/// <summary>Returns the value before the script assignment</summary>
public Nullable <int> GetPreconditionValue(IIntProperty property)
{
IPropertyValue propertyValue = GetPreconditionPropertyValue(property);
IIntPropertyValue intPropertyValue = propertyValue as IIntPropertyValue;
Nullable <int> result = intPropertyValue.Value;
return(result);
}
private Nullable <int> GetScriptOrPreconditionValue(IIntProperty property, bool ifNotFoundReturnPreconditionValue)
{
Nullable <int> result = null;
IPropertyValue propertyValue = GetPropertyValue(property);
if (propertyValue == null)
{
if (ifNotFoundReturnPreconditionValue)
{
result = GetPreconditionValue(property);
}
return(result);
}
IIntPropertyValue intPropertyValue = propertyValue as IIntPropertyValue;
result = intPropertyValue.Value;
return(result);
}
/// <summary>
/// OnTransferPfToRun is called when the previously preflighted instrument method is actually started.
/// </summary>
/// <param name="args">The PreflightEventArgs contain the IRunContext with the ProgramSteps.</param>
private void OnTransferPfToRun(PreflightEventArgs args)
{
m_MyCmDevice.AuditMessage(AuditLevel.Message, "OnTransferPreflightToRun handler OnTransferPfToRun, please wait...");
// We use the IProgramStep interface to walk the list of events in the instrument method.
// In a real driver we would need to build some kind of time table and send it to the hardware.
// In this example we create a list instead and write it to the audit trail.
// Note that the property is not updated, as this would be done asynchronously during the run.
StringBuilder sb = new StringBuilder("Table of timed events:\n");
foreach (IProgramStep step in args.RunContext.ProgramSteps)
{
IPropertyAssignmentStep propertyAssignment = step as IPropertyAssignmentStep;
if (propertyAssignment != null)
{
if (propertyAssignment.Value.Property == m_EventAProperty ||
propertyAssignment.Value.Property == m_EventBProperty)
{
IIntPropertyValue value = propertyAssignment.Value as IIntPropertyValue;
sb.Append("Retention ");
sb.Append(step.Retention.Minutes.ToString("F3"));
sb.Append(": ");
sb.Append(propertyAssignment.Value.Property.Name);
sb.Append("=");
sb.Append(value.Value.ToString());
sb.Append("\n");
}
}
}
m_MyCmDevice.AuditMessage(AuditLevel.Message, sb.ToString());
m_MyCmDevice.AuditMessage(AuditLevel.Message, "OnTransferPreflightToRun handler OnTransferPfToRun has finished.");
}
