Microsoft.VisualStudio.Project.ProjectElement.GetFullPathForElement C# (CSharp) Method

        public string GetFullPathForElement()
        {
            if (HasItemBeenDeleted)
                throw new InvalidOperationException("The item has been deleted.");

            string path = this.GetMetadata(ProjectFileConstants.Include);
            if(!Path.IsPathRooted(path))
                path = Path.Combine(this.ProjectManager.ProjectFolder, path);

            // If any part of the path used relative paths, resolve this now
            path = Path.GetFullPath(path);
            return path;
        }

        protected internal void RunVsTemplateWizard(ProjectElement element, bool silent)
        {
            ProjectElement elementToUse = (element == null) ? this.nestedProjectElement : element;

            if (elementToUse == null)
            {
                throw new ArgumentNullException("element");
            }
            this.nestedProjectElement = elementToUse;

            Automation.OAProject oaProject = GetAutomationObject() as Automation.OAProject;
            if (oaProject == null || oaProject.ProjectItems == null)
            {
                throw new System.InvalidOperationException(SR.GetString(SR.InvalidAutomationObject, CultureInfo.CurrentUICulture));
            }
            Debug.Assert(oaProject.Object != null, "The project automation object should have set the Object to the SolutionFolder");
            Automation.OASolutionFolder <ProjectContainerNode> folder = oaProject.Object as Automation.OASolutionFolder <ProjectContainerNode>;

            // Prepare the parameters to pass to RunWizardFile
            string destination = elementToUse.GetFullPathForElement();
            string template    = this.GetProjectTemplatePath(elementToUse);

            object[] wizParams = new object[7];
            wizParams[0] = EnvDTE.Constants.vsWizardAddSubProject;
            wizParams[1] = Path.GetFileNameWithoutExtension(destination);
            wizParams[2] = oaProject.ProjectItems;
            wizParams[3] = Path.GetDirectoryName(destination);
            wizParams[4] = Path.GetFileNameWithoutExtension(destination);
            wizParams[5] = Path.GetDirectoryName(folder.DTE.FullName);             //VS install dir
            wizParams[6] = silent;

            IVsDetermineWizardTrust wizardTrust = this.GetService(typeof(SVsDetermineWizardTrust)) as IVsDetermineWizardTrust;

            if (wizardTrust != null)
            {
                Guid guidProjectAdding = Guid.Empty;

                // In case of a project template an empty guid should be added as the guid parameter. See env\msenv\core\newtree.h IsTrustedTemplate method definition.
                ErrorHandler.ThrowOnFailure(wizardTrust.OnWizardInitiated(template, ref guidProjectAdding));
            }

            try
            {
                // Make the call to execute the wizard. This should cause AddNestedProjectFromTemplate to be
                // called back with the correct set of parameters.
                EnvDTE.IVsExtensibility extensibilityService = (EnvDTE.IVsExtensibility)GetService(typeof(EnvDTE.IVsExtensibility));
                EnvDTE.wizardResult     result = extensibilityService.RunWizardFile(template, 0, ref wizParams);
                if (result == EnvDTE.wizardResult.wizardResultFailure)
                {
                    throw new COMException();
                }
            }
            finally
            {
                if (wizardTrust != null)
                {
                    ErrorHandler.ThrowOnFailure(wizardTrust.OnWizardCompleted());
                }
            }
        }