VSPackages can be set to autoload when a particular user interface (UI) context exists. For example, a VSPackage can be set to load whenever a solution exists. The managed package framework (MPF) provides the ProvideAutoLoadAttribute attribute to set this context.
To set the UI context to autoload a VSPackage
- Add the ProvideAutoLoad attribute to the VSPackage attributes: - <DefaultRegistryRoot("Software\Microsoft\VisualStudio\10.0")> _ <PackageRegistration(UseManagedResourcesOnly:=True)> _ <ProvideAutoLoad("{f1536ef8-92ec-443c-9ed7-fdadf150da82}")> _ <Guid("2DB4D57F-746A-47df-AC04-81517556A929")> _ Public Class MyAutoloadedPackage Inherits Package- [DefaultRegistryRoot(@"Software\Microsoft\VisualStudio\10.0")] [PackageRegistration(UseManagedResourcesOnly = true)] [ProvideAutoLoad("{f1536ef8-92ec-443c-9ed7-fdadf150da82}")] [Guid("2DB4D57F-746A-47df-AC04-81517556A929")] public class MyAutoloadedPackage : Package- 备注 - You must pass the GUID value of UICONTEXT_SolutionExists to ProvideAutoLoad instead of its symbolic name. See the enumerated fields of VSConstants for a list of the UI contexts and their GUID values. 
To autoload the VSPackage
- Set a breakpoint in the Initialize method. 
- Build the VSPackage and start it from the debugger by pressing F5. 
- Load a solution or create one. - The VSPackage loads and stops at the breakpoint.