = (List)Session["rowList"];
}
//Recreate the table. (Prevents loosing data already entered into textboxes.)
DisplayTable();

There is an addrow method called on click (/ any event you like )
You have to add our newly formed row to our row List as below.

rowList.Add(tableRow);
Then save our Row List on to the session
Session.Add("rowList", rowList);
Call the DisplayTable();

Finally recreating table as below in DisplayTable function

protected void DisplayTable()
{
//Run through the row list, and add each one to the Table's Row Collection.
foreach (TableRow tr in rowList)
Table1.Rows.Add(tr);
}

Any other suggestion / idea you have please post it here....coz i am still not convinced by this idea :(