problem with double and single quotes in string

Hi,

I have a problem with double and single quotes in a string.

I have a textbox where i take a string from.
In the textbox are double quotes and single quotes quotes.
Problem is that if i return the string all the single quotes are replaced by double quotes.
How can i get it to keep the single quotes as single quotes?

Thanks in advance

Single quotes don't turn into double quotes on their own. Either it's not happening or your code is making it happen. We're going to need more information on the specifics of your application.

this is my code i'm using.
i have a webpage with 2 textboxes and a button.

Code:

---

If page.Ispostback then
  dim oCodeZonder as string
  dim oCodeMet as new system.text.stringbuilder
  dim oNewLine as integer
  dim teller as integer = 1
  htmlDoc.GetElementbyId("codeVoorTry").innerHtml = page.Request("codeVoorTry")
  oCodeZonder = page.Request("codeVoorTry")
  oCodeMet.Append("Try" & vbcrlf & "errNum = " & teller.ToString & vbCrLf)
  dim uitgaan as boolean
  uitgaan = false
  While uitgaan <> true
      teller = teller+1
      oNewline = oCodeZonder.IndexOf(vbCrLf)
      if oNewLine = -1 then
        uitgaan = true
        oCodeMet.Append(oCodeZonder & vbCrLf)
        oCodeMet.Append("errNum = " & teller.ToString & vbCrLf)
        oCodeMet.Append("catch ex as exception" & vbCrLf & "throw new exception (errNum & ""-"" & ex.Message)")
        oCodeMet.Append(vbCrLf & "end try")
      else
        oCodeMet.Append(Left(oCodeZonder, oNewLine))
        oCodeMet.Append(vbCrLf & "errNum = " & teller.ToString)
        oCodeZonder = oCodeZonder.Remove(0, oNewLine+1)
      end if   
  end while
  htmlDoc.GetElementbyId("codeNaTry").innerHtml = oCodeMet.tostring
end if

---

if for example i put this in the textbox:

oDetail.append("<tr><td>Section name</td><td><input type='text' id='afdelingNaamEng' name='afdelingNaamEng' value='" & cfc("afdelingnaam",1).ToString & "' runat='server'></td></tr>")
oDetail.append("<tr><td>Afdeling naam</td><td><input type='text' id='afdelingNaamNed' name='afdelingNaamNed' value='" & cfc("afdelingnaam",2).ToString & "' runat='server'></td></tr>")

it gives back this

oDetail.append("<tr><td>Section name</td><td><input type="text" id="afdelingNaamEng" name="afdelingNaamEng" value=""></td></tr>")
oDetail.append("<tr><td>Afdeling naam</td><td><input type="text" id="afdelingNaamNed" name="afdelingNaamNed" value=""></td></tr>")

Right, so it's not your text box. The lack of any other information in your first post implies that it's your own TextBox in a WinForms application. It's important to provide the whole story.

owk so finally know what the problem is. apparantly if you write a string from vb.net to an aspx page the string gets changed.
the chars having problems are <, >, ", '. what i did to prevent this was using string.replace to replace these chars to html code &quot; etc