Click here to Skip to main content
15,559,455 members
Please Sign up or sign in to vote.
1.00/5 (2 votes)
See more:
Just so that YOU all know, I DID search through all of the posted questions and others online. My issue is that I have created a string function in VB 2012 that (has some arguments). It searches specific locations in a 25 x 25 character array and returns a string of 3 to 10 characters in length. This string will be made up of capital letters (of words) and "*".

I'd like to use:

VB
String.Replace("*", "").Count


to determine the number of these characters in the returned string. How do I do this?

What I have tried:

I've tried:

VB
MyFunction([some arguments]).Replace("*", "").Count


but it dont work. I don't even think my function is returning the string properly.
Posted
Updated 2-Aug-18 20:32pm

Have a look at this: Counting Lines in a String[^] - it's about lines, but that just means that it specifically looks for '\n' - it's simple to change that - and the code is C# rather than VB, but it's mostly pretty trivial code. If you can't understand it, then online converters like this may help: Code Converter C# to VB and VB to C# – Telerik[^]
It presents quite a few different ways to do it, together with their relative speeds.
 
Share this answer
 
Comments
[no name] 3-Aug-18 12:37pm    
Thank you but I figured it out. The function call was being made from within an "IF" statement and the function had no value. I assigned the functions value to a temp variable and then tried the Replace - it worked!
Quote:
but it dont work. I don't even think my function is returning the string properly.

Displaying the result you get may help you to know if the function works properly or not.
VB
MyFunction([some arguments]).Replace("*", "").Count

Replace is a RegEx function, and in RegEx , '*' is a special char. you probaly need to change it ti '\*'

Just a few interesting links to help building and debugging RegEx.
Here is a link to RegEx documentation:
perlre - perldoc.perl.org[^]
Here is links to tools to help build RegEx and debug them:
.NET Regex Tester - Regex Storm[^]
Expresso Regular Expression Tool[^]
RegExr: Learn, Build, & Test RegEx[^]
Online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript[^]
This one show you the RegEx as a nice graph which is really helpful to understand what is doing a RegEx:
Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.[^]
This site also show the Regex in a nice graph but can't test what match the RegEx:
Regexper[^]
 
Share this answer
 
Comments
[no name] 3-Aug-18 12:37pm    
Thank you but I figured it out. The function call was being made from within an "IF" statement and the function had no value. I assigned the functions value to a temp variable and then tried the Replace - it worked!
Patrice T 3-Aug-18 13:34pm    
Nice to hear it.
It is always better to post some code that we can run.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)



CodeProject, 20 Bay Street, 11th Floor Toronto, Ontario, Canada M5J 2N8 +1 (416) 849-8900