CODEWITHSUNDEEP
vb.netlistboxdataset
Crunchystick
Crunchystick

Reputation: 21

Visual Basic: How can I get all selected Values from a Listbox (Selectionmode Multisimple) using a Loop?

I'm using a Listbox in my program which is coupled to a dataset. Now I want to select some items in Runtime and get all the values behind those selected items. The values represent the ID's from the Database Entities. I need them for some SQL-queries.

So this is what I've already tried:

For x = 0 To ContracttypeListBox.Items.Count() - 1
    If ContracttypeListBox.GetSelected(x) = True Then

        MsgBox(ContracttypeListBox.SelectedItems(x)(ContracttypeListBox.ValueMember))

    End If
Next

I found the function in the MsgBox using my friend Google. Actually it works quite well but only if I select all items (starting with the first one) in the Listbox. An unselected item among them will cause a System.IndexOutOfRangeException. The same Problem occurs when I don't select the first item in the list but all the others.

Upvotes: 1

Views: 6226

Answers (2)

user3453226
user3453226

Reputation:

You can use ListBox.SelectedItems.

For Each item In ListBox1.SelectedItems
    Dim id As Integer = Val(item.ToString)
Next

Upvotes: 0

Crunchystick
Crunchystick

Reputation: 21

Thanks to Plutonix

This is the solution:

    For x = 0 To ContracttypeListBox.SelectedItems.Count() - 1
        If ContracttypeBox.SelectedItems.Count() > 0 Then

            MsgBox(ContracttypeListBox.SelectedItems(x)(ContracttypeListBox.ValueMember))

        End If
    Next x

Upvotes: 1

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