Hi everybody :D
I try to bind a textbox to a collection, so if the value of the item in the collection changes the textbox.text changes… but I cannot get it to work.
When I set the binding it gets the correct value, but if the collection changes the value don’t. I don’t know how to update it. I tried the examples in the help, but they don’t work for me.
Public Class Valor
Implements INotifyPropertyChanged
' Events
Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged
' Methods
Public Sub New(ByVal vvv As Integer)
Me._vvv = vvv
End Sub
' Properties
Public Property vvv() As Integer
Get
Return Me._vvv
End Get
Set(ByVal value As Integer)
Me._vvv = value
Me.OnPropertyChanged()
End Set
End Property
Private Sub OnPropertyChanged()
RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("vvv"))
End Sub
' Fields
Private _vvv As String
End Class
Public MyCantidades As New ObservableCollection(Of Valor)
'Cantidad
Dim Cantidad1 = New TextBlock
Cantidad1.FontSize = 30
Dim Enlace As Binding = New Binding()
Enlace.Source = MyCantidades.Item(3).vvv
Enlace.Mode = 1
Cantidad1.SetBinding(TextBlock.TextProperty, Enlace)
ListaVarios.Children.Add(Cantidad1)
and one boton to change the collection
Private Sub MasClick(sender As Object, e As RoutedEventArgs)
MyCantidades.Item(3).vvv = MyCantidades.Item(3).vvv + 1
End Sub
Ok, when I press the button the collection changes, but the textblock doesnt update.
¿Any clues?
Thank you in advance :D