• while creating a new query

    an error accurred while the query design method was being saved.  An item with the same key has already been added

    • Edited by idontknowu Monday, May 9, 2016 8:31 PM
    Monday, May 9, 2016 8:30 PM

All replies

  • Hi idontknowu,

    This forum is discuss Visual Studio WPF/SL Designer, Visual Studio Guidance Automation Toolkit, Developer Documentation and Help System, and Visual Studio Editor.

    According to your description, do you get errors when create a new query with T-SQL, is it right? Please tell us which tools do you used to create the new query, Visual Studio or SQL Server Management Studio?

    Please provide the detailed error message to help us understanding your problem.

    >> An item with the same key has already been added

    Based on these error message, please check whether there has the same key in your exist table. Please right-click every table in the same database to view its design, which will list all columns, keys and so on in the deign viewer.

    If misunderstanding, please feel free to let me know.

    Best Regards,

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    Tuesday, May 10, 2016 7:16 AM