SqlConnection SqlConnection 构造函数 属性 AccessToken ClientConnectionId ConnectionString ConnectionTimeout Credential Database DataSource FireInfoMessageEventOnUserErrors PacketSize ServerVersion State StatisticsEnabled WorkstationId 方法 事件 显式接口实现 ...
<add key="ConnectionString" value="server=.\SQLEXPRESS;database=DBNAME;uid=sa;pwd=sa"/> </appSettings>
<addname="Test.Properties.Settings.TestConnectionString" connectionString="Data Source=.;Initial Catalog=TEST_ERP;Integrated Security=False;uid=sa;password=shiny" providerName="System.Data.SqlClient"/> </connectionStrings> </configuration> 生成EXE,在输出目录下面会产生一个Text.exe.config文件,刚才App.co...
{0}", connection.State); Console.WriteLine("ConnectionString: {0}", connection.ConnectionString); } }staticprivatestringGetConnectionString(){// To avoid storing the connection string in your code,// you can retrieve it from a configuration file.return"Data Source=MSSQL1;Initial Catalog=...
MSSQLSERVER is the name of the SQL Server default instance. Please see:Instance Configuration You use “user instance” in the connection string. As mentioned above, this feature is only supported by SQL Server Express. In your case, we need to work with the SQL Server instance called SQLEX...
MSSQLSERVER is the name of the SQL Server default instance. Please see:Instance Configuration You use “user instance” in the connection string. As mentioned above, this feature is only supported by SQL Server Express. In your case, we need to work with the SQL Server instance called SQLEX...
SqlConnectionString 构造函数 (String, String) SqlConnectionString 构造函数 (String, String, String) SqlConnectionString 构造函数 (String, String, String, String) SqlConnectionString 构造函数 (String, String, String, String, String) SqlConnectionString 方法 SqlConnectionString 属性 TeamSite 类 TeamSiteCo...
问题就出在标红的代码上,cnn.dispose() 释放con对象所占用的资源,释放后这个对象就不可用了,所以出现“ConnectionString 属性尚未初始化”的问题,当页面首次加载是不会出现什么问题,但第二次在页面使用时就会出问题,因为在首次加载后cnn.dispose() 释放con对象所占用的资源。
下一版本的 Microsoft SQL Server 将删除该功能。 请不要在新的开发工作中使用该功能,并尽快修改当前还在使用该功能的应用程序。 The ConnectionString property of an object of ClassType clsDataSource returns a string containing the OLE DB initialization parameters for the source database. ...
{0}", connection.State); Console.WriteLine("ConnectionString: {0}", connection.ConnectionString); } }staticprivatestringGetConnectionString(){// To avoid storing the connection string in your code,// you can retrieve it from a configuration file.return"Data Source=MSSQL1;Initial Catalog=...