How to count value from string in for loop in vb?

Question

i have a string containing value like this

  i ={11212}
     {22121}
     {3113}
     {4122}
     {5121}  
     ......
     ......

How can i count the total no of value ?

i read the value from listbox and put it here and i decrare it as string — TheTricker
– TheTricker, Commented Jun 18, 2015 at 7:09

Jens · Accepted Answer · 2015-06-18 07:22:12Z

2

You can use LinQ to count the number of brackets:

Dim Count = (From s In i Select s Where s = "{").Count

And you should rename i to something sensible in my opinion.

For when you have just any delimiter in your text and want to count single numbers you can as well use a regular expression and count the matches:

Dim InputString = "{11212}{22121}{4122}12312"
Dim rx As New System.Text.RegularExpressions.Regex("[0-9]+")
Dim NumberCount = rx.Matches(InputString).Count 'Outputs 4

This searches for occurences of numbers of any length in your input.

edited Jun 18, 2015 at 7:22

answered Jun 18, 2015 at 7:10

Jens

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4 Comments

TheTricker Over a year ago

is there any process ...in for each loop

TheTricker Over a year ago

if it contains only value not the " {"

coder Over a year ago

instead of "{" you may put the separator that separates each value from another, whether it was a space or \n ... and add one to the count at the end.

Jens Over a year ago

Why? The solution is adaptable and works. This is not a "Do-my-homework" service.

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