WPF binding with observerableCollection doesnt work - wpf

Question

I use for my WPF project a binding of a table (db) to a listview. But if i start my project, the listview is empty. Iam using linq to get the data of my entity-framework and address has definitly the right string in it.
Is my binding is wrong and how to fix it?
xaml
<ListView ItemsSource="{Binding Items}" x:Name="lstvw_Overview" >
<ListView.View>
<GridView>
<GridViewColumn Header="Adresse"
DisplayMemberBinding="{Binding structureAddress}"/>
</GridView>
</ListView.View>
</ListView>
code
Iam pretty sure that my table is filled
Public Sub New()
Initialize()
End Sub
Dim address As String
Public Structure Uebersicht
Dim structureAddress As String
Shared _items As ObservableCollection(Of Uebersicht) = New ObservableCollection(Of Uebersicht)
Public Property Items As ObservableCollection(Of Uebersicht)
Get
Return _items
End Get
Set(value As ObservableCollection(Of Uebersicht))
_items = value
End Set
End Property
End Structure
Sub Initialize()
InitializeComponent()
DataContext = Me
fillListView()
End Sub
Sub fillListView()
Using container As New infrastrukturDB_TESTEntities1
Dim mailAddressList = From tbl_unzustellbarAdressen In container.tbl_unzustellbarAdressen
For Each mail In mailAddressList
address = mail.unzustellbarMail.ToString()
Try
Uebersicht._items.Add(New Uebersicht With {.structureAddress = address})
Catch ex As Exception
MessageBox.Show("error")
End Try
Next
End Using
End Sub

Answer 1

For WPF bindings, always provide a Property definition, fields are not supported by the Binding class. So you need to turn structureAddress into a property in order to make it work.
Since you set your Window (?) class instance as its own DataContext and try to bind ItemsSource="{Binding Items}", your window class needs to contain a Property named Items with some collection type (eg ObservableCollection). So move your collection from within Structure Uebersicht to the outer Window class and don't use Shared on the backing field.
Note you don't really need the property setter on Items since you initialize _items once and then you only ever modify the contained items but not the collection reference itself.