[2005] Need help with the openfiledialog & listview or listbox

[one_&_only]

I have my openfiledialog and set the code but can't get it to display the text in a listview or a listbox after i open it only thing i can get the text displayed in is a textbox hope somebody can help

[jmcilhinney]

If you've got the text into a TextBox then you've opend the file so this question ahs nothing to do with the OpenFileDialog. If you want to put strings into a ListBox then you need to add them to its Items collection. If you have a text file with multiple lines and you want each line to be an item in a ListBox then the easiest way is like this:

Using ofd As New OpenFileDialog
    If ofd.ShowDialog() = Windows.Forms.DialogResult.OK Then
        Me.ListBox1.Items.AddRange(IO.File.ReadAllLines(ofd.FileName))
    End If
End Using

or this:

Using ofd As New OpenFileDialog
    If ofd.ShowDialog() = Windows.Forms.DialogResult.OK Then
        Me.ListBox1.DataSource = IO.File.ReadAllLines(ofd.FileName)
    End If
End Using

The ListView is a lttle more complex because you have to create a ListViewItem object for each line:

Using ofd As New OpenFileDialog
    If ofd.ShowDialog() = Windows.Forms.DialogResult.OK Then
        Dim lines As String() = IO.File.ReadAllLines(ofd.FileName)
        Dim upperBound As Integer = lines.GetUpperBound(0)
        Dim items(upperBound) As ListViewItem
 
        For index As Integer = 0 To upperBound Step 1
            items(index) = New ListViewItem(lines(index))
        Next index
 
        Me.ListView1.Items.AddRange(items)
    End If
End Using

[one_&_only]

thx alot worked perfectly i would think ppl would use the listbox more since less code but seems ppl use listview more is there some advantage to listview that i'm missing?

[jmcilhinney]

The ListBox will display a list of items in a single column and is perfect for that simple case. The ListView has far more functionality than that. It provides multiple views, mulitple columns with headers, groups, etc. The right-hand side of Windows Explorer is a ListView, as is the message list in Outlook.