Finding a substring in a mainstring

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  • cassandra.flowers
    #1

    Finding a substring in a mainstring

    Hi,
    This is a simple thing, but I'm having a bit of difficulty getting it exact.
    I've tried a few different codes, but can't do what I want, can some one
    help please?

    I have 3 text boxes, txtMainstring, txtSubstring and txtReplace string.
    Using the Instr and Replace functions I am able to search for text in
    txtMainString for the text in txtSubString, and then replace it with
    txtReplace. There are no problems with that. But I would like it to
    perform more like a 'Word Document'. When I search for a my word in
    txtMainString, I want it to highlight each time it finds the word. Then I
    need to replace each one (One at a time). I know I need to use SelText to
    highlight them, but I'm not sure how to.

    Can someone please help?

    Thanks

    Cassandra


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    • Larry Serflaten
      #2
      Re: Finding a substring in a mainstring

      "cassandra.flow ers" <cassandra.flow ers@btopenworld .com> wrote[color=blue]
      > Hi,
      > This is a simple thing, but I'm having a bit of difficulty getting it exact.
      > I've tried a few different codes, but can't do what I want, can some one
      > help please?
      >
      > I have 3 text boxes, txtMainstring, txtSubstring and txtReplace string.
      > Using the Instr and Replace functions I am able to search for text in
      > txtMainString for the text in txtSubString, and then replace it with
      > txtReplace. There are no problems with that. But I would like it to
      > perform more like a 'Word Document'. When I search for a my word in
      > txtMainString, I want it to highlight each time it finds the word. Then I
      > need to replace each one (One at a time). I know I need to use SelText to
      > highlight them, but I'm not sure how to.
      >[/color]

      It should be something more like this: <Find is your SubString to look for>

      pos = InStr(Text1.Tex t, Find) - 1
      If pos Then
      ' found
      Text1.SelStart = pos
      Text1.SelLength = Len(Find)
      Else
      ' not found
      End If

      pos might be -1 if there is no match.
      Instr supports a [Start] parameter if you need to get further into the text.

      LFS





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        Comment

        • Larry Serflaten
          #3
          Re: Finding a substring in a mainstring


          I corrected it once, and included the -1 comment, but a bad version
          got pasted into the post.

          the line: If pos Then
          should be: If pos < 0 Then

          Sorry!
          LFS





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            Comment

            • cassandra.flowers
              #4
              Re: Finding a substring in a mainstring

              .... I've fiddled around with it but i cant seem to get it to work. Any
              ideas?

              Thanks

              Cassandra

              "Larry Serflaten" <Filtered@RiskO fBeingSpam.med> wrote in message
              news:3fba6f06_5 @corp.newsgroup s.com...[color=blue]
              >
              > I corrected it once, and included the -1 comment, but a bad version
              > got pasted into the post.
              >
              > the line: If pos Then
              > should be: If pos < 0 Then
              >
              > Sorry!
              > LFS
              >
              >
              >
              >
              >
              > -----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
              > http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
              > -----== Over 100,000 Newsgroups - 19 Different Servers! =-----[/color]


                Comment

                • Larry Serflaten
                  #5
                  Re: Finding a substring in a mainstring

                  > ... I've fiddled around with it but i cant seem to get it to work. Any[color=blue]
                  > ideas?[/color]


                  Post some sample code, in a demo project. What is the problem you
                  are having?

                  LFS





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