Quantity in a ListBox

I'm having trouble coding a listbox that works with quantity.

What I am trying to do:
I have a list box on form1 where you select what you would like to add to a listbox on form2 by pressing a commandbutton on form1. Also by pressing the commandbutton each time a quantity will appear next to the item in the listbox on form2.

Thanks for any help coding something like that.

Maybe have..

VB Code:

Dim num_boxes As Integer 'quantity of items
 
Private Sub Command1_Click()
'do we already have this item in the list?
If num_boxes > 0 Then
    'yes we have one already, so search for it
    For i = 0 To Form2.List1.ListCount - 1
        If Left(Form2.List1.List(i), 3) = "Box" Then
            Form2.List1.RemoveItem i 'remove it
            Form2.List1.AddItem "Box (" & num_boxes + 1 & ")" 'add it again with the new amount
            num_boxes = num_boxes + 1
        End If
    Next i
Else
    'we don't have one yet, so add it
    Form2.List1.AddItem "Box (1)"
    num_boxes = 1
End If
End Sub

Hope this helps,

Phreak

VB Code:

Private Sub Command1_Click()
    With Form2.List1
        .List(.ListIndex) = .List(.ListIndex) & " - " & txtQty.Text
    End With
End Sub

Oh, stupid me. Too long have I been away from Visual Basic. I think this is what you wanted, but using Rhinobull's inspiration :D

VB Code:

Private Sub Command1_Click()
If num_boxes > 0 Then
    num_boxes = num_boxes + 1 'moved that
    'yes we have one already, so search for it
    For i = 0 To Form2.List1.ListCount - 1
        If Left(Form2.List1.List(i), 3) = "Box" Then
            Form2.List1.List(i) = "Box (" & num_boxes & ")" 'changed that
        End If
    Next i
Else
    'add it
    Form2.List1.AddItem "Box (1)"
    num_boxes = 1
End If
End Sub

Phreak

it works, but it says "Box (1)" then "Box(2)" instead of the selected item from listbox1

Oh, I didn't see that in your original post, sorry:

VB Code:

'List1 - Form1
'List 1 - Form2
'Command1 - Form1
 
Dim num_boxes As Integer
Private Sub Command1_Click()
If num_boxes > 0 Then
    num_boxes = num_boxes + 1 'moved that
    'yes we have one already, so search for it
    For i = 0 To Form2.List1.ListCount - 1
        If Left(Form2.List1.List(i), Len(List1.List(List1.ListIndex + 1))) = List1.List(List1.ListIndex + 1) Then
            Form2.List1.List(i) = Me.List1.List(Me.List1.ListIndex) & " (" & num_boxes & ")" 'changed that
        End If
    Next i
Else
    'add it
    Form2.List1.AddItem List1.List(List1.ListIndex) & " (1)"
    num_boxes = 1
End If
End Sub

Phreak

Doesn't work. It will add the selected item from the first listbox to the second with a (1) the first time the commandbutton is clicked but every other time it is clicked nothing happens.

You'll have to post your code, Velken.

I used the code «°°phReAk°°» supplied.

VB Code:

'List1 - Form1
'List 1 - Form2
'Command1 - Form1
 
Dim num_boxes As Integer
Private Sub Command1_Click()
If num_boxes > 0 Then
    num_boxes = num_boxes + 1 'moved that
    'yes we have one already, so search for it
    For i = 0 To Form2.List1.ListCount - 1
        If Left(Form2.List1.List(i), Len(List1.List(List1.ListIndex + 1))) = List1.List(List1.ListIndex + 1) Then
            Form2.List1.List(i) = Me.List1.List(Me.List1.ListIndex) & " (" & num_boxes & ")" 'changed that
        End If
    Next i
Else
    'add it
    Form2.List1.AddItem List1.List(List1.ListIndex) & " (1)"
    num_boxes = 1
End If
End Sub

Here is a sample of my own. So try it out and let me know.

VB Code:

Private Sub Command1_Click()
Dim i%, sItem$, sQty%
 
    'get new entry
    sItem = Trim(txtItem.Text)
    sQty = Val(Trim(txtQty.Text)) 'not the best way but it works to some extent
    
    With Form2.List1
        'check if item already exit
        If .ListCount > 0 Then
            For i = 0 To .ListCount - 1
                If InStr(1, .List(i), sItem) > 0 Then
                    'it does - change it
                    .List(i) = sItem & " (" & txtQty.Text & ")"
                    Exit Sub
                End If
            Next i
        End If
        'it doesn't - add new
        .AddItem sItem & " (" & txtQty.Text & ")"
    End With
 
End Sub
 
Private Sub txtItem_KeyPress(KeyAscii As Integer)
    If KeyAscii = 13 Then Command1_Click
End Sub
 
Private Sub txtQty_KeyPress(KeyAscii As Integer)
    If KeyAscii = 13 Then Command1_Click
End Sub

I copied it in, tried it, and got an Object Required Error on line :

sItem = Trim(txtItem.Text)

Velken,
it's just a sample project and I used some textbox to type item name and another textbox (txtQty) to type actual qty so I can test it. In your project item and qty are something that only YOU may know where to get them from. You have to be a little more creative and learn how to read someone else's code and not just COPY/PASTE some silly sample regardles of its readyness.

Cheers

my mistake ... ill mess with it and see what I can do.
I do appreciate the help btw.