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Thread: vb newbie question on my assignment - arrays(very basic)

  1. #1

    Thread Starter
    Member
    Join Date
    Feb 2000
    Posts
    47

    Question distance college student - please help

    I am unable to get my program to display existing arrays
    and then manipulate with add and remove commands. It seems
    that I can add states and remove them but I cannot get my
    states that I have loaded into form_load to appear as well.
    HELP!!


    Dim state(1 To 50) As String
    Dim Amt As Integer
    Option Explicit

    Private Sub cmdDisplay_Click()
    Call DisplayArray
    End Sub

    Private Sub cmdExit_Click()
    End
    End Sub

    Private Sub cmdInsert_Click()
    'insert state into ordered array and display states
    Call AddState
    Call DisplayArray
    End Sub

    Private Sub cmdRemove_Click()
    'remove state from ordered array and display states
    Call RemoveState
    Call DisplayArray
    End Sub


    Private Sub Form_Load()
    state(1) = "ALABAMA"
    state(2) = "ARIZONA"
    state(3) = "ILLINOIS"
    state(4) = "INDIANA"
    state(5) = "WYOMING"
    End Sub

    Private Sub DisplayArray()
    Dim n As Integer
    'display all states in array
    picDisplay.Cls
    For n = 1 To Amt
    picDisplay.Print state(n)
    Next n
    End Sub

    Private Sub AddState()
    Dim newState As String, n As Integer, i As Integer
    'Insert state into ordered array
    If Amt = UBound(state) Then
    MsgBox "All states have been entered"
    Else
    newState = UCase(txtState.Text)
    state(Amt + 1) = newState
    n = 1
    Do While state(n) < newState
    n = n + 1
    Loop
    If (UCase(newState) = state(n)) And (n <= Amt) Then
    MsgBox "State is already listed in array"
    Else
    For i = Amt To n Step -1
    state(i + 1) = state(i)
    Next i
    state(n) = newState
    Amt = Amt + 1
    End If
    End If
    txtState.Text = ""
    txtState.SetFocus
    End Sub

    Private Sub RemoveState()
    Dim remState As String, n As Integer, i As Integer
    'remove a state from the array
    remState = UCase(txtState.Text)
    n = 1
    Do While (n < Amt) And (remState > state(n))
    n = n + 1
    Loop
    If (Amt = 0) Or (remState <> state(n)) Then
    MsgBox "state is not found in array"
    Else
    Amt = Amt + 1
    For i = n To Amt
    state(i) = state(i + 1)
    Next i
    End If
    txtState.Text = ""
    End Sub

    MomOf3CollegeStudentTooMuchToDoNeverEnoughTime

    Using VB6 Working Model Edition

  2. #2
    Fanatic Member
    Join Date
    Apr 2000
    Location
    Whats a location?
    Posts
    516

    Lightbulb I am V(ery) Basic

    What happened is you haven't updated Amt to equal 5 in your form_Load procedure. Once you do this it should all work Tickety-Boo.



    V(ery) Basic question for a V(ery) Basic guy.
    Courgettes.

  3. #3

    Thread Starter
    Member
    Join Date
    Feb 2000
    Posts
    47

    Talking

    too easy - but it works great now.

    THANKS A MILLION!

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