/// <summary>
/// Establish measurement key cache based on received meta-data.
/// </summary>
/// <param name="metadata">Meta-data received from a subscription.</param>
/// <param name="instanceName">Instance name of the historian.</param>
/// <remarks>
/// If you want the <see cref="IMeasurement.Key"/> values that are returned from a <see cref="GetHistorianData"/> query
/// to have properly assigned Guid based signal IDs, i.e., <see cref="MeasurementKey.SignalID"/>, establish the
/// measurement key cache as soon as you have received meta-data from a GEP subscription query.
/// </remarks>
public static void EstablishMeasurementKeyCache(DataSet metadata, string instanceName)
{
// Check to see if data for the "MeasurementDetail" table was included in the meta-data
if (metadata.Tables.Contains("MeasurementDetail"))
{
// Establish default measurement key cache
foreach (DataRow row in metadata.Tables["MeasurementDetail"].Rows)
{
MeasurementKey.CreateOrUpdate(Guid.Parse(row.Field <object>("SignalID").ToString()), instanceName, row.Field <uint>("PointID"));
}
}
}
