/// <summary>
/// Ends an asynchronous read operation.
/// </summary><param name="result">
/// An IAsyncResult that represents an asynchronous call started by
/// BeginReadFinite.
/// </param>
protected override void EndReadFinite(IAsyncResult result)
{
try
{
uint[] data = Reader.EndReadSingleSamplePortUInt32(result);
Digital_InputComponentReadCompletedEventArgs args = new Digital_InputComponentReadCompletedEventArgs(data);
RaiseGenericEventAsync(result, OnReadCompleted, args);
}
#region Debugger Exception Warnings
catch (DaqException ex)
{
// If you Dispose the component while an asynchronous DAQ operation
// is still running, the component may already be disposed or may be in the
// process of disposing when this method is called. Depending on timing, this situation
// will result in one of the three errors below. This is expected behavior.
//
// DaqExceptions are processed by the caller of this method in the
// NationalInstruments.DAQmx.ComponentModel class library. However, by default,
// the Visual Studio debugger intercepts these exceptions and breaks
// the debugger when they occur.
//
// Because these exceptions do not represent errors, they are caught and safely discarded
// here.
if (ex.Error != -200088 && ex.Error != -88709 && ex.Error != -88710)
{
throw;
}
}
#endregion
}
/// <summary>
/// Raises the ReadCompleted event.
/// </summary><param name="e">
/// The event arguments of the ReadCompleted event.
/// </param>
protected virtual void OnReadCompleted(Digital_InputComponentReadCompletedEventArgs e)
{
RaiseGenericEventDirect(EventReadCompleted, e);
}