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Observer Design Pattern (Delegates/Events)

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9 Aug 2009CPOL3 min read 71.2K   589   67  
This article uses Delegates/Events to implement an Observer Design Pattern.
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    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>www.askbargains.com.ObserverDesignPatternLib</RootNamespace>
    <AssemblyName>www.askbargains.com.ObserverDesignPartternLib</AssemblyName>
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    <FileAlignment>512</FileAlignment>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
    <DebugType>pdbonly</DebugType>
    <Optimize>true</Optimize>
    <OutputPath>bin\Release\</OutputPath>
    <DefineConstants>TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="System" />
    <Reference Include="System.Core">
      <RequiredTargetFramework>3.5</RequiredTargetFramework>
    </Reference>
    <Reference Include="System.Xml.Linq">
      <RequiredTargetFramework>3.5</RequiredTargetFramework>
    </Reference>
    <Reference Include="System.Data.DataSetExtensions">
      <RequiredTargetFramework>3.5</RequiredTargetFramework>
    </Reference>
    <Reference Include="System.Data" />
    <Reference Include="System.Xml" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="FamilyDoctor.cs" />
    <Compile Include="Kid.cs" />
    <Compile Include="ObservableObject.cs" />
    <Compile Include="Parent.cs" />
    <Compile Include="Properties\AssemblyInfo.cs" />
    <Compile Include="Status.cs" />
  </ItemGroup>
  <ItemGroup>
    <None Include="ObserverClassDiagram.cd" />
  </ItemGroup>
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       Other similar extension points exist, see Microsoft.Common.targets.
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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
Architect
United States United States
Sr Software Architect.Microsoft Certified Solutions Developer (MCSD).

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