//Пишем историю книги public void AddBooksHistory(int id, _Readership reader) { string insert = "Insert Into BooksHistory(Id, Login, DateOfIssue) Values(@Id, @Login, @DateOfIssue)"; try { using (SqlConnection connection = new SqlConnection(ConnectionStrings.DBQuery)) { using (SqlCommand cmd = new SqlCommand(insert, connection)) { connection.Open(); cmd.Parameters.AddWithValue("@Id", id); cmd.Parameters.AddWithValue("@Login", reader.Login); cmd.Parameters.AddWithValue("@DateOfIssue", DateTime.Now.ToShortDateString()); cmd.ExecuteNonQuery(); } } } catch (Exception ex) { System.IO.StreamWriter writer = new System.IO.StreamWriter(@"C:\Users\Dmitriy\Downloads\WebApplication2\WebApplication2\WebApplication2\App_Data\ErrorLogDataBase.txt", true); writer.WriteLine(string.Format("Date : " + DateTime.Now.ToString() + " Error : " + ex.Message)); writer.Close(); } }
//Вернуть книгу public void BooksReturn(_Readership reader) { string insert = string.Format("Update BooksHistory Set DateOfReturn = '{0}' Where Login = '******'", DateTime.Now.ToShortDateString(), reader.Login); try { using (SqlConnection connection = new SqlConnection(ConnectionStrings.DBQuery)) { using (SqlCommand cmd = new SqlCommand(insert, connection)) { connection.Open(); cmd.ExecuteNonQuery(); } } } catch (Exception ex) { System.IO.StreamWriter writer = new System.IO.StreamWriter(@"C:\Users\Dmitriy\Downloads\WebApplication2\WebApplication2\WebApplication2\App_Data\ErrorLogDataBase.txt", true); writer.WriteLine(string.Format("Date : " + DateTime.Now.ToString() + " Error : " + ex.Message)); writer.Close(); } }