一般的远程访问的写成这样:
Data Source=IP;Initial Catalog=数据库名;UserID=用户名;Password=密码
本地访问的写成这样:
Data Source=(local);Initial Catalog=数据库名;UserID=用户名;Password=密码
如果是本地的,通过windows组件验证的(也就是没有用户名,密码的)写成这样:
Data Source=(local);Initial Catalog=数据库名;Integrated Security=True
如果不是默认的实例,假如实例名是SQLEXPRESS,写成这样:
Data Source=(local)/SQLEXPRESS;Initial Catalog=数据库名;Integrated Security=True
ExecuteReader 简单高效的,单向前的数据查询。返回一个SqlDataReader对象 通常用于读取数据 ExecuteNonQuery 返回一个int类型的值,返回数据库中所影响的行数。 用于对数据库的各种操作ExecuteScalar返回读出结果的第一行第一列
WorkflowIdled 事件
.NET Framework 类库
WorkflowRuntimeWorkflowIdled 事件
更新:2007 年 11 月
在工作流实例进入空闲状态后发生
static void Main(){ string connectionString = "Initial Catalog=SqlPersistenceService;Data Source=localhost;Integrated Security=SSPI;"; using (WorkflowRuntime workflowRuntime = new WorkflowRuntime()) { ExternalDataExchangeService dataService = new ExternalDataExchangeService(); workflowRuntime.AddService(dataService); dataService.AddService(expenseService); workflowRuntime.AddService(new SqlWorkflowPersistenceService(connectionString)); workflowRuntime.StartRuntime(); workflowRuntime.WorkflowCompleted += OnWorkflowCompleted; workflowRuntime.WorkflowTerminated += OnWorkflowTerminated; workflowRuntime.WorkflowIdled += OnWorkflowIdled; workflowRuntime.WorkflowAborted += OnWorkflowAborted; Type type = typeof(SampleWorkflow1); WorkflowInstance workflowInstance = workflowRuntime.CreateWorkflow(type); workflowInstance.Start(); waitHandle.WaitOne(); workflowRuntime.StopRuntime(); }}
,放弃等于又一次可以选择的机会。