如何：创建 SharePoint 项目扩展

2013-02-21

当您希望向在 Visual Studio 中打开的任何 SharePoint 项目添加功能时，可创建一个项目扩展。有关更多信息，请参见扩展 SharePoint 项目系统。

创建项目扩展

创建一个类库项目。
添加对下列程序集的引用：
- Microsoft.VisualStudio.SharePoint
- System.ComponentModel.Composition
创建一个实现 ISharePointProjectExtension 接口的类。
将 System.ComponentModel.Composition.ExportAttribute 添加到该类中。此特性使 Visual Studio 能够发现并加载您的 ISharePointProjectExtension 实现。将 ISharePointProjectExtension 类型传递给特性构造函数。
在 Initialize 方法的实现中，使用 projectService 参数的成员来定义扩展的行为。此参数是一个 ISharePointProjectService 对象，它提供对 ISharePointProjectEvents 接口中定义的事件的访问。

示例

下面的代码示例演示如何创建一个简单的项目扩展，此扩展将处理由 ISharePointProjectEvents 接口定义的大多数 SharePoint 项目事件。若要测试代码，请在 Visual Studio 中创建一个 SharePoint 项目，然后向解决方案中添加更多项目，更改项目属性值，或者删除或排除项目。该扩展通过在**“输出”窗口和“错误列表”**窗口中写入消息，通知您有关事件。

Imports Microsoft.VisualStudio.SharePoint
Imports System.ComponentModel
Imports System.ComponentModel.Composition

Namespace Contoso.ExampleProjectExtension
    <Export(GetType(ISharePointProjectExtension))> _
    Class ExampleProjectExtension
        Implements ISharePointProjectExtension

        Private WithEvents projectService As ISharePointProjectService

        Public Sub Initialize(ByVal projectService As ISharePointProjectService) _
            Implements ISharePointProjectExtension.Initialize
            Me.projectService = projectService
        End Sub

        ' A project was added.
        Private Sub projectService_ProjectAdded(ByVal sender As Object, ByVal e As SharePointProjectEventArgs) _
            Handles projectService.ProjectAdded
            Dim project As ISharePointProject = CType(sender, ISharePointProject)
            Dim message As String = String.Format("The following project was added: {0}", e.Project.Name)
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message)
        End Sub

        ' A project was loaded in the IDE.
        Private Sub projectService_ProjectInitialized(ByVal sender As Object, ByVal e As SharePointProjectEventArgs) _
            Handles projectService.ProjectInitialized
            Dim project As ISharePointProject = CType(sender, ISharePointProject)
            Dim message As String = String.Format("The following project is being initialized: {0}", e.Project.Name)
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message)
        End Sub

        ' The name of a property was changed.
        Private Sub projectService_ProjectNameChanged(ByVal sender As Object, ByVal e As NameChangedEventArgs) _
            Handles projectService.ProjectNameChanged
            Dim project As ISharePointProject = CType(sender, ISharePointProject)
            Dim message As String = String.Format("The project named {0} was changed to {1}.", e.OldName, project.Name)
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message)
        End Sub

        ' A project property value was changed.
        Private Sub ProjectPropertyChanged(ByVal sender As Object, ByVal e As PropertyChangedEventArgs) _
            Handles projectService.ProjectPropertyChanged
            Dim project As ISharePointProject = CType(sender, ISharePointProject)
            Dim message As String = String.Format("The following property of the {0} project was changed: {1}",
                project.Name, e.PropertyName)
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message)
        End Sub

        ' A project is being removed or unloaded.
        Private Sub projectService_ProjectRemoved(ByVal sender As Object, ByVal e As SharePointProjectEventArgs) _
            Handles projectService.ProjectRemoved
            Dim project As ISharePointProject = CType(sender, ISharePointProject)
            Dim message As String = String.Format("The following project is being removed or unloaded: {0}", e.Project.Name)
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message)
        End Sub

        ' A project was removed or unloaded.
        Private Sub projectService_ProjectDisposing(ByVal sender As Object, ByVal e As SharePointProjectEventArgs) _
            Handles projectService.ProjectDisposing
            Dim project As ISharePointProject = CType(sender, ISharePointProject)
            Dim message As String = String.Format("The following project was removed or unloaded: {0}", e.Project.Name)
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message)
        End Sub
    End Class
End Namespace

using Microsoft.VisualStudio.SharePoint;
using System;
using System.ComponentModel;
using System.ComponentModel.Composition;

namespace Contoso.ExampleProjectExtension
{
    [Export(typeof(ISharePointProjectExtension))]
    internal class ExampleProjectExtension : ISharePointProjectExtension
    {
        public void Initialize(ISharePointProjectService projectService)
        {
            projectService.ProjectAdded += projectService_ProjectAdded;
            projectService.ProjectInitialized += projectService_ProjectInitialized;
            projectService.ProjectNameChanged += projectService_ProjectNameChanged;
            projectService.ProjectPropertyChanged += projectService_ProjectPropertyChanged;
            projectService.ProjectRemoved += projectService_ProjectRemoved;
            projectService.ProjectDisposing += projectService_ProjectDisposing;
        }

        // A project was added.
        void projectService_ProjectAdded(object sender, SharePointProjectEventArgs e)
        {
            ISharePointProject project = (ISharePointProject)sender;
            string message = String.Format("The following project was added: {0}", e.Project.Name);
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message);
        }

        // A project is loaded in the IDE.
        void projectService_ProjectInitialized(object sender, SharePointProjectEventArgs e)
        {
            ISharePointProject project = (ISharePointProject)sender;
            string message = String.Format("The following project is being initialized: {0}", e.Project.Name);
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message);
        }

        // The name of a project was changed.
        void projectService_ProjectNameChanged(object sender, NameChangedEventArgs e)
        {
            ISharePointProject project = (ISharePointProject)sender;
            string message = String.Format("The project named {0} was changed to {1}.", e.OldName, project.Name);
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message);
        }

        // A project property value was changed.
        private void projectService_ProjectPropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            ISharePointProject project = (ISharePointProject)sender;
            string message = String.Format("The following property of the {0} project was changed: {1}", 
                project.Name, e.PropertyName);
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message);
        }

        // A project is being removed or unloaded.
        void projectService_ProjectRemoved(object sender, SharePointProjectEventArgs e)
        {
            ISharePointProject project = (ISharePointProject)sender;
            string message = String.Format("The following project is being removed or unloaded: {0}", e.Project.Name);
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message);
        }

        // A project was removed or unloaded.
        void projectService_ProjectDisposing(object sender, SharePointProjectEventArgs e)
        {
            ISharePointProject project = (ISharePointProject)sender;
            string message = String.Format("The following project was removed or unloaded: {0}", e.Project.Name);
            project.ProjectService.Logger.WriteLine(message, LogCategory.Message);
        }
    }
}

此示例使用 SharePoint 项目服务将消息写入到**“输出”窗口和“错误列表”**窗口。有关更多信息，请参见使用 SharePoint 项目服务。

有关演示如何处理 ProjectMenuItemsRequested 和 ProjectPropertiesRequested 事件的示例，请参见如何：向 SharePoint 项目中添加快捷菜单项和如何：向 SharePoint 项目中添加属性。