C# Discussion Boards - CodeProject

2-May-17 1:36

Hello,
I have several data collecting points, each connected to different equipment type; i.e. WorkStation A with DataCollector type DC2, WS B with DC3, WS C with DC2 etc... Each data collector having different protocols.
It is my intention to write a DLL for each DC type with a getData() function in a uniform way, and thus encapsulate communication details for each type.
The idea is to have a config file with the local DC type for each station and link the proper DLL at runtime.
Is that possible?

Thank you,

modified 2-May-17 7:41am.

Richard MacCutchan2-May-17 2:22

Richard MacCutchan

2-May-17 2:22

icristut wrote:
Is that possible?

Yes.

icristut2-May-17 2:29

2-May-17 2:29

Well... thank you, I guess...
Should I post another one with "How" ??

Richard MacCutchan2-May-17 2:35

Richard MacCutchan

2-May-17 2:35

Well your question is not very clear. If you know how to create the DLL, and you know how your applications can access the config data, and you know how to load a DLL at runtime ... then it should be quite simple. But maybe you have an actual programming question.

icristut2-May-17 4:29

2-May-17 4:29

I don't know how to link to a specific DLL at runtime. Thank you.
I actually didn't know WHAT to google Smile | :)

Pete O'Hanlon2-May-17 4:38

Pete O'Hanlon

2-May-17 4:38

icristut wrote:
WHAT to google

C# plugin frameworks.

This space for rent

icristut2-May-17 4:44

2-May-17 4:44

Thank you

Dave Kreskowiak2-May-17 4:16

Dave Kreskowiak

2-May-17 4:16

I take it you know about interfaces, writing code to implement them, and how plugin frameworks work, correct?

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Dave Kreskowiak

ZurdoDev2-May-17 4:38

ZurdoDev

2-May-17 4:38

The term is Reflection. Here's an example, reflection - Loading DLLs at runtime in C# - Stack Overflow[^]

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icristut2-May-17 4:41

Help to convert C into C#

2-May-17 4:41

Thank you!

Form Designer

Mangesh Sachane2-May-17 1:15

Mangesh Sachane

2-May-17 1:15

Hi Dev,

I am using your form designer, it's too good for me. I just want to know about Form Designer is that,
how can i develop the same with your demo source. I need the complete source, how can i get the same. Please suggest.

Thanks
Mangesh Sachane.

Re: Form Designer

Pete O'Hanlon2-May-17 1:35

Pete O'Hanlon

2-May-17 1:35

Mangesh, I think you are slightly confused. You have posted this question in the general C# forum but it reads to me like you are asking about the functionality in a particular article. The articles have forums at the end - you should ask your question there as that's the best chance you have of the article writer actually seeing your question.

This space for rent

Re: Form Designer

Jochen Arndt2-May-17 1:38

Jochen Arndt

2-May-17 1:38

If you refer to an article you should post your question in the related forum (scroll down to the bottom of the article).

CodeProject is a community of nearly 13 million members where some of them have written articles. It is rather improbable that the author of a specific article reads your post here and recognises that it is about his article.

Vulaye1-May-17 22:52

Vulaye

1-May-17 22:52

Hi,

I come here because I need help to convert a C code into a C# code.

This is the C code which consists of eliminating aberrant values of a serie of data, then smoothing the data.

int main(int argc, char *argv[])
{
  int   i, i1, n, low, high, filter=2, ntime=20 ;
  double time[20]={20.0,48.0,42.3,39.9,39.0,41.4,44.0,52.0,53.1,49.7,42.0,40.1,100.0,45.0,50.0,47.0,43.1,41.0,39.0,42.2};
  double average[20]={0.0},difference[20]={0.0},averagedif[20]={0.0}, localaverage ;
  double timeresult[20], smoothing[20]={0.0};
 
 
  /* 
   * Calculation of moving average (on 5 values) and difference
   */
  for ( i = 0 ; i < ntime ; i++ ) {
    low = i - filter ;
    high = i + filter ;
 
    if ( low < 0 ) low = 0 ;
    if ( high >= ntime ) high = ntime ;
 
    n = 0 ;
    for ( i1 = low ; i1 < high ; i1++ ) {
      average[i] = average[i] + time[i1] ;
      n = n + 1 ;
    }
    average[i] = average[i] / (double)n ;
    difference[i] = average[i] - time[i] ;
  }
 
  /* 
   * Calculation of average of the differences and replacement of aberrant peaks */
  for ( i = 0 ; i < ntime ; i++ ) {
    low = i - filter ;
    high = i + filter ;
 
    if ( low < 0 ) low = 0 ;
    if ( high >= ntime ) high = ntime ;
 
    n = 0 ;
    for ( i1 = low ; i1 < high ; i1++ ) {
      averagedif[i] = averagedif[i] + difference[i1] ;
      n = n + 1 ;
    }
    averagedif[i] = averagedif[i] / (double)n ;
 
    /* Test in function of the distance between difference and difference's average */
    if ( fabs(difference[i]) < fabs(averagedif[i]) )
      timeresult[i] = time[i] ;
    else {
      /* New calculation of average without the central point */
      /* Only if the differences on one hand and on the other hand are in the same direction */
      if ( i != 0 && i != (ntime-1) ) {
	if ( (difference[i]*difference[i-1] < 0.0) && (difference[i-1]*difference[i+1] > 0.0)) {
	  localaverage = 0.0 ;
	  n = 0 ;
	  for ( i1 = low ; i1 < high ; i1++ ) {
	    if ( i1 != i ) {
	     localaverage = localaverage + time[i1] ;
	      n = n + 1 ;
	    }
	  }
	  localaverage = localaverage / (double)n ;
	  timeresult[i] = localaverage ;
	}
	else
	  timeresult[i] = time[i] ;
      }
      else
      timeresult[i] = time[i] ;
    }
  }
 
 
  /* 
   * Calculation of the final smoothing (on 3 values) after eliminating aberrant peaks */
  for ( i = 0 ; i < ntime ; i++ ) {
    low = i - filter ;
    high = i + filter ;
 
    if ( low < 0 ) low = 0 ;
    if ( high >= ntime ) high = ntime ;
 
    n = 0 ;
    for ( i1 = low ; i1 < high ; i1++ ) {
      smoothing[i] = smoothing[i] + timeresult[i1] ;
      n = n + 1 ;
    }
    smoothing[i] = smoothing[i] / (double)n ;
  }
 
  /* Print */
  fprintf ( stdout, "\n T\taverage\tdifference\taveragedif\tT result\tSmoothing\n");
  for ( i = 0 ; i < ntime ; i++ )
    fprintf ( stdout, "\n %g\t%g\t%g\t%g\t%g\t%g",time[i],average[i],difference[i],averagedif[i],timeresult[i],smoothing[i]);
 
  /* Print in file */
  writefich ( time, 20, "Input.dat" );
  writefich ( timeresult, 20, "Output.dat" );
  writefich ( smoothing, 20, "Smoothing.dat" );
 
 
  return 1 ;
}

Do you have some suggestions to help me to convert this C code into C# ?

Thanks in advance !

Wink | ;)

Jochen Arndt1-May-17 23:19

Jochen Arndt

1-May-17 23:19

This site does not provide code conversion services.

But there should be no problems to convert the calculations. Besides the variable declarations that code portions can be used as they are.

To print to the console use Console.WriteLine(). The C %g format corresponds to the default C# floating point format. If you need other formats use for example Double.ToString(string format).

The code for writefich() is not shown. So I can only guess that it writes raw data (binary) arrays to a file. If so, use the BinaryWriter class (see BinaryWriter.Write Method (Double) (System.IO)[^]). If the files are text files use the TextWriter class instead.

OriginalGriff1-May-17 23:35

OriginalGriff

1-May-17 23:35

Jochen has covered the mechanics, but the general principle is: don't even try. You get away with it for this code, but most C and C++ code is not suitable for a conversion process - you can get working code at the end, but the code you get is not "good" C# - it's generally pretty poor because C#has built in ways to do things.

Finding a lump of code on the internet that does a similar job and converting it to your language is not normally a good solution: look at the algorithm it is using and rewrite it in the target language instead.

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Vulaye1-May-17 23:43

Vulaye

1-May-17 23:43

Thanks for your answers !

I understand that it's not perfect to convert directly C into C# but I don't know how works C# so it's pretty difficult. I'm going to see what I can do.