问题描述
我正在研究创建数据访问和业务"中的演练"ASP.NET中的逻辑层"在帮助中.一切顺利，直到我将Linq添加到SQL数据中为止 部分.
I was working on the walkthrough on "Creating the Data Access and Business Logic Layers in ASP.NET" in help. All goes well until I get adding the Linq to SQL Data section.
添加LinqDataSource控件之后，DataContext对象列表中没有TasksDataContext对象. 如果我在ContextTypeName中键入TasksDataContext 控件的属性，然后TasksDataContext出现在DataContext对象列表中，但是当我单击下一步"按钮时，出现以下错误消息:
After adding the LinqDataSource control, the TasksDataContext object is not available in the DataContext objects list. If I type in TasksDataContext in the ContextTypeName property of the control, then TasksDataContext shows up in the DataContext objects list, but give me the following error message when I click the Next button:
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Microsoft Visual Studio
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无法加载类型'ShiftsDataContext'.如果类型位于App_Code文件夹中，请检查其是否可以编译.如果类型位于已编译的程序集中， 请检查项目是否引用了该程序集.
The type 'ShiftsDataContext' could not be loaded. If the type is located in the App_Code folder, please check that it compiles. If the type is located in a compiled assembly, please check that the assembly is referenced by the project.
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OK
OK
完成这项工作需要什么?
TIA
Ted
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