test.cs

using TXTextControl;

using (ServerTextControl tx = new ServerTextControl())
{
    tx.Create();

    // reusing the table cell format
    TableCellFormat tableCellFormat = new TableCellFormat()
    {
        BottomBorderWidth = 1,
        TopBorderWidth = 1,
        LeftBorderWidth = 1,
        RightBorderWidth = 1
    };

    // add a table
    tx.Tables.Add(5, 5, 10);

    Table table = tx.Tables.GetItem(10);

    // select first cell
    table.Cells[1, 1].Select();
    tx.Selection.Length = 0;

    // insert a nested table
    tx.Tables.Add(2, 2);

    // set text in nested table
    foreach (TableCell cell in table.NestedTables[1].Cells)
    {
        cell.Text = "nested";
        cell.CellFormat = tableCellFormat;
    }

    // set text and format in main table
    foreach (TableCell cell in table.Cells)
    {
        if (cell.Text == "")
            cell.Text = "main";

        cell.CellFormat = tableCellFormat;
    }

    tx.Save("results.pdf", StreamType.AdobePDF);
}