Microsoft.VisualStudio.Project.ProjectNode.RunWizard C# (CSharp) Method

        public virtual VSADDRESULT RunWizard(HierarchyNode parentNode, string itemName, string wizardToRun, IntPtr dlgOwner)
        {
            Debug.Assert(!String.IsNullOrEmpty(itemName), "The Add item dialog was passing in a null or empty item to be added to the hierrachy.");
            Debug.Assert(!String.IsNullOrEmpty(this.ProjectFolder), "The Project Folder is not specified for this project.");

            if (parentNode == null)
            {
                throw new ArgumentNullException("parentNode");
            }

            if (String.IsNullOrEmpty(itemName))
            {
                throw new ArgumentNullException("itemName");
            }

            // We just validate for length, since we assume other validation has been performed by the dlgOwner.
            if (this.ProjectFolder.Length + itemName.Length + 1 > NativeMethods.MAX_PATH)
            {
                string errorMessage = String.Format(CultureInfo.CurrentCulture, SR.GetString(SR.PathTooLong, CultureInfo.CurrentUICulture), itemName);
                if (!Utilities.IsInAutomationFunction(this.Site))
                {
                    string title = null;
                    OLEMSGICON icon = OLEMSGICON.OLEMSGICON_CRITICAL;
                    OLEMSGBUTTON buttons = OLEMSGBUTTON.OLEMSGBUTTON_OK;
                    OLEMSGDEFBUTTON defaultButton = OLEMSGDEFBUTTON.OLEMSGDEFBUTTON_FIRST;
                    VsShellUtilities.ShowMessageBox(this.Site, title, errorMessage, icon, buttons, defaultButton);
                    return VSADDRESULT.ADDRESULT_Failure;
                }
                else
                {
                    throw new InvalidOperationException(errorMessage);
                }
            }

            // Build up the ContextParams safearray
            //  [0] = Wizard type guid  (bstr)
            //  [1] = Project name  (bstr)
            //  [2] = ProjectItems collection (bstr)
            //  [3] = Local Directory (bstr)
            //  [4] = Filename the user typed (bstr)
            //  [5] = Product install Directory (bstr)
            //  [6] = Run silent (bool)

            object[] contextParams = new object[7];
            contextParams[0] = EnvDTE.Constants.vsWizardAddItem;
            contextParams[1] = this.Caption;
            object automationObject = parentNode.GetAutomationObject();
            if (automationObject is EnvDTE.Project)
            {
                EnvDTE.Project project = (EnvDTE.Project)automationObject;
                contextParams[2] = project.ProjectItems;
            }
            else
            {
                // This would normally be a folder unless it is an item with subitems
                EnvDTE.ProjectItem item = (EnvDTE.ProjectItem)automationObject;
                contextParams[2] = item.ProjectItems;
            }

            contextParams[3] = this.ProjectFolder;

            contextParams[4] = itemName;

            object objInstallationDir = null;
            IVsShell shell = (IVsShell)this.GetService(typeof(IVsShell));
            ErrorHandler.ThrowOnFailure(shell.GetProperty((int)__VSSPROPID.VSSPROPID_InstallDirectory, out objInstallationDir));
            string installDir = (string)objInstallationDir;

            // append a '\' to the install dir to mimic what the shell does (though it doesn't add one to destination dir)
            if (!installDir.EndsWith("\\", StringComparison.Ordinal))
            {
                installDir += "\\";
            }

            contextParams[5] = installDir;

            contextParams[6] = true;

            IVsExtensibility3 ivsExtensibility = this.GetService(typeof(IVsExtensibility)) as IVsExtensibility3;
            Debug.Assert(ivsExtensibility != null, "Failed to get IVsExtensibility3 service");
            if (ivsExtensibility == null)
            {
                return VSADDRESULT.ADDRESULT_Failure;
            }

            // Determine if we have the trust to run this wizard.
            IVsDetermineWizardTrust wizardTrust = this.GetService(typeof(SVsDetermineWizardTrust)) as IVsDetermineWizardTrust;
            if (wizardTrust != null)
            {
                Guid guidProjectAdding = Guid.Empty;
                ErrorHandler.ThrowOnFailure(wizardTrust.OnWizardInitiated(wizardToRun, ref guidProjectAdding));
            }

            int wizResultAsInt;
            try
            {
                Array contextParamsAsArray = contextParams;
                Array customParamsAsArray = GetWizardCustomParams(parentNode, itemName);

                int result = ivsExtensibility.RunWizardFileEx(wizardToRun, (int)dlgOwner, ref contextParamsAsArray, ref customParamsAsArray, out wizResultAsInt);

                if (!ErrorHandler.Succeeded(result) && result != VSConstants.OLE_E_PROMPTSAVECANCELLED)
                {
                    ErrorHandler.ThrowOnFailure(result);
                }
            }
            finally
            {
                if (wizardTrust != null)
                {
                    ErrorHandler.ThrowOnFailure(wizardTrust.OnWizardCompleted());
                }
            }

            EnvDTE.wizardResult wizardResult = (EnvDTE.wizardResult)wizResultAsInt;

            switch (wizardResult)
            {
                default:
                    return VSADDRESULT.ADDRESULT_Cancel;
                case wizardResult.wizardResultSuccess:
                    return VSADDRESULT.ADDRESULT_Success;
                case wizardResult.wizardResultFailure:
                    return VSADDRESULT.ADDRESULT_Failure;
            }
        }