Add column names to mapping.
The following sample demonstrates how to add columns when validating data (C# only, see also example in CurrentRow): [C#]
private void advancedList1_ValidateData(object sender, Resco.Controls.ValidateDataArgs e)
{
if (e.DataRow.FieldNames.GetOrdinal("BackColor") == -1)
e.DataRow.FieldNames.AddColumns(new string[] {"BackColor", "ForeColor"});
e.DataRow["ForeColor"] = Color.FromArgb((int)r["R"], (int)r["G"], (int)r["B"]);
e.DataRow["BackColor"] = Color.FromArgb(255-(int)r["R"], 255-(int)r["G"], 255-(int)r["B"]);
}
Mapping Class | Resco.Controls.AdvancedList Namespace