publicintCommandTimeout {get;set; } 属性值 Int32 一个整数值,该值将超时期限增加 (秒) ,否则将在默认超时期间超时的查询。 注解 此属性获取或设置命令超时 (秒) 用于执行生成的命令 (IDbCommands) 。 有关详细信息,请参阅CommandTimeout。 如果未设置此属性,则 的默认值CommandTimeout用于执行查询命令。
问如何在DataContext.CommandTimeout应用程序范围内设置ENNode.js是一个开源JavaScript运行时环境，用于轻松...
1staticvoidMain(string[] args)2{3stringconnectionString =@"server=C23471744F6D4BC\SQLEXPRESS;database=OA_DB;Integrated Security=true";4OA_DBDataContext context =newOA_DBDataContext(newSqlConnection(connectionString));5Console.WriteLine("数据库是否存在:"+ context.DatabaseExists());6Console.WriteLin...
下列範例說明如何重複使用 ADO.NET 命令和 DataContext 之間的相同連線。C# 複製 string connString = @"Data Source=.\SQLEXPRESS;AttachDbFilename=c:\northwind.mdf; Integrated Security=True; Connect Timeout=30; User Instance=True"; SqlConnection nwindConn = ...
一般而言,DataContext實例是針對一個「工作單位」設計,不過您的應用程式會定義該字詞。DataContext是輕量型的,而且建立成本不高。 典型的 LINQ to SQL 應用程式會在DataContext方法範圍建立實例,或作為短期類別的成員,代表相關資料庫作業的邏輯集。 建構函式
partial class MyDataContext { partial void OnCreated() { CommandTimeout = 5 * 60; } public void BulkInsertAll<T>(IEnumerable<T> entities) { entities = entities.ToArray(); string cs = Connection.ConnectionString; var conn = new SqlConnection(cs); conn.Open(); Type t = typeof(T); ...
1. 构造函数: 属性: 方法: 备注 TheDataContextis the source of all entities mapped over a database connection.It tracks changes that you made to all retrieved entities and maintains an "identity cache" that guarantees that entities retrieved more than one time are represented by using the same ...
1. 构造函数: 属性: 方法: 备注 TheDataContextis the source of all entities mapped over a database connection.It tracks changes that you made to all retrieved entities and maintains an "identity cache" that guarantees that entities retrieved more than one time are represented by using the same ...
private int CommandTimeoutImpl { get; set; } protected internal virtual void ClearConnectionImpl() { } protected internal virtual void CreateDatabaseImpl() { } protected internal virtual void DeleteDatabaseImpl() { } protected internal virtual bool DatabaseExistsImpl() { return false; } pr...
ICommand CanExecute() not working ICommand.CanExecute in MVVM Image border Image doesn't change when ImageSource changed Image in button not showing up when execution Image is not showing in runtime. Image Quality WPF Image Refresh problem Image shows during design time but not during runtime ...