Microsoft.VisualStudio.Project.ProjectContainerNode.GetProjectTemplatePath C# (CSharp) Method

        protected virtual string GetProjectTemplatePath(ProjectElement element)
        {
            ProjectElement elementToUse = (element == null) ? this.nestedProjectElement : element;

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

            string templateFile = elementToUse.GetMetadata(ProjectFileConstants.Template);
            Debug.Assert(!String.IsNullOrEmpty(templateFile), "No template file has been specified in the template attribute in the project file");

            string fullPath = templateFile;
            if(!Path.IsPathRooted(templateFile))
            {
                RegisteredProjectType registeredProjectType = this.GetRegisteredProject(elementToUse);

                // This is not a full path
                Debug.Assert(registeredProjectType != null && (!String.IsNullOrEmpty(registeredProjectType.DefaultProjectExtensionValue) || !String.IsNullOrEmpty(registeredProjectType.WizardTemplatesDirValue)), " Registered wizard directory value not set in the registry.");

                // See if this specify a VsTemplate file
                fullPath = registeredProjectType.GetVSTemplateFile(templateFile);
                if(String.IsNullOrEmpty(fullPath))
                {
                    // Default to using the WizardTemplateDir to calculate the absolute path
                    fullPath = Path.Combine(registeredProjectType.WizardTemplatesDirValue, templateFile);
                }
            }

            return fullPath;
        }