VB.NET: I Cant find the index of an array

Posted by steve on Stack Overflow See other posts from Stack Overflow or by steve
Published on 2010-04-15T08:39:59Z Indexed on 2010/04/15 11:03 UTC
Read the original article Hit count: 196

Filed under:

arrays

|

reverse

|

index

|

vb.net

This is the code for my array (which is working)

Public numUsers As Integer
Public fNameUsers As String = ("..\..\..\users.txt")
Public UserRecords As Usersclass() 'note... this line is in a module '

reader = New System.IO.StreamReader(fNameUsers)
numUsers = 0

   'Split the array up at each delimiter of "," and add new objects '
            Do While reader.Peek <> -1
                ReDim Preserve UserRecords(numUsers)
                oneline = reader.ReadLine
                fields = oneline.Split(",")
                UserRecords(numUsers) = New Usersclass
                UserRecords(numUsers).AccountNumber = fields(0)
                UserRecords(numUsers).CourseName = fields(1)
                UserRecords(numUsers).FirstName = fields(2)
                UserRecords(numUsers).LastName = fields(3)
                UserRecords(numUsers).DOB = fields(4)
                UserRecords(numUsers).Email = fields(5)
                UserRecords(numUsers).CourseProgress = (6)
                UserRecords(numUsers).AdminCheck = fields(7)

                numUsers = numUsers + 1

            Loop
            reader.Close()

My problem is that I don't know how to lookup the index of an array where the .accountNumber = a variable. For example the acccountNumber is 253, what is the code to find the index this relates to????

Thanks in advance

© Stack Overflow or respective owner

Related posts about arrays

Arrays in php, Compare 2 arrays and keep duplicate values

as seen on Stack Overflow - Search for 'Stack Overflow'
The following is 2 different definitions of the problem: How can I process 2 arrays so that I can keep the data of duplicate array[key] values. I have arrays A and B. I want to create array C with the children that their id/key values exist in both A and B arrays. Thank you >>> More
commands&creating pointer [closed]

as seen on Stack Overflow - Search for 'Stack Overflow'
input 23 3 4 4 42 n 23 0 9 9 n n n 3 9 9 x //according to input,i should create int pointer arrays. pointer arrays // starting from 1 (that is initial arrays is arrays[1].when program sees n ,it // must be jumb to arrays 2 // the first int input 23 is num_arrays which used… >>> More
n & x commands&creating pointer&with using malloc [closed]

as seen on Stack Overflow - Search for 'Stack Overflow'
input 23 3 4 4 42 n 23 0 9 9 n n n 3 9 9 x //according to input,i should create int pointer arrays. pointer arrays // starting from 1 (that is initial arrays is arrays[1].when program sees n ,it // must be jumb to arrays 2 // the first int input 23 is num_arrays which… >>> More
reopen or read and say why not reopened [closed]

as seen on Stack Overflow - Search for 'Stack Overflow'
input 23 3 4 4 42 n 23 0 9 9 n n n 3 9 9 x //according to input,i should create int pointer arrays. pointer arrays // starting from 1 (that is initial arrays is arrays[1].when program sees n ,it // must be jumb to arrays 2 // the first int input 23 is num_arrays which used… >>> More
Fortran arrays and subroutines (sub arrays)

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm going through a Fortran code, and one bit has me a little puzzled. There is a subroutine, say SUBROUTINE SSUB(X,...) REAL*8 X(0:N1,1:N2,0:N3-1),... ... RETURN END Which is called in another subroutine by: CALL SSUB(W(0,1,0,1),...) where W is a 'working array'. It appears that a specific… >>> More

Related posts about reverse

IPtables AWS EC2 NAT/Reverse NAT - For Reverse Proxy style setup but with IPtables

as seen on Server Fault - Search for 'Server Fault'
I was thinking initially needing to do a reverse proxy or something so I could get some SSL/TLS traffic look like it is being terminated at a server and IP address in the AWS cloud, and then that traffic is forwarded onto our actual web servers that aren't in the cloud... I've not done much iptables… >>> More
Reverse DNS does not match SMTP banner vs Reverse DNS mismatch

as seen on Server Fault - Search for 'Server Fault'
I have to make decision whether my Reverse DNS should match SMTP banner but Reverse DNS to DNS and vice versa stays different or vice versa. Which one to choose? I have an 2x Exchange 2010 server with one SMTP Sender with TMG 2010. TMG has 2 links connected so that we have 2 separate internet providers… >>> More
Django Class Views and Reverse Urls

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a good many class based views that use reverse(name, args) to find urls and pass this to templates. However, the problem is class based views must be instantiated before urlpatterns can be defined. This means the class is instantiated while urlpatterns is empty leading to reverse throwing errors… >>> More
Decompilers - Myth or Fact ?

as seen on Programmers - Search for 'Programmers'
Lately I have been thinking of application security and binaries and decompilers. (FYI- Decompilers is just an anti-complier, the purpose is to get the source back from the binary) Is there such thing as "Perfect Decompiler"? or are binaries safe from reverse engineering? (For clarity sake, by "Perfect"… >>> More
Salaries in reverse engineering fields [closed]

as seen on Programmers - Search for 'Programmers'
I bumped into an old friend at a conference and he told me he was now a consultant doing reverse engineering. I don't have much knowledge of this particular area, but this person (that I can't manage to get in touch with now) just casually mentioned that he was earning big bucks. I was hoping someone… >>> More