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())
{
StringBuilder sql = new StringBuilder();
List <DbParameter> parameters = new List <DbParameter>();
sql.AppendFormat(@"SELECT {0},A.AuthorName FROM Book B
LEFT JOIN Author A ON A.AuthorID=B.AuthorID WHERE", SqlBuilder.GetSelectAllFields <Book>("B"));
sql.Append(" B.BookID>@BookID ");
parameters.Add(db.GetDbParameter("BookID", 1));
PageFilter pageFilter = new PageFilter {
PageIndex = 1, PageSize = 5
};
pageFilter.OrderText = "B.BookID ASC";
PageDataSource <Book> books = db.GetPage <Book>(sql.ToString(), pageFilter, parameters.ToArray());
List <Book> bks = db.GetList <Book>(sql.ToString(), parameters.ToArray());
}
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())
{
try
{
db.DataBase.BeginTransaction();
List <Author> authors = new List <Author>();
for (int i = 0; i <= 10; i++)
{
authors.Add(new Author {
AuthorName = "jack" + i.ToString(), Age = 20, IsValid = true
});
}
db.Add(authors);
var aus = db.GetList <Author>(m => true);
db.DataBase.Commit();
}
catch (Exception ex)
{
db.DataBase.Rollback();
}
}
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");
}