protected void Page_Load(object sender, EventArgs e) { System.Diagnostics.Stopwatch stopwatch = new Stopwatch(); stopwatch.Start(); // 开始监视代码 using (DNetContext db = new DNetContext()) { var author = db.GetSingle <Author>(m => true, q => q.OrderBy(m => m.AuthorID)); var book = db.GetSingle <Book>(m => ((DateTime)m.PublishDate).ToString("yyyy-MM-dd") == "2017-11-11"); var authors = db.GetList <Author>(m => string.IsNullOrEmpty(m.AuthorName) && m.IsValid == true); List <dynamic> name = db.GetDistinctList <Author>(m => m.AuthorName.StartsWith("jim") && m.IsValid == true, m => m.AuthorName + "aaa"); //List<string> name1 = db.GetDistinctList<Author, string>(m => m.AuthorName.IndexOf("jim") == 2 && m.IsValid == true, m => m.AuthorName); var books = db.GetList <Book>(m => SubQuery.GetList <Author>(n => n.AuthorID > 10, n => n.AuthorID).Contains(m.AuthorID)); books = db.GetList <Book>(m => m.AuthorID >= SubQuery.GetSingle <Author>(n => n.AuthorID == 10, n => n.AuthorID)); var authorid = db.GetMax <Author>(m => (int)m.AuthorID); WhereBuilder <Author> where = new WhereBuilder <Author>(); where.And(m => m.AuthorName.Contains("jim")); where.And(m => m.AuthorID == 3); where.Or(m => m.IsValid == true); db.GetList <Author>(where.WhereExpression); PageFilter <Author> page = new PageFilter <Author> { PageIndex = 1, PageSize = 10 }; page.And(m => "jim green".Contains(m.AuthorName)); page.OrderBy(q => q.OrderBy(m => m.AuthorName).OrderByDescending(m => m.AuthorID)); PageDataSource <Author> pageSource = db.GetPage <Author>(page); } stopwatch.Stop(); // 停止监视 TimeSpan timespan = stopwatch.Elapsed; // 获取当前实例测量得出的总时间 double milliseconds = timespan.TotalMilliseconds; // 总毫秒数 Response.Write("执行时间:" + milliseconds + "毫秒"); }
protected void Page_Load(object sender, EventArgs e) { System.Diagnostics.Stopwatch stopwatch = new Stopwatch(); stopwatch.Start(); // 开始监视代 using (DNetContext db = new DNetContext()) { var query = db.GetJoin <Book, Author>((m, n) => m.AuthorID == n.AuthorID && n.IsValid == true, (m, n) => m.Price > 10 && n.IsValid == true, (m, n) => new { BookName = m.BookName + n.AuthorName, n.AuthorName }); var books = db.JoinQuery.LeftJoin <Book, Author>((m, n) => m.AuthorID == n.AuthorID && n.IsValid == true) .Fields <Book, Author>((m, n) => new { BookName = m.BookName + "123", AuthorName = SqlFunctions.Count(n.AuthorName) }) .OrderByAsc <Book>(m => m.BookName) .GroupBy <Book, Author>((m, n) => new { m.BookName, n.AuthorName }) .Where <Book, Author>((m, n) => m.Price > 10 && n.IsValid == true && SubQuery.GetList <Author>(n1 => n1.AuthorID >= 1, n1 => n1.AuthorID).Contains(m.AuthorID)) .GetList <Book>(); var join = db.JoinQueryAlias.LeftJoin <Book, Author>((m, n) => m.AuthorID == n.AuthorID && n.IsValid == true) .InnerJoin <Book, Author>((m1, n) => m1.AuthorID == n.AuthorID && n.IsValid == true) .Fields <Book, Author>((m1, n) => new { AuthorName1 = m1.BookName + n.AuthorName, n }) .OrderByAsc <Book>(m => m.BookName); PageFilter page = new PageFilter { PageIndex = 1, PageSize = 10 }; //分页参数前台传来 var pagesource = join.GetPage <Book>(page); } stopwatch.Stop(); // 停止监视 TimeSpan timespan = stopwatch.Elapsed; // 获取当前实例测量得出的总时间 double milliseconds = timespan.TotalMilliseconds; // 总毫秒数 Response.Write("执行时间:" + milliseconds + "毫秒"); }