“connectionstring property has not been initialized”错误信息的含义 该错误信息表明在尝试访问或使用数据库连接时,程序未能找到或未能正确初始化数据库连接字符串(ConnectionString)。数据库连接字符串是连接数据库所必需的一组配置信息,包括服务器地址、数据库名、用户认证信息等。 可能导致该错误的常见原因 配置文件...
{“ConnectionString属性尚未初始化。”} 其实，就是配置文件有问题，连接字符串写错了， 连接不到sql...
ExecuteScalar: Connection property has not been initialized. Executing a Stored Procedure on Multiple Tables (SQL Server 2005) Export data from SQL server table to a text file using OpenRowSet Export, import of data between SQL SERVER and MS Excel, MS Access through code Export: SQL to Access...
使用Linq to Entities,初始化发生这个错误: The ConnectionString property has not been initialized [InvalidOperationException: The ConnectionString property has not been initialized.] System.Data.SqlClient.SqlConnection.PermissionDemand() +4878787 System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(...
人离开没有希望根本。他只不知道什么做与$10在他的口袋。 [translate] aThe ConnectionString property has not been initialized ConnectionString物产未初始化 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语翻译 荷兰语翻译 瑞典语翻译 希腊语...
using(Connection=newSqlConnection(connectionString)){connection.Open();using(SqlDataAdapter adapter=new...
The ConnectionString property has not been initialized. 原因: 情况1 DbContext中没有指定连接字符串 解决: 情况2 appsettings.json 配置文件的属性没有设置为始终复制
System.InvalidOperationException: The ConnectionString property has not been initialized. at System.Data.SqlClient.SqlConnection.PermissionDemand() at System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection) at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal...
在调用connection的Open()方法之前，您是否尝试过创建命令对象。
the connectionstring property has not been initialized 翻译结果4复制译文编辑译文朗读译文返回顶部 The connectionstring property has not been initialized 翻译结果5复制译文编辑译文朗读译文返回顶部 the connectionstring property has not been initialized 相关内容 aCE system 铈系统 [translate] aHow will a man...