Working with ObservableCollection<T>

Sanjay Menakuru

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17 Dec 2009CPOL3 min read

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One of the most useful classes when working with WPF can be found in the System.ComponentModel namespace, namely the ObservableCollection

viewablecollectiondemo.zip
- ViewableCollectionDemo.html
- ViewableCollectionDemo.zip
- ViewableCollectionDemo
  - ViewableCollectionDemo.sln
  - ViewableCollectionDemo
    - app.config
    - App.xaml
    - App.xaml.cs
    - bin
      - Debug
      - Release
    - MainWindow.xaml
    - MainWindow.xaml.cs
    - obj
      - x86
        
        Debug
        
        TempPE
        
        Properties.Resources.Designer.cs.dll
        
        Release
        
        App.g.cs
        
        GeneratedInternalTypeHelper.g.cs
        
        GenerateResource-ResGen.read.1.tlog
        
        GenerateResource-ResGen.write.1.tlog
        
        MainWindow.baml
        
        MainWindow.g.cs
        
        TempPE
        
        Properties.Resources.Designer.cs.dll
        
        ViewableCollectionDemo.csproj.FileListAbsolute.txt
        
        ViewableCollectionDemo.g.resources
        
        ViewableCollectionDemo.pdb
        
        ViewableCollectionDemo.Properties.Resources.resources
        
        ViewableCollectionDemo_MarkupCompile.cache
        
        ViewableCollectionDemo_MarkupCompile.lref
    - Properties
    - ViewableCollectionDemo.csproj
    - ViewableCollectionDemo.csproj.user
    - ViewModels
      - Application
        
        ContactViewModel.cs
        
        MainWindowViewModel.cs
      - ObjectModel
        
        ObservableObject.cs
        
        ViewableCollection.cs

C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\bin\Release\ViewableCollectionDemo.exe
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\bin\Release\ViewableCollectionDemo.pdb
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\ResolveAssemblyReference.cache
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\MainWindow.baml
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\MainWindow.g.cs
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\App.g.cs
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\ViewableCollectionDemo_MarkupCompile.cache
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\ViewableCollectionDemo.g.resources
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\ViewableCollectionDemo.Properties.Resources.resources
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\GenerateResource-ResGen.read.1.tlog
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\GenerateResource-ResGen.write.1.tlog
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\ViewableCollectionDemo.exe
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\ViewableCollectionDemo.pdb
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\GeneratedInternalTypeHelper.g.cs
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\obj\x86\Release\ViewableCollectionDemo_MarkupCompile.lref
C:\Users\Sanjay\documents\visual studio 10\Projects\ViewableCollectionDemo\ViewableCollectionDemo\bin\Release\ViewableCollectionDemo.exe.config

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By

Sanjay Menakuru

Software Developer N/A

Canada

Sanjay was weaned on VB6, then was dragged kicking and screaming into the world of .NET development, with VB.NET. He was pleasantly surprised, and quickly migrated existing projects to reap the benefits of the massive .NET libraries.

Quite a while ago, he started a pet project that involved fading in and out controls (as well as other animations) in a Windows Forms application. After weeks of hard work, he finally realized that there had to be a better way.

He found WPF.

He changed his main programming language to C#, and has never looked back.

Working with ObservableCollection<T>

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