public void FindContextRow(string context)
{
	CurrencyManager cm = (CurrencyManager)dataGrid1.BindingContext[dataGrid1.DataSource, dataGrid1.DataMember];
	DataView dv = (DataView) cm.List;

	string query = string.Format("Convert({0}, 'System.String') LIKE '{1}%'", FieldName, context);

	DataRow[] rows = Fdt.Select(query, dv.Sort);
	if (rows.Length > 0)
	{
		DataRow[] tempRows = new DataRow[Fdt.Rows.Count];
		Fdt.Rows.CopyTo(tempRows, 0);
		int index = Array.IndexOf(tempRows, rows[0]);

		cm.Position = index;
	}
}