.NET (Core and Framework)

Dim geneSeq As String = "ATTATCGATGATATTATTGGTCTTATTTGT"
Dim splitseq() As Char

splitseq = geneSeq.ToCharArray()

' Display the splitseq array
For Each ch As Char In splitseq
    Console.WriteLine(ch)
Next

private int myRegisterActiveObject(object pUnk)
{
    string sDelim = "!";
    string sProgID = "MyNamespace.ClassName";

    IBindCtx bc;
    Ole32.CreateBindCtx(0, out bc);

    IMoniker moniker;
    Ole32.CreateItemMoniker(sDelim,sProgID, out moniker);

    IRunningObjectTable rot;
    bc.GetRunningObjectTable(out rot);

    int register = rot.Register((ROTFLAGS_REGISTRATIONKEEPSALIVE | ROTFLAGS_ALLOWANYCLIENT), pUnk, moniker);

    return register;
}

[HKEY_CLASSES_ROOT\APPID\myApp.exe]
"APPID"="{guid}"

Imports System.IO
Imports System.DirectoryServices
Imports System.Data


Module Module1

    Public dsCSIDir As New DataSet("CSIDIR")
    Public Users_Table As New DataTable
    Public drUser As DataRow

    Sub ImportUsers()
        Dim direntry As New DirectoryEntry("LDAP://OU=CSI Users, DC=csileasing, DC=com")
        Dim searcher As New DirectorySearcher(direntry)

        Dim i As Integer = 0
        Dim result As SearchResult
        Console.WriteLine("Started Data Import at :  " & TimeOfDay)
        Try
            searcher.Filter = "(&(objectClass=user)(samaccountname=*))"
            searcher.ClientTimeout = TimeSpan.FromSeconds(5)

            For Each result In searcher.FindAll
                If result.Properties("samaccountname")(0) = Nothing Then
                    Continue For
                End If

                drUser = Users_Table.NewRow

                drUser("index") = i

                If result.Properties.Contains("company") Then
                    drUser("Company") = result.GetDirectoryEntry.Properties("company").Value
                Else
                    Continue For
                End If

                drUser("LoginID") = result.GetDirectoryEntry.Properties("samaccountname").Value
                drUser("DisplayName") = result.GetDirectoryEntry.Properties("cn").Value

                If result.Properties.Contains("title") Then
                    drUser("Title") = result.GetDirectoryEntry.Properties("title").Value
                End If

                If result.Properties.Contains("telephoneNumber") Then
                    drUser("OfficePhone") = result.GetDirectoryEntry.Properties("telephoneNumber").Value
                End If

                If result.Properties.Contains("mobile") Then
                    drUser("CellPhone") = result.GetDirectoryEntry.Properties("mobile").Value
                End If

                If result.Properties.Contains("mail") Then
                    drUser("Email") = result.GetDirectoryEntry.Properties("mail").Value
                End If

                If result.Properties.Contains("streetAddress") Then
                    drUser("Street") = result.GetDirectoryEntry.Properties("streetAddress").Value
                End If

                If result.Properties.Contains("l") Then
                    drUser("City") = result.GetDirectoryEntry.Properties("l").Value
                End If

                If result.Properties.Contains("st") Then
                    drUser("State") = result.GetDirectoryEntry.Properties("st").Value
                End If

                If result.Properties.Contains("postalCode") Then
                    drUser("PostalCode") = result.GetDirectoryEntry.Properties("postalCode").Value
                End If

                If result.Properties.Contains("memberof") Then
                    Dim groups As DirectoryServices.ResultPropertyValueCollection = result.Properties.Item("MemberOf")
                    Dim groupslist As String = ""
                    Dim groupname As String = ""
                    For k As Int16 = 0 To groups.Count - 1
                        Dim fullname As String = result.Properties("memberof").Item(k).ToString
                        groupname = Left(Split(fullname, "=")(1), Len(Split(fullname, "=")(1)) - 3)
                        groupslist = groupslist & groupname & ","
                    Next
                    groupslist = Left(groupslist, Len(groupslist) - 1)
                    drUser("Groups") = groupslist
                End If

                If result.Properties.Contains("manager") Then
                    Dim managername As String() = Split(result.Properties("manager")(0), ",")
                    drUser("Manager") = Right(managername(0), Len(managername(0)) - 3)
                End If

                If result.Properties.Contains("sn") Then
                    drUser("FirstName") = result.GetDirectoryEntry.Properties("sn").Value
                End If

                If result.Properties.Contains("givenname") Then
                    drUser("LastName") = result.GetDirectoryEntry.Properties("givenname").Value
                End If

                If result.Properties.Contains("directReports") Then
                    Dim groups As DirectoryServices.ResultPropertyValueCollection = result.Properties.Item("directReports")
                    Dim groupslist As String = ""
                    Dim groupname As String = ""
                    For k As Int16 = 0 To groups.Count - 1
                        Dim fullname As String = result.Properties("directReports").Item(k).ToString
                        groupname = Left(Split(fullname, "=")(1), Len(Split(fullname, "=")(1)) - 3)
                        groupslist = groupslist & groupname & ","
                    Next
                    groupslist = Left(groupslist, Len(groupslist) - 1)
                    drUser("DirectReports") = groupslist
                End If

                If result.Properties.Contains("department") Then
                    drUser("Department") = result.GetDirectoryEntry.Properties("department").Value
                End If
                i += 1
                Users_Table.Rows.Add(drUser)
            Next
        Catch ex As Exception

        End Try
        Users_Table.AcceptChanges()
        dsCSIDir.Tables.Add(Users_Table)
    End Sub

    Public Sub CreateDataStructure()
        Users_Table.TableName = "Users"
        Console.WriteLine("Start of Create Columns at:  " & TimeOfDay)
        Users_Table.Columns.Add("index", GetType(Integer))
        Users_Table.Columns.Add("LoginID", GetType(String))
        Users_Table.Columns.Add("FirstName", GetType(String))
        Users_Table.Columns.Add("LastName", GetType(String))
        Users_Table.Columns.Add("DisplayName", GetType(String))
        Users_Table.Columns.Add("Title", GetType(String))
        Users_Table.Columns.Add("Company", GetType(String))
        Users_Table.Columns.Add("Email", GetType(String))
        Users_Table.Columns.Add("OfficePhone", GetType(String))
        Users_Table.Columns.Add("CellPhone", GetType(String))
        Users_Table.Columns.Add("Street", GetType(String))
        Users_Table.Columns.Add("City", GetType(String))
        Users_Table.Columns.Add("State", GetType(String))
        Users_Table.Columns.Add("PostalCode", GetType(String))
        Users_Table.Columns.Add("Manager", GetType(String))
        Users_Table.Columns.Add("Department", GetType(String))
        Users_Table.Columns.Add("Groups", GetType(String))
        Users_Table.Columns.Add("DirectReports", GetType(String))
        Console.WriteLine("End of Create Columns at:  " & TimeOfDay)
    End Sub

Ian McCaul wrote:

An array will work just fine for what youre trying to do. Datasets and Datatables will add a lot more overhead and processing then what is required for what you are trying to do. There isnt anything wrong with what you are trying to do but again datatables and especially datasets will take more resources.