public static SeparatorDataStore GetInstance()
{
if (theDataStore == null)
{
try
{
theDataStore = new SeparatorDataStore();
}
catch
{
theDataStore = null;
}
}
return(theDataStore);
}
public void RetrieveMRU_Statistics()
{
// To do this, retrieve persisted data (if any) and update the MRU field
// of any protocol for which we have a matching protocol ID.
using (SeparatorDataStore persistedDataStore = new SeparatorDataStore())
{
try
{
string protocolsPath = GetProtocolsPath();
string protocolsXmlFileName = protocolsPath + @"\" + theProtocolsInfoBaseFilename + theProtocolsInfoFilenameExtenstion;
if (File.Exists(protocolsXmlFileName))
{
persistedDataStore.EnforceConstraints = false;
persistedDataStore.ReadXml(protocolsXmlFileName);
foreach (ProtocolRow persistRow in persistedDataStore.Protocol)
{
// 03/14/06 MRU fix
// Create a filter string to lookup protocols based on the Protocol Instrument
// Control ID (a unique hash code based on the protocol name).
string filter = string.Format("ProtocolInstrumentControlId={0}",
persistRow.ProtocolInstrumentControlId);
// Search for a match between the persisted list of protocols and the
// current list of protocols returned from the instrument control layer.
// We need to do this lookup in case someone has added or deleted protocol
// files from the protocol directory since last running the application.
ProtocolRow[] pRows = (ProtocolRow[])theDataStore.Protocol.Select(filter);
if (pRows.GetLength(0) == 1)
{
ProtocolRow pRow = pRows[0];
if (pRow != null)
{
pRow.ProtocolUsageCount = persistRow.ProtocolUsageCount;
pRow.ProtocolUsageTime = persistRow.ProtocolUsageTime;
}
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
}