Want an array from ListBox's selected items

[ktrammen]

I have a ListBox populated from a view, with ValueMember holding integers.

I have the SelectionMode set to MultiSimple so multiple list items can be selected. I want to put the values of the selected items into an array "SelectedItemsArray"


This is my commonsense way of doing it:

       
        Dim i As Integer
        Dim SelectedItemsArray(ListBox1.SelectedItems.Count) As Integer

        For i = 0 To ListBox1.SelectedItems.Count - 1
            SelectedItemsArray(i) = ListBox1.SelectedItems(i).Value
        Next

However, it fails on "ListBox1.SelectedItems(i).Value" - I get this runtime error:

System.MissingMemberException occurred
  HResult=0x80131512
  Message=Public member 'Value' on type 'DataRowView' not found.

So ".Value" isn't valid. The silly thing is I came across the right syntax for retrieving the value of a selected item a few hours ago, but deleted it because I didn't need it at the time. And now I have spent the last hour and a half trying to find it again! Anyone know what the correct syntax is?

Ideally, I would like to simply pass the whole all the selected items into my array in one go without looping through, but I could not find a way. I wanted to do something like

SelectedItemsArray = ListBox1.SelectedItems

Is that impossible?

[jmcilhinney]

http://www.vbforums.com/showthread.p...tem&highlight=

[jmcilhinney]

If you follow that, the one-liner to get an array of selected values would be:

Dim myArray = myListBox.SelectedItems.
                        Cast(Of Object)().
                        Select(Function(item) myListBox.GetItemValue(item)).
                        Cast(Of Integer)().
                        ToArray()

Not the shortest one-liner, but a one-liner nonetheless.