c# to vb .net (2005) help

c# to vb .net (2005) help

• Sai A

  Now I know why I code in C#.
  

• Tryin2Bgood

  The first "Exit Do" should be an "Exit For".

  But the problem is that you'll rarely have a while loop that can be easily converted to a VB 'For' loop. In general, there are many cases of "assignments within expressions" that have no direct VB equivalent (and some that have absolutely no equivalent).

  David Anton
  www.tangiblesoftwaresolutions.com
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• hotsauce

  Here's a VB equivalent:

  Do
  scan = scan + 1
  match = match + 1
  If window(scan) = window (match) Then
  scan = scan + 1
  match = match + 1
  If window(scan) = window (match) Then
  scan = scan + 1
  match = match + 1
  If window(scan) = window (match) Then
  scan = scan + 1
  match = match + 1
  If window(scan) = window (match) Then
  scan = scan + 1
  match = match + 1
  If window(scan) = window (match) Then
  scan = scan + 1
  match = match + 1
  If window(scan) = window (match) Then
  scan = scan + 1
  match = match + 1
  If window(scan) = window (match) Then
  scan = scan + 1
  match = match + 1
  If window(scan) = window (match) Then
  If scan < strend Then
  ' Do Nothing
  Else
  Exit Do
  End If
  Else
  Exit Do
  End If
  Else
  Exit Do
  End If
  Else
  Exit Do
  End If
  Else
  Exit Do
  End If
  Else
  Exit Do
  End If
  Else
  Exit Do
  End If
  Else
  Exit Do
  End If
  Else
  Exit Do
  End If
  Loop

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

  Thanks for the help.
  
  Javfarary
  
  

• chutachut

  what about the following converted code for vb I got it from other forums.
  what do you say any suggestions
  
  Do
  For i As Integer = 1 To 8
  scan += 1
  match += 1
  If window(scan) <> window (match) Then Exit Do
  Next
  If scan >= strend Then Exit Do
  ' Do Nothing
  Exit Do
  Loop
  
  Thanks
  Javfarary
  
  

• Cefa68000

  That is pretty ugly code. It's also pretty inefficient. Is there any reason why you are comparing 8 elements at a time

  Nevertheless VB does not have a prefix increment operator so ++scan would convert to scan = scan + 1. This is a statement and not an expression so you can't do it inside the array element either. In other words the code won't translate directly. Instead you need to break down the code to a simpler format and then convert it.
  
  Here is a first pass (I didn't test it):
  
  while (scan < strend && window[scan] == window[match])
  {
  ++scan;
  ++match;
  };

  You could also use a for loop. Here is a first pass using a format that would translate to VB (there are other formats that wouldn't):
  
  match = 0;
  for(scan = 0; scan < strend; ++scan)
  {
  ++match;
  if (window[scan] != window[match])
  break;
  };

  The while loop would translate to (not quite sure of the VB syntax):
  
  While (scan < strend) AndAlso (window(scan) = window(match))
  scan = scan + 1
  match = match + 1
  End While
  
  The for loop would translate to:
  
  For scan = 0 To strend - 1
  match = match + 1
  If window(scan) <> window(match)) Then
  Break
  End If
  Next

  If all you want to do is compare two portions of an array then there is the ArraySegment class in v2 that might be better for you.

  Michael Taylor - 12/22/06

  
  
• c# to vb .net (2005) help