Contains (similar function exists?)

[aaro4130]

Okay, so i have a listbox a textbox and a mediaplayer

A timer with the interval of "1" changes the textbox to the current positon (1.????)

BUT the listbox contains 1.????????? (differnet length of textbox), anyway to add/shorten the string, substring doesn't work.

Also, when i check with the timer, even if it does match it deosnt tell me it matches

 If ListBox2.Items.Contains(AxWindowsMediaPlayer1.Ctlcontrols.currentPosition) Then
            MsgBox("hello")
        End If

EX.
Listbox item : 1.010000
media player : 1.01

i need to make the media player one match
Also whent it matches it doesnt tell me, any help?

btw pic attached

[AceInfinity]

anyway to add/shorten the string, substring doesn't work.

Use the Math.Round() method to shorten a "string" (really a number value as far as I can tell, but after rounding you can parse or cast it to a string which gets appended to the textbox afterwards.

I am confused on your question about matching positions and trying to match the position itself with some variable you have visible inside a listbox control though...

What exactly is this application designed to do?

[.paul.]

try this:

If ListBox2.Items.Contains(AxWindowsMediaPlayer1.Ctlcontrols.currentPosition.ToString("f6")) Then
    MsgBox("hello")
End If

[aaro4130]

try this:

If ListBox2.Items.Contains(AxWindowsMediaPlayer1.Ctlcontrols.currentPosition.ToString("f6")) Then
    MsgBox("hello")
End If

Hmm that covers the string length but when it matches it doesnt run the code :/

[kareninstructor]

One idea is to populate your Listbox so that the long format is display with the short format stored but not shown by using a DataTable as the DataSource to a BindingSource which is the DataSource for the Listbox. When you need to locate a item i.e. 3.25 use the BindingSource Find method to set the Position in the ListBox

Public Class frmDemo1
    WithEvents bsSomeValues As New BindingSource
    Private Sub frmDemo1_Load( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles MyBase.Load

        Dim SomeValues As String() = _
        { _
         "1.010000", _
         "3.254367", _
         "4.000000" _
        }

        Dim dtValues As New DataTable()
        dtValues.Columns.Add("Display", GetType(String))
        dtValues.Columns.Add("Value", GetType(String))

        For Each item In SomeValues
            dtValues.Rows.Add(item, CDec(item).ToString("f2"))
            ListBox2.Items.Add(CDec(item).ToString("f2"))
        Next

        bsSomeValues.DataSource = dtValues
        ListBox1.DisplayMember = "Display"
        ListBox1.ValueMember = "Value"
        ListBox1.DataSource = bsSomeValues

        ListBox2.SelectedIndex = 1

    End Sub
    Private Sub Button1_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles cmdTest1.Click

        ChangePosition()

    End Sub
    Private Sub ListBox2_MouseDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles ListBox2.MouseDoubleClick
        ChangePosition()
    End Sub
    Private Sub ChangePosition()
        Dim Postion = bsSomeValues.Find("Value", ListBox2.Text)
        If Postion <> -1 Then
            bsSomeValues.Position = Postion
        End If

    End Sub
End Class

This example finds a match in ListBox1 each time the position changes in ListBox2 (seebsData).

Public Class frmDemo1
    WithEvents bsSomeValues As New BindingSource
    WithEvents bsData As New BindingSource
    Private Sub frmDemo1_Load( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles MyBase.Load

        Dim ListValues As New List(Of String)

        Dim SomeValues As String() = _
        { _
         "1.010000", _
         "3.254367", _
         "4.000000" _
        }

        Dim dtValues As New DataTable()
        dtValues.Columns.Add("Display", GetType(String))
        dtValues.Columns.Add("Value", GetType(String))

        For Each item In SomeValues
            dtValues.Rows.Add(item, CDec(item).ToString("f2"))
            ListValues.Add(CDec(item).ToString("f2"))
        Next

        bsSomeValues.DataSource = dtValues
        ListBox1.DisplayMember = "Display"
        ListBox1.ValueMember = "Value"
        ListBox1.DataSource = bsSomeValues

        bsData.DataSource = ListValues

        ListBox2.DataSource = bsData
        ActiveControl = ListBox2

    End Sub
    Private Sub bsData_PositionChanged( _
        ByVal sender As Object, _
        ByVal e As System.EventArgs) Handles bsData.PositionChanged

        Dim Postion = bsSomeValues.Find("Value", CStr(bsData.Current))
        If Postion <> -1 Then
            bsSomeValues.Position = Postion
        End If
    End Sub
End Class

[aaro4130]

GAH! None of this works D:

The 00:01 will work, but the 0.0001 wont work

And i made a new program and added my own items to a listbox and converted them both to integeres and it didnt work, can anybody think of a solution? :S

also dont think im a n00b, i attached a screenshot of a previous proggy i worked on lol