CollectionViewSource/BindingListCollectionView to ObservableCollection/ListCollection

I use a CollectionViewSource to feed the Items of a ListView.  My CollectionViewSource is bound to an ObservableCollection that contains items that implement INotifyPropertyChanged.  Item property changes are being appropriately reflected in the ListView, but I'm surprised to find that the item does not automatically get resorted when its property that the sort is keying off of changes.  It would seem that all the information should be there for the ListView to recognize the need to resort the changed item.  Is there a way to make this happen or another 'lighter' alternative to calling Refresh() on the view?

 

Thanks!

 

mike

Ken Getz shows how the CollectionChanged event lets you reflect changes to your underlying data source in your bound data controls.

Ken Getz

MSDN Magazine December 2008

My class has a property ObservableCollection<MyType>. When any value of MyType changes, I want the setter for my property to be hit. It seems the setter is only hit when the CollectionChanged event is thrown, but in this case the Collection isn't changing, just a value of one of the properties in my Collection. 

Any pointers?

I'm currently so frustrated and can't seem to find a solution on google or msdn.

I'm using EF classes.  In my code, I have a ObservableCollection (CustomerCollection) which is assigned to a CollectionViewSource.  The data load/save fine.  The problem is when I delete one of the customers in the datacontext, the listview does not remove it.  Can someone tell me how to fix this?  Do I have to use the collectionview to delete/add all the times?

    private DataContext db = new DataContext();
    private CustomerCollection CustomerData;
    private ListCollectionView customerView;

    private void Window_Loaded(object sender, RoutedEventArgs e)
    {
      var query = from c in this.db.Customers
            where c.CompanyName.Contains(argSearchValue)
            || c.CustomerNo.Contains(argSearchValue)
            orderby c.CompanyName
            select c;

      var customerSource = ((CollectionViewSource)(this.FindResource("CustomerSource")));

      this.CustomerData = new CustomerCollection(query, this.db);
      customerSource.Source = this.CustomerData;
      this.customerView = ((ListCollectionView)(customerSource.View));

    } 

Hi All,

I'm newbie to programming. Now I just playing and learning.

I've made a WebService about this video tutorial: http://msdn.microsoft.com/en-us/netframework/first-steps-with-wcf.aspx

Everithing works fine. I've extended this with a little entity framework. Created a database and now my WPF client gets the data from my SQL database.

In my WPF clien I use DataGrid to show a few thing. I've heard I should use ObservableCollection as the itemsource and then for example if I submit a new record my list will refresh automatically and I get other cool things...

I need some help about this task. I don't really understand how could I implement this.

I'd like to show a few code snippet and ask somebody help me to rewrite my code to use ObservableCollection.

Well lets see the code snippets:

I generated my database from model definition. The generation created a class called EntityDB. EntityDB has a few properties like UserName, Password etc...

In my interface definition I have a methode defined:

[OperationContract]
List<EntityDB> GetPasswds();

The metho

Hi All again,

I have a few questions and problems again... I found that if I want to search in a datagrid I have to define datagridview. Is it right?http://msdn.microsoft.com/en-us/library/ff407126.aspx

I have a generated class called EntityDB which properties are used in my datagrid and which porperties are get via webservice. In my previous topic I get help about how to use the ObservableCollection. If I want to define a datagridview in tha above link I found that I have to define my class as an inherited class from ObsevableCollection. As my class is generated I shouldn't modify it by hand to be an inherited class.

I think I should define a class at client side which will inherite from ObservableCollection and somehow in that class I should handle my original properties from EntityDB. What do you think about it? How would you do this?

An other question about the example in the msdn link above:

In that exam

I think I am missing something basic here.. But could someone show me what I am doing incorrectly?

MainWindow.xaml.cs

  public partial class MainWindow : Window
  {
    public ObservableCollection<string> TestOC = new ObservableCollection<string> { "First" };

    public MainWindow()
    {
      InitializeComponent();
      TestOC.Add("Second");     
    }

 the XAML file:

<Window x:Class="WpfApplication2.MainWindow"
    ...">
  <Grid>
    <ListView ItemsSource="{Binding TestOC}"/>
  </Grid>
</Window>

Shouldn't that just work?

ObservableCollection Binding in WPF

public class Graphics : ObservableCollection<Graphic>
{
public Graphics()
{
}
}

<MyOtherClassInstance>
 <Graphics>
  <Graphic id="1">
  <Graphic id="2">
  <Graphic id="3">
 </Graphics>
</MyOtherClassInstance>

<MyOtherClassInstance>
 <Gs>
  <Gr id="1">
  <Gr id="2">
  <Gr id="3">
 </Gs>
</MyOtherClassInstance>

public class Graphics : ObservableCollection<Graphic>
{
public Graphics()
{
}
}

<MyOtherClassInstance>
 <Graphics>
  <Graphic id="1">
  <Graphic id="2">
  <Graphic id="3">
 </Graphics>
</MyOtherClassInstance>

<MyOtherClassInstance>
 <Gs>
  <Gr id="1">
  <Gr id="2">
  <Gr id="3">
 </Gs>
</MyOtherClassInstance>

<ListBox x:Name="listbox1" ItemContainerStyle="{DynamicResource ListBoxItemStyle2}" ItemsSource="{Binding Hosts}">
  <ListBox.Template>
  	<ControlTemplate TargetType="{x:Type ListBox}">
  		<WpfApplication7:CircularPanel AngleItem="{Binding Angle}" IsItemsHost="True"/>			
	</ControlTemplate> 		
  </ListBox.Template>
</ListBox>

<Style x:Key="ListBoxItemStyle2" TargetType="{x:Type ListBoxItem}">
	<Setter Property="Template">
		<Setter.Value

<Window x:Class="TestCombo.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="Window1" Height="300" Width="300">
  <StackPanel Orientation="Horizontal">
    <StackPanel.Resources>