Pass stored procedure result to array

Question

Quick question that I'm a bit unsure on how to proceed with an array issue.

Basically I have a stored procedure that outputs some course categories and I want to pass all of the rows to an array.

Subject            SubjectCode

Applied Science    F04
Access to HE       F05

So basically the above is an example of what I get from the stored procedure and I'd like to pass the results of the subject to an array.

Dim num as Integer
Dim strNumResult as String

num = 0

Do While (rsData.Read())

num = num + 1

strNumResult = num.ToString()

Dim array(strNumResult) as String

loop

I'm assuming that I'd need to count the amount of rows in the procedure first, then put this result into the array? How would I then systematically pull all subjects in the procedure into the array?

Thanks!

Answer 1

The easiest would be to use a List(Of Subject) instead which can be resized. I would also create a class for the subject since you have two fields.

Dim subjects = New List(Of Subject)
Using con = New SqlConnection(connectionString)
    Using cmd = New SqlCommand("StoredProcedureName", con)
        cmd.CommandType = CommandType.StoredProcedure
        Try
            con.Open()
            Using reader = cmd.ExecuteReader()
                While reader.Read
                    Dim subject = reader.GetString(0)
                    Dim subjectCode = reader.GetString(1)
                    subjects.Add(New Subject() With {
                                 .Subject = subject,
                                 .SubjectCode = subjectCode
                             })
                End While
            End Using
        Catch ex As Exception
            ' log exception 
        End Try
    End Using
End Using

here's a simple implementation of that class:

Public Class Subject
    Public Subject As String
    Public SubjectCode As String
End Class

If you insist on an array, you can call subjects.ToArray() .

Answer 2

You need GetRows method which will get your recordset data into an array:

array = recordset.GetRows(Rows, Start, Fields )

Basically execute your stored procedure and when you have the results use the GetRows method which returns a collection of rows from the result, given an array of unique column ID's.

You can see an example here .

In your case after making sure that you have some records returned you can do this:

arrData = rsData.GetRows()

Hope this helps.