Wpf listview not updating

15 Oct

You would also normally have an Update Source Trigger set to Property Changed in your XAML on the control that is using your Songs collection as its Items Source.

I have spend a lot of time on Stackoverflow and i know there are many related questions but i could not find answer . However, WPF works around message passing and your songlibrary observablecollection should be raising some kind of propertychanged or collectionchanged to notify your front end that things have changed. And code: Class Main Window Public _Song Library As Observable Collection(Of ASong) Private Sub btn Load_Click(By Val sender As System. Hope this helps and at least gives some direction." id="ctl00_m_m_i_ctl00_gr_ctl01_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="4691295" / John, Code is a little difficult to read and you make no reference to your XAML.That means they stay visible while you scoll horizontally through all columns.This is a useful feature to keep a referencing column like an ID or a name always visible to keep your orientation while scrolling.In the following code im binding Records form a viewmodel , which is using an observablecollection , im also raising the inotifypropertychange, , now i have a button setup which uses the navigation.pushasync method to go to a new page , over there im updating the database Records , i have created a listview in this new page and used the same binding shown here to bind the Records , whenever i add something it updates , but if i press the back button and come back to this Entry Tab Page the binding doesnt update , it only updates if i close the app fully and restart it the data is shown.I want this listview to be updated not sure how to do it , i have tried using the onappearing and typing in the Listviewname.itemssource=Records; but this is showing an error "this does not exist in the current context" any help in the right direction would be appreciated.The Grid View Data Column containing the same property does change though.The collection used in the Item Source (Contract Notes) is an Observable Collection of objects of type Contrac Note. Add(Sng) End If End Sub Public Sub New() ' Add any initialization after the Initialize Component() call. Album = Input Box("Enter Album", "Album", "Unknown") _Song Library.