AnalogWaveform creation error

[Kevin2]

Hi,

I want to create a waveformgraph and i use the part of the code below:

private AnalogWaveform<double> CreateWaveformFromData(DateTime[] timeStamps, double[] data)
{
   try
   {
      AnalogWaveform<double> wave;
      wave = AnalogWaveform<double>.FromArray1D(data);
      wave.Timing = WaveformTiming.CreateWithIrregularInterval(timeStamps);
      return wave;
   }
   catch (Exception ex)
   { ex = ex; return null; }
}

The compilation passed, but when i run the code to "wave = AnalogWaveform<double>.FromArray1D(data);"

I got a exception: [System.TypeInitializationException] = {"The type initializer for 'NationalInstruments.PrecisionWaveformTiming' threw an exception."}

Here, i don't think i define the waveform timing here, why do i receive this type initialization error?

Thanks a lot!

Kevin

[Kyle_M]

Kevin,

Is this error occurring on the development computer or the deployment machine? Which version(s) of MS and VS are you using, and on which OS? 

Regards,

Kyle Mozdzyn

Applications Engineering

National Instruments

[Kevin2]

It's in development computer. WinOS: Win7, MS: visual studio 2010, VS: visual studio 8.0.1

Thanks!

Kevin

[Online_Courses]

Kevin,

Is this happening every time you try to create a waveform or only when in a specific program? 

Regards,

Kyle Mozdzyn

Applications Engineering

National Instruments

[Kevin2]

Yes, it happen every time.

Actually we don't need make things complicated. I just want to draw a simple graph by x array and y array. The x values should be DateTime values.

I use this kind of control long time ago. we use ActiveX control that time. I remember the method something like plotXY(x array, y array) is ok. But the rule looks like changed for the new version MeasurementStudio. If you have similiar example code i can borrow, that will be good. 🙂

Thanks!

Kevin