I finally figured this out. I wasn't approaching the problem correctly. I had to change my ASP code to be an ASP:Placeholder:

Then at the end of my code, instead of assigning the new table to the existing table (which is now gone), I replaced the placeholder control with the new table:

tblBrowserOSTable.Controls.Clear();
tblBrowserOSTable.Controls.Add(newTable);

I don't see any difference between the EnableViewState being set to "true" or "false". From reading the MSDN site, I think this needs to be "false" to update the view dynamically.

I have a table that is being dynamically generated based on selected fields from my form. However, after I have modified the table, I can't get it to display on the web page. What am I doing wrong or what else do I need to do to get the page to display correctly? ASP place holder:

(I have tried EnableViewState="false" too.) C# code:

protected void MakeBrowserOSTable(DataTable dtContents)
{
int numRows = dtContents.Rows.Count;
int numCells = dtContents.Columns.Count;

Table newTable = new Table(); // The table can totally change depending on the
                              // selection - so I want to rebuild it each time.

if ((numCells <= 0) || (numRows <= 0))
{
    TableRow row = new TableRow();
    TableCell cell = new TableCell();
    cell.Controls.Add(new LiteralControl("Please choose a platform"));
    row.Cells.Add(cell);
    newTable.Rows.Add(row);
}
else
{
    foreach (DataRow r in dtContents.Rows)
    {
        TableRow row = new TableRow();

        for (int c = 0; c < numCells; c++)
        {
            TableCell cell = new TableCell();

            if (c == 0)
            {
                Label lbl = new Label();
                lbl.Text = (string)r\[c\];
                lbl.Text = lbl.Text.Trim();
                cell.Controls.Add(lbl);
            }
            else
            {
                //add other controls here
            }
            row.Cells.Add(cell);
        }
        newTable.Rows.Add(row);
    }
}
tblBrowserOSTable = newTable;

}