How to delete list items?

Question

How can I delete an item of a list?

Answer 1

Do you mean to delete the selected item?

ListBox1.Items.RemoveAt(ListBox1.SelectedIndex)

Or to clear the whole listbox

ListBox1.Items.Clear()

Answer 2

Hi,

 I will guess that you may be using a List(Of T). If so you can use the Remove, RemoveAt, or RemoveRange to remove items from the list. Here is an example of them.

        Dim MyList As New List(Of String)
        MyList.Add("Item-1")
        MyList.Add("Item-2")
        MyList.Add("Item-3")

        'You can choose which way you want to remove the item(s)

        MyList.Remove("Item-2") 'Removes first occurrence of "Item 2" in the list

        MyList.RemoveAt(1) 'Removes the item at the index specified. Removes "Item-2"

        MyList.RemoveRange(1, 2) 'Removes a range of indexes. Removes "Item-2 and Item-3"

Here is the msdn link to the List(Of T) class methods. Click on the the Remove, RemoveAt, and RemoveRange to read more info about using them.

Answer 3

I tried the

ListBox1.Items.RemoveAt(ListBox1.SelectedIndex)

but it didn't work.Any other ideas of how to delete the selected item of a list?

Answer 4

I tried the

ListBox1.Items.RemoveAt(ListBox1.SelectedIndex)

but it didn't work.Any other ideas of how to delete the selected item of a list?

The above code works but you need put it in some action so for example you can do it like that:

Private Sub ListBox1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ListBox1.SelectedIndexChanged
        If (ListBox1.SelectedIndex <> -1) Then
            ListBox1.Items.RemoveAt(ListBox1.SelectedIndex)
        End If
    End Sub

Or like that:

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        If (ListBox1.SelectedIndex <> -1) Then
            ListBox1.Items.RemoveAt(ListBox1.SelectedIndex)
        End If
    End Sub