Getting ListView values into a string array?

Question

I have a ListView control set up in details mode, and on a button press I would like to retrieve all column values from that row in the ListView.

This is my code so far:

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
    Dim items As ListView.SelectedListViewItemCollection = _
    Me.ManageList.SelectedItems
    Dim item As ListViewItem
    Dim values(0 To 4) As String
    Dim i As Integer = 0
    For Each item In items
        values(i) = item.SubItems(1).Text
        i = i + 1
    Next
End Sub

But values just comes out as an empty array. Any ideas? I just want the values array to be filled with the data of that ListView row.

Cheers.

Are any values actually selected when before you click the button? — Neil Knight
– Neil Knight, Commented Apr 20, 2010 at 8:34

Inbar Rose · Accepted Answer · 2013-08-27 13:11:29Z

2

Here's the single-line solution:

mylistview.Items.Cast(Of ListViewItem).Select(Function(lvi As ListViewItem)lvi.SubItems(1).Text).ToArray()

edited Aug 27, 2013 at 13:11

Inbar Rose

43.7k24 gold badges91 silver badges137 bronze badges

answered Aug 27, 2013 at 12:54

Geoff

212 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Hans Passant · Accepted Answer · 2010-04-20 10:03:54Z

1

You need to iterate the SubItems, not the selected items. Fix:

If Me.ManageList.Items.Count <> 1 Then Exit Sub
Dim row As ListViewItem = Me.ManageList.Items(0)
Dim values(0 To row.SubItems.Count-1) As String
Dim i As Integer = 0
For Each item As ListViewItem.ListViewSubItem In row.SubItems
  values(i) = item.Text
  i = i + 1
Next

answered Apr 20, 2010 at 10:03

Hans Passant

946k151 gold badges1.8k silver badges2.6k bronze badges

Comments

Hans Olsson · Accepted Answer · 2010-04-20 08:36:02Z

0

Just to check, are you aware that item.SubItems(1).Text will get the texts from the second column? And that since you're using SelectedItems it'll only look at the currently selected items in the ListView.

Edit: Also, are you sure there will always just be a maximum of 5 selected items in the ListView? Otherwise you'll have problems with

Dim values(0 To 4) As String

answered Apr 20, 2010 at 8:36

Hans Olsson

55.1k16 gold badges99 silver badges118 bronze badges

6 Comments

Andrew Over a year ago

Yeah, I'm aware it's 0 based and looking at the selected items is what I want :)

Hans Olsson Over a year ago

Then I can't think of anyhting more since the code above works (for up to 5 selections).

Hans Olsson Over a year ago

You don't have any hidden (0 width) columns so that you might be reading the wrong one?

Andrew Over a year ago

If I try: MessageBox.Show(values(2)) or something the messagebox comes up with no text, making me think the array is empty. But yeah, the code does compile and run fine.

Andrew Over a year ago

And nah I don't have any hidden columns.

|

Louis van Tonder · Accepted Answer · 2013-01-31 13:54:02Z

0

Old question, I know... maybe this helps for someones reference.. stumbled upon this question in a search for something else.

This works... not sure if the original poster somehow used an empy colelciton of selected items...

Also, dynamically resizing array based on selected items to overcome unforseen bugs...

    Dim valueArray(mylistview.SelectedItems.Count - 1) As String
    Dim i As Integer

    For Each Item As ListViewItem In mylistview.SelectedItems
        valueArray(i) = Item.Text
        i += 1
    Next

To get subitems, use item.subitems(1).text ... subitems(2).text.. etc

Cheers

answered Jan 31, 2013 at 13:54

Louis van Tonder

3,7203 gold badges33 silver badges64 bronze badges

Collectives™ on Stack Overflow

Getting ListView values into a string array?

4 Answers 4

Comments

Comments

6 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

Comments

Comments

6 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related