Gotcha: Wokflow designer not working when openning workflow in non-workflow VS 2005 project

jiangxng

于 2008-06-04 18:04:00 发布

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文章标签： workflow microsoft service file import windows

本文链接：https://blog.youkuaiyun.com/jiangxng/article/details/2511831

本文介绍了解决在Visual Studio 2005中复制工作流图到另一个项目后，无法在设计器中打开的问题。提供了两种解决方案：一是创建新的工作流项目并迁移文件；二是修改项目文件(.csproj)以支持工作流。

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If you worked with Windows Workflow before on Visual Studio 2005, copied a workflow diagram from a workflow project into a second normal project, added the proper references, built the second project and everything, but afterwards tried to open the workflow diagram in designer, and it didn't work, giving you an error message like tis one:

The service 'System.Workflow.ComponentModel.Design.IIdentifierCreationService' must be installed for this operation to succeed. Ensure that this service is available.

You can solve this by one of two ways:

Create a 3rd project as workflow project and move everything from the 2nd project to it. [Sounds like Microsoft recommendation - I hate that one though]
Modify the .csproj file file to add the lines in green under the black lines:

<AssemblyName>ASEEMBLY_NAME_HERE__TYPICALLY _SAME_AS_PROJECT_FILE</AssemblyName>
<ProjectTypeGuids>{14822709-B5A1-4724-98CA-57A101D1B079};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
</PropertyGroup>
<Import Project="$(MSBuildExtensionsPath)/Microsoft/Windows Workflow Foundation/v3.0/Workflow.Targets" />