CollectionViewSource not sorting

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I am using collectionviewsource to sort the list in the xaml

HTML

<CollectionViewSource x:Uid="CollectionViewSource_1" x:Key='sortedList'
                              Source="{Binding Path=MyList}">
                <CollectionViewSource.SortDescriptions>
                    <scm:SortDescription x:Uid="scm:SortDescription_1" PropertyName="ID"
                                     Direction="Ascending" />
                </CollectionViewSource.SortDescriptions>
            </CollectionViewSource>

and the above collection resource is bounded to listview as below

HTML

<ListView x:Uid="myistBox" Name="myListBox" ItemsSource="{Binding Source={StaticResource sortedList}}"
                        SelectedItem="{Binding SelectedItem, Mode=TwoWay}"
                        Margin="5,10,5,5"
                        Grid.Row="1"
                        extenders:ListViewExtenders.AutoScrollToEnd="True"
                        SelectionMode="Single">
              <ListView.View>
                  <GridView x:Uid="GridView_1">
                      <GridViewColumn x:Uid="GridViewColumn_1" DisplayMemberBinding="{Binding Path=ID}" Header="ID" />
                      <GridViewColumn x:Uid="GridViewColumn_2" DisplayMemberBinding="{Binding Path=Name}" Header="Name"/>
                  </GridView>
              </ListView.View>
          </ListView>

and in my view model i have an Observable collection property of mylist

C#

public ObservableCollection<MyItem> MyList
        {
            get
            {
                return this.myList;
            }

            set
            {
                if (this.myList != value)
                {
                    this.myList = value;
                    OnPropertyChanged("MyList");
                }
            }
        }

and the Myitem class consist of two properties
ID and Name

so in my code when i change the id .. i am expecting the List to be sorted but this is not happening .. pls advice what is wrong in my implementation

Posted 7-Feb-12 22:00pm

arun_pk

Updated 10-Jun-18 8:58am

v2

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SteveAdey · Answer 1 · 2012-02-07T22:18:00

Solution 1

Make sure MyItem derives from INotifyPropertyChanged also and that the change to ID triggers a PropertyChanged event.

Posted 7-Feb-12 22:18pm

SteveAdey

Comments

arun_pk 8-Feb-12 4:44am

HiYes my ID property also has property changed event

public int ID
{
get
{
return this.id;
}

set
{
if (this.id!= value)
{
this.id= value;
}
OnPropertyChanged("ID");
}
}

slemaire195 · Answer 2 · 2018-06-10T09:00:00

For anyone else that has this issue and comes across this super-old post via Google:

For "live" sorting, in addition to setting up the SortDescriptions, you must also add LiveSortingProperties (which takes one or more strings, using the System namespace from WindowsBase assembly), and set IsLiveSortingRequested = True.

xmlns:s="clr-namespace:System;assembly=mscorlib"
xmlns:scm="clr-namespace:System.ComponentModel;assembly=WindowsBase"


<CollectionViewSource x:Key="ChannelsToAddView" x:Name="ChannelsToAddView" Source="{Binding DiscordChannels}"
                              Filter="ChannelsToAddView_Filter" IsLiveSortingRequested="True">
            <CollectionViewSource.SortDescriptions>
                <scm:SortDescription PropertyName="DiscordChannelName" />
            </CollectionViewSource.SortDescriptions>
            <CollectionViewSource.LiveSortingProperties>
                <s:String>DiscordChannelName</s:String>
            </CollectionViewSource.LiveSortingProperties>
        </CollectionViewSource>