C# SSMS 2012 Add-ObjectExplorerService在SSMSAddinDenali中不可用

此问题涉及此处找到的SSMSAddinDenali SQL Server Management Studio 2012加载项。我无法在尝试构建SSMS 2012加载项时使用.Net 4.0/4.5实现IObjectExplorerService。我想知道是否有人可以公开更多关于连接ObjectExplorerService的信息；如何在数据库表上下文菜单中创建菜单项。我收到此错误（无法将类型Microsoft.SqlServer.Management.SqlStudio.Object.ObjectExplorerService强制转换为类型Microsoft.SqlServer.Management.SqlStudio.Object.ContextService）

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我需要更新的重要参考资料，以便进行构建：

Microsoft.SqlServer.Management.SDK.SqlStudio
C:\Program Files（x86）\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\Microsoft.SqlServer.Management.Sdk.SqlStudio.dll版本11.0.0.0

Microsoft.SqlServer.Management.SqlStudio.Explorer
C:\ProgramFiles（x86）\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\Extensions\Application\Microsoft.SqlServer.Management.SqlStudio.Explorer.dll11.0.0版

SqlPackageBase
C:\ProgramFiles（x86）\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\SqlPackageBase.dll11.0.0.0版

SqlManagerUI
C:\ProgramFiles（x86）\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\SQLManagerUI.dll11.0.0.0版

SqlWorkbench.Interfaces
C:\ProgramFiles（x86）\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\SqlWorkbench.Interfaces.dll11.0.0.0版

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在我构建我的加载项并在SSMS 2012中运行它之后，我的try-catch出现了这个错误，代码如下所示

任何进一步的帮助都将不胜感激

public void OnConnection(object application, ext_ConnectMode connectMode, object addInInst, ref Array custom)
{


    //debug_message("OnConnection::");

    //_applicationDTE = (DTE)application;
    //_applicationObject = (DTE2)application;
    //_addInInstance = (AddIn)addInInst;
    //return;


    //if (connectMode == ext_ConnectMode.ext_cm_UISetup)
    //{
    //    object[] contextGUIDS = new object[] { };
    //    Commands2 commands = (Commands2)_applicationObject.Commands;
    //    string toolsMenuName = "Tools";

    //    //Place the command on the tools menu.
    //    //Find the MenuBar command bar, which is the top-level command bar holding all the main menu items:
    //    Microsoft.VisualStudio.CommandBars.CommandBar menuBarCommandBar = ((Microsoft.VisualStudio.CommandBars.CommandBars)_applicationObject.CommandBars)["MenuBar"];

    //    //Find the Tools command bar on the MenuBar command bar:
    //    CommandBarControl toolsControl = menuBarCommandBar.Controls[toolsMenuName];
    //    CommandBarPopup toolsPopup = (CommandBarPopup)toolsControl;

    //    //This try/catch block can be duplicated if you wish to add multiple commands to be handled by your Add-in,
    //    //  just make sure you also update the QueryStatus/Exec method to include the new command names.
    //    try
    //    {
    //        //Add a command to the Commands collection:
    //        // add + (int)vsCommandStatus.vsCommandStatusEnabled if we want the default state to be enabled
    //        Command command = commands.AddNamedCommand2(_addInInstance, "FormatSQL", "Format SQL", "Executes the command for SSMSAddinDenali", true, 59, ref contextGUIDS, (int)vsCommandStatus.vsCommandStatusSupported + (int)vsCommandStatus.vsCommandStatusEnabled, (int)vsCommandStyle.vsCommandStylePictAndText, vsCommandControlType.vsCommandControlTypeButton);

    //        //Add a control for the command to the tools menu:
    //        if ((command != null) && (toolsPopup != null))
    //        {
    //            command.AddControl(toolsPopup.CommandBar, 1);
    //        }
    //    }
    //    catch (System.ArgumentException)
    //    {
    //        //If we are here, then the exception is probably because a command with that name
    //        //  already exists. If so there is no need to recreate the command and we can 
    //        //  safely ignore the exception.
    //    }
    //}



    #region Object Explorer Context Event
    try
    {
        /* Microsoft.SqlServer.Management.UI.VSIntegration.ServiceCache
         * is from SqlPackageBase.dll and not from Microsoft.SqlServer.SqlTools.VSIntegration.dll
         * the code below just throws null exception if you have wrong reference */
        ObjectExplorerService objExplorerService;
        ContextService cs;
        NavigationService ns;


        objExplorerService = (ObjectExplorerService)ServiceCache.ServiceProvider.GetService(typeof(Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.IObjectExplorerService));

        cs = (ContextService)objExplorerService.Container.Components[0];
        //cs.ObjectExplorerContext.CurrentContextChanged += new NodesChangedEventHandler(ObjectExplorerContext_CurrentContextChanged);
        //cs.UtilityExplorerContext.CurrentContextChanged += new NodesChangedEventHandler(UtilityExplorerContext_CurrentContextChanged);

        ns = (NavigationService)objExplorerService.Container.Components[1];
        //objExploreS = (ObjectExplorerService)objExplorerService.Container.Components[2];
        //sqlStudioExplorer = new SqlStudioExplorer();


        //ObjectExplorerService objExplorerService = (ObjectExplorerService)ServiceCache.ServiceProvider.GetService(typeof(IObjectExplorerService));
        //INodeInformation node = objExplorerService.FindNode(cs.Context);
        //if (node.Parent.InvariantName.Equals("Databases"))
        //{
        //    if (_databaseMenu == null)
        //    {
        //        string value = typeof(IMenuHandler).ToString();

        //        _databaseMenu = (HierarchyObject)node.GetService(typeof(IMenuHandler));
        //        String wtf = _databaseMenu.ToString();
        //        RestoreMenuItem rst = new RestoreMenuItem();
        //        _databaseMenu.AddChild(string.Empty, rst);
        //    }

        //}
        //ContextService cs = (ContextService)objExplorerService.Container.Components[0];

        //cs.ObjectExplorerContext.CurrentContextChanged += new NodesChangedEventHandler(Provider_SelectionChanged); 

        // for some reason calling GetSelectedNodes forces to add ContextService to ObjectExplorerService.Container.Components
        //int count = objExplorerService.Container.Components.Count;
        //int nodeCount; INodeInformation[] nodes;
        //objExplorerService.GetSelectedNodes(out nodeCount, out nodes);
        //count = nodeCount; count = nodes.Length;
        //count = objExplorerService.Container.Components.Count;

        //ContextService contextService = (ContextService)objExplorerService.Container.Components[1];
        //INavigationContextProvider provider = contextService.ObjectExplorerContext;

        //provider.CurrentContextChanged += new NodesChangedEventHandler(Provider_SelectionChanged);


    }
    catch (Exception ex)
    {
        MessageBox.Show("OnConnection::ERROR " + ex.Message);
    }
    #endregion
}

试着这样做：

_contextService = (ContextService) ServiceCache.ServiceProvider.GetService(typeof (IContextService));
_contextService.ActionContext.CurrentContextChanged += ActionContextOnCurrentContextChanged;

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我从坟墓里知道这个。您的问题是因为在数组中，objExplorerService.Container.Components ContextService并不总是数组中的第一个元素。在我的工作站上，您拥有的代码可以工作，但当我将我的ssms加载项提供给其他人时，它无法工作，因为NavigationServer位于元素[0]。当然，在下面的示例中，您需要删除我的日志记录和其他内容，但如果您一年前没有放弃，这应该会让您继续

objExplorerService = (ObjectExplorerService)ServiceCache.ServiceProvider.GetService(typeof(IObjectExplorerService));
                    //cs = (ContextService)objExplorerService.Container.Components[0];
                    //cs.ObjectExplorerContext.CurrentContextChanged += new NodesChangedEventHandler(ObjectExplorerContext_CurrentContextChanged);
                    // cs.UtilityExplorerContext.CurrentContextChanged += new NodesChangedEventHandler(UtilityExplorerContext_CurrentContextChanged);

                    int count = objExplorerService.Container.Components.Count;

                    int nodeCount; INodeInformation[] nodes;

                    objExplorerService.GetSelectedNodes(out nodeCount, out nodes);
                    count = nodeCount; count = nodes.Length;
                    count = objExplorerService.Container.Components.Count;
                    ContextService contextService;
                    try
                    {
                         contextService = (ContextService)objExplorerService.Container.Components[1];
                    }
                    catch (Exception ex)
                    {
                        using (StreamWriter w = File.AppendText("c:\\temp\\log.txt"))
                        {
                            Log(ex.Message, w);
                            Log("Failed Adding Event ", w);
                        }
                        contextService = (ContextService)objExplorerService.Container.Components[0];

                    }
                    INavigationContextProvider provider = contextService.ObjectExplorerContext;
                    provider.CurrentContextChanged += new NodesChangedEventHandler(ObjectExplorerContext_CurrentContextChanged);

---

尝试将代码放在ext_ConnectMode.ext_cm_ui设置中

if (connectMode == ext_ConnectMode.ext_cm_UISetup)
{
   // < Your code here > 
}
else if (connectMode == ext_ConnectMode.ext_cm_AfterStartup)
{
   ...
}

if（connectMode==ext\u connectMode.ext\u cm\u ui设置）
{
//<您的代码在这里>
}
else if（connectMode==ext\u connectMode.ext\u cm\u afterstart）
{
...
}

这可能会为您指明正确的方向。我有一个类似的问题，这帮助我解决了它。