Combo Box Help (beginner)

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Combo Box Help (beginner)

I added Items to the combo box. How do I define these items

Combo Box has a value of 1' = 100' (This is what you see in the drop down list), but I would like to convert this to 1/1200. Can I do this Define {1' = 100'} = {1/1200}. If so, how By the way I would like the 1/1200 to be an Integer(I Think) so it returns a value of .0008333 repeating.

Thanks, Mike

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Combo Box Help (beginner)

  • Les Thompson

    hi,

    forget about vb6, you have 2 columns not three, one is just a text the other column has values divided by / , if you want the " to appear in the text you can add it twice like that "1/16 = "" 1 "" "

    hope this helps



  • DavidTM

    hi,

    you can try something like this


    Public Class Form1
    'this form contains just one combobox

     Dim dt As DataTable = New DataTable
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    dt.Columns.Add(    "value")
    dt.Columns.Add(    "display")
    AddProduct(100,     "1/1200")
    AddProduct(200,     "1/1400")
    AddProduct(300,     "1/1500")
    ComboBox1.DataSource = dt
    ComboBox1.DisplayMember =     "value"

     ComboBox1.ValueMember = "display"

     End Sub

     Private Sub AddProduct(ByVal valuemember As Integer, ByVal displayMember As String)
    Dim dr As DataRow
    dr = dt.NewRow
    dr(    "value") = valuemember
    dr(    "display") = displayMember
    dt.Rows.Add(dr)
    End Sub

     Private Sub ComboBox1_DropDownClosed(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.DropDownClosed
    Dim keys() As String = ComboBox1.SelectedValue.ToString.Split("/")
    Dim value As Double = Double.Parse(keys(0)) / Double.Parse(keys(1))
    MessageBox.Show(value)
    End Sub
    End     Class

    hope this helps



  • JP.DEV

    That will work, thanks. Now I have three comboboxs, all with the same Items but will have different values. I'll play with it for awhile and see what I come up with. Mike

  • ThisBytes5

    hi,

    combobox have a valuemember and displaymember you can use the displaymember as " 100" and value member "1/1200" but first you have to have a table contian this data

    also .0008333 is double not integer

    hope this helps



  • Makarand_Keer

    I can't seem to find anything in the help menu that shows me how to create this Table you talk of. Do you know what It should look like

  • Macy-Mike

    Perfect, Thanks alot!

    So I modified the code to read as follows:

    AddProduct("1' = 100'", "1/1200")

    Next do I add a " with in the " "s

    I want it to read as:

    AddProduct("1/16" = 1'", "1/192")

    From what I can remember from VB6.0 it was something like + Chr(34) but that doesn't seem to work. Any ideas


  • RabBsl

    I'm still struggling with this.

    I changed the top to read as: Load_Combo(ByVal combo As ComboBox) Is this right I'm trying to get 3 comboboxs to have the same content but return different values.


  • Combo Box Help (beginner)
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