Microsoft.VisualStudio.Project.FileChangeManager.FileChangeManager C# (CSharp) Method

        public FileChangeManager(IServiceProvider serviceProvider)
        {
            #region input validation
            if(serviceProvider == null)
            {
                throw new ArgumentNullException("serviceProvider");
            }
            #endregion

            this.fileChangeService = (IVsFileChangeEx)serviceProvider.GetService(typeof(SVsFileChangeEx));

            if(this.fileChangeService == null)
            {
                // VS is in bad state, since the SVsFileChangeEx could not be proffered.
                throw new InvalidOperationException();
            }
        }