How do I add a string to an array in visual basic net

Question

I have been looking for the specified code all day long, browsing through the MSDN libraries from microsoft, but I wasn't able to find or come up with a solution:

Question: How can I add a string to an existing array?

I have been trying this

Dim Items() As String
Items = ListBox1.Items.Cast(Of String).ToArray
Array.Reverse(Items)
Me.ListBox1.Items.Clear()
Me.ListBox1.DataSource = Items

**Items.add("Add This to my array")**

But this doesn't work unfortunately.

My code is loading a populated listbox into an array (reverses the entries, and then cleans the listbox before populating it with the array).

How can I add to this array now?

how would I need to define it..I was having troubles for instance with this line Dim Items() As String = ListBox1.Items.Cast(Of String).ToArray How would it has to look to define Items() as a List? — Alexander Mander
– Alexander Mander, Commented Feb 22, 2016 at 18:29
Try Redim preserve Items(Items.Count) 'Adds a new element to end of array. Items(Items.Count-1) = "Add this to my array" — JerryM
– JerryM, Commented Feb 22, 2016 at 18:29
In most all cases, a List(of String) should be preferred to an array. They are easier, more flexible than arrays, yet used/referenced almost identically. — Ňɏssa Pøngjǣrdenlarp
– Ňɏssa Pøngjǣrdenlarp, Commented Feb 22, 2016 at 18:58
...If you will be adding other strings to the collection, a BindingList<T> would be a better choice. — Ňɏssa Pøngjǣrdenlarp
– Ňɏssa Pøngjǣrdenlarp, Commented Feb 22, 2016 at 19:08

User9995555 · Accepted Answer · 2016-02-22 18:37:05Z

1

Try this.....

Public Class Form1

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

    Dim Items As List(Of String)
    Items = ListBox1.Items.Cast(Of String).ToList

    Items.Reverse()

    Items.Add("Add This to my array")

    Me.ListBox1.Items.Clear()
    Me.ListBox1.DataSource = Items
End Sub
End Class

almost identical code (slightly rearranged), using a List instead of an array

answered Feb 22, 2016 at 18:37

User9995555

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