counting selected items in a list box

问题

How do you count the amount of values in a list box that are selected, rather than all of those within the list box?

I need to get the number and then make it a string. Once i have the number i can change this easily to a string

thanks

回答1:

yourlistbox.SelectedItems.Count

回答2:

I have done this using ListBox1.GetSelectedIndices.Length

回答3:

You can loop through the items in the listbox like so:

    For Each item As ListItem In MyListBox.Items
        If item.Selected Then
           'Do something               
        End If
    Next

来源：https://stackoverflow.com/questions/10014493/counting-selected-items-in-a-list-box