/// <summary>
/// Returns current column index in GTable cols collection
/// </summary>
/// <param name="table"></param>
/// <param name="col"></param>
/// <returns></returns>
public static int GetColumnIndex(this GTable table, GColumn col)
{
return table.cols.IndexOf(col);
}
/// <summary>
/// Adds a column of type GColumn
/// </summary>
/// <param name="col"></param>
/// <returns>self</returns>
public GTable AddColumn(GColumn col)
{
cols.Add(col); return this;
}