Need help converting VB to C#

Need help converting VB to C#

• yosonu

  Yes - you're right about that.

  However, you might want to check that array declaration - it has a one-off error in addition to not being compilable.

  David Anton
  www.tangiblesoftwaresolutions.com
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• softwarejaeger

  you are correct, thanks for that :-)
  
  

• Saitham8

  It may help you in some cases. In the current case (the original post sample) it bombs.

  David Anton
  www.tangiblesoftwaresolutions.com
  Instant C#: VB to C# converter
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• Simon Bowles UK

  it was done in my last post James :-)

  There are a few ways to initialize the arrays, which both have been posted

  
  
  

• Sunath

  I'll give it a shot. Remember there is a button click event there so drag and drop a button and double click to make the event. Then in this button click event:

  MessageBox.Show(this.Modulo10(this.TextBox1.Text).ToString())

   

  the function:

   

  private int Modulo10(string strNumber) {    int[] intTable = new int[10];    int intTransfer = 0;    int intIndex = 0;      intTable[ 0] = 0;    intTable[ 1] = 9;    intTable[ 2] = 4;    intTable[ 3] = 6;    intTable [ 4] = 8;    intTable [ 5] = 2;    intTable[ 6] = 7;    intTable[ 7] = 1;    intTable[ 8] = 3;    intTable[9] = 5;      for(int counter = 0 to strNumber.Length - 1)    {       intTransfer = intTable[intTransfer + Convert.ToInt32(strNumber.SubString(counter, 1))] % 10;    }      return 10 - intTransfer % 10; }

   

  the bold line I'm unsure of but gave it my best shot.

  
  
  

• enric vives

  >> However, you might want to check that array declaration - it has a one-off error in addition to not being compilable.

  Actually, it's your code that's making the array one bigger than necessary -- but then, the error was in the original (probably a C programmer writing in VB), so we'll let that pass.

  However, you both sem to be missing the obvious when it comes to the array:

  int[] intTable = {0,9,4,6,8,2,7,1,3,5};

  Further, since we are only plucking one character at a time at of the string, we can use the indexer (strNumber[counter])--- Or, better yet, the enumerator:

  foreach (char c in strNumber)
  {
  intTransfer = intTable[(intTransfer + Convert.ToInt32(c.ToString())) % 10] ;
  }

  (Unfortunately, I still had to convert the char back into a string because ToInt32("0") == 0, while ToInt32('0') == 48 (it's ascii value))

  (also, ahmedilyas, note that the "% 10" has to go inside the brackets)

  
  
  

• LouisVanAlphen

  I also have this code in C/C++

  int modulo10(const char* lpszNumber)
  
  // 'lpszNumber' can only be digits between 0 und 9!
  
  static const int nTable[] = { 0, 9, 4, 6, 8, 2, 7, 1, 3, 5 };
  int nTransfer = 0;
  
  while (*lpszNumber)
  {
  nTransfer = nTable[(nTransfer + *lpszNumber - '0') % 10];
  ++lpszNumber;
  }
  
  return (10 - nUebertrag) % 10;
  }
  

  So maybe this will help getting this into C#.

  Thanks again

  James

  
  
  

• mbeninca

  Yes - our converters don't have built-in refactoring and optimization

  David Anton
  www.tangiblesoftwaresolutions.com
  Instant C#: VB to C# converter
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• dag.loraas

  No, my question is still not answered because I still cannot get rid of the error messages.
  
  

• OmegaMan

  Thanks for helping ahmedilyas.

  Using your suggestion, I get the following errors:

  ahmedilyas wrote:

  for(int counter = 0 to strNumber.Length - 1)

  VS2005 says the "to" and the "strNumber" ;expected

  I am also using a message box coded as below:

  private void button1_Click(object sender, EventArgs e)

  {

  MessageBox.Show(Modulo10(TextBox1.Text));

  }

  But here it says:

  Error 4 Argument '1': cannot convert from 'int' to 'string' and

  Error 3 The best overloaded method match for 'System.Windows.Forms.MessageBox.Show(string)' has some invalid arguments

  How can I fix this

  Thanks to everyone for helping........

  
  

  
  
  

• VuaCorona

  Is your question answered or not
  
  

• GPinNY

  David:

  intTransfer = intTable[(intTransfer + strNummer.Substring(intIndex - 1, 1)) % 10];
  

  would produce an error when compiling - since SubString returns a string but the intTransfer is an integer variable :-) So place Convert.ToInt32() around the strNummer and before the % as in my attempted solution.

  I guess overall it maybe:

   

  private int Modulo10(string strNumber)
  {
     int[] intTable = new int[10];
     int intTransfer = 0;
     int intIndex = 0;
   
     intTable[ 0] = 0;
     intTable[ 1] = 9;
     intTable[ 2] = 4;
     intTable[ 3] = 6;
     intTable [ 4] = 8;
     intTable [ 5] = 2;
     intTable[ 6] = 7;
     intTable[ 7] = 1;
     intTable[ 8] = 3;
     intTable[9] = 5;
   
     for(int counter = 0 to strNumber.Length - 1)
     {
        intTransfer = intTable[intTransfer + Convert.ToInt32(strNumber.SubString(counter, 1)) % 10];
     }
   
     return (10 - intTransfer) % 10;
  }
  

  
  
  

• Mike Uttormark

  Hai friend

  this site will really help u

  http://www.developerfusion.co.uk/utilities/convertvbtocsharp.aspx

  Regards

  Ratheesh

  
  
  

• ooh_flirty

  Instant C# produces the following (note that array sizes are used in C# declarations, not upper bound):

  //TODO: INSTANT C# TODO TASK: Insert the following converted event handlers at the end of the 'InitializeComponent' method for forms or into a constructor for other classes:
  Button1.Click += new System.EventHandler(Button1_Click);

   private void Button1_Click(object sender, System.EventArgs e)
   {
    MessageBox.Show(Modulo10(TextBox1.Text));
   }

   private int Modulo10(string strNummer)
   {

    //strNummer may only contain numbers between 0 und 9!

    int[] intTable = new int[11];
    int intTransfer = 0;
    int intIndex = 0;

    intTable[0] = 0;
    intTable[1] = 9;
    intTable[2] = 4;
    intTable[3] = 6;
    intTable[4] = 8;
    intTable[5] = 2;
    intTable = 7;
    intTable[7] = 1;
    intTable = 3;
    intTable[9] = 5;

    for (intIndex = 1; intIndex <= strNummer.Length; intIndex++)
    {
     intTransfer = intTable[(intTransfer + strNummer.Substring(intIndex - 1, 1)) % 10];
    }

    return (10 - intTransfer) % 10;

   }

  }
  

  David Anton
  www.tangiblesoftwaresolutions.com
  Instant C#: VB to C# converter
  Instant VB: C# to VB converter
  Instant C++: C# to C++ converter, VB to C++ converter
  Instant Python: VB to Python converter
  

  
  
  
• Need help converting VB to C#