Solved

Find and replace strings

Posted on 2011-02-22
4
240 Views
Last Modified: 2012-05-11
Hi Experts,

I have a problem; I have a string called mystring as:
mystring = "ABC1254,ACB859,BCA9875"

I would like firstly to only get the first three characters of each item of mystring (each item is divided by a comma)
Then the result will be like this:
mystring = "ABC,ACB,BCA"

Finally, can I replace each item with its corresponding number? Such as:
ABC= 1
ACB =2
BCA =3

So, the final result is:
mystring = "1,2,3"

Note: I am using vb.net 2010
Thanks in advance
Regards
0
Comment
Question by:Sat80
  • 2
4 Comments
 
LVL 7

Accepted Solution

by:
klakkas earned 500 total points
ID: 34950964
Using Split and Substring, you can achieve what you want.

Here is a code sample:

Dim mystring As String = "ABC1254,ACB859,BCA9875"
        Dim Res As String = ""
        For Each part As String In mystring.Split(Convert.ToChar(","))
            Select Case part.Substring(0, 3)
                Case "ABC"
                    Res += "1,"
                Case "ACB"
                    Res += "2,"
                Case "BCA"
                    Res += "3,"
            End Select
        Next
        mystring = Res.Substring(0, Res.Length - 1)

Open in new window

0
 
LVL 29

Expert Comment

by:Göran Andersson
ID: 34950969
First split the string into it's items:

  Dim items as String() = mystring.Split(","C)

Then you can get the first characters of each item:

  For i As Integer = 0 To items.Length - 1
    items(i) = items(i).Substring(0, 3)
  Next

Create a dictionary for the translations:

  Dim replace As New Dictionary(Of String, String)
  replace.Add("ABC", "1")
  replace.Add("ACB", "2")
  replace.Add("BCA", "3")

Check each string for a translation:

  For i As Integer = 0 To items.Length - 1
    If replace.ContainsKey(items(i)) Then
      items(i) = replace(items(i))
    End If
  Next

Put the items back into a string again:

  mystring = String.Join(",", items)
0
 

Author Closing Comment

by:Sat80
ID: 34950986
Thanks!
0
 

Author Comment

by:Sat80
ID: 34950995
Sry GreenGhost, I did not see your comment before accepting the first reply. Thank you for the help.
0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
VB: Convert 2 dates to specific format 24 48
Regular expression help 2 22
REXEX help Part 2 2 22
Footer for each row on Gridview 2 19
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
Real-time is more about the business, not the technology. In day-to-day life, to make real-time decisions like buying or investing, business needs the latest information(e.g. Gold Rate/Stock Rate). Unlike traditional days, you need not wait for a fe…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…

813 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now