regular expressions

[jimberger]

Hi,

How do i write a regular expression in c# to extract a part of a string.

lets say i have a string

test = "CGDHTYJHJHGJUNK HERE:FGDGASPSESSIONID:IWANTTHISHERE;fgfghfghfgh"

I want to extract everything after ASPSESSIONID up until i get to the ;


thanks for your help

 

[earthandfire]

If you want to keep the colon ie:

:IWANTTHISHERE

use:

(?<=ASPSESSIONID).*(?=

If you want theresult to exclude the colon then use:

(?<=ASPSESSIONID.*(?=


Hope this helps.

 

[earthandfire]

The regular expression returns a match collection - using vb.net syntax to return the actual matches:


Dim rx As New System.Text.RegularExpressions.Regex(TextBox2.Text)
For Each m As System.Text.RegularExpressions.Match In rx.Matches(TextBox1.Text)
MessageBox.Show(m.ToString)
Next

where TextBox2 contains the pattern as in my previous post and TextBox1 contains the string to match as in your original post.


Hope this helps.