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

        public virtual int Save(string fileToBeSaved, int remember, uint formatIndex)
        {
            // The file name can be null. Then try to use the Url.
            string tempFileToBeSaved = fileToBeSaved;
            if (String.IsNullOrEmpty(tempFileToBeSaved) && !String.IsNullOrEmpty(this.Url))
            {
                tempFileToBeSaved = this.Url;
            }

            if (String.IsNullOrEmpty(tempFileToBeSaved))
            {
                throw new ArgumentException(SR.GetString(SR.InvalidParameter, CultureInfo.CurrentUICulture), "fileToBeSaved");
            }

            bool setProjectFileDirtyAfterSave = false;
            if (remember == 0)
            {
                setProjectFileDirtyAfterSave = this.IsProjectFileDirty;
            }

            // Update the project with the latest flavor data (if needed)
            PersistXMLFragments();

            int result = VSConstants.S_OK;
            bool saveAs = true;
            if (NativeMethods.IsSamePath(tempFileToBeSaved, this.filename))
            {
                saveAs = false;
            }
            if (!saveAs)
            {
                SuspendFileChanges fileChanges = new SuspendFileChanges(this.Site, this.filename);
                fileChanges.Suspend();
                try
                {
                    // Ensure the directory exist
                    string saveFolder = Path.GetDirectoryName(tempFileToBeSaved);
                    if (!Directory.Exists(saveFolder))
                        Directory.CreateDirectory(saveFolder);
                    // Save the project
                    this.buildProject.Save(tempFileToBeSaved);
                    this.SetProjectFileDirty(false);
                }
                finally
                {
                    fileChanges.Resume();
                }
            }
            else
            {
                result = this.SaveAs(tempFileToBeSaved);
                if (result != VSConstants.OLE_E_PROMPTSAVECANCELLED)
                {
                    ErrorHandler.ThrowOnFailure(result);
                }

            }

            if (setProjectFileDirtyAfterSave)
            {
                this.SetProjectFileDirty(true);
            }

            return result;
        }