private void LlenarLista(SharpMap.Data.Providers.IProvider iProvider, System.Collections.Generic.Dictionary<string, bool> Lista)
{
SharpMap.Data.FeatureDataSet fds = new SharpMap.Data.FeatureDataSet();
iProvider.ExecuteIntersectionQuery(iProvider.GetExtents(), fds);
foreach (System.Data.DataRow row in (fds.Tables[0] as System.Data.DataTable).Rows)
{
Lista[row["Transponder"].ToString()] = true;
}
}