Get<Model>(1); entity.Name = "测试1"; connection.Update(entity); 和 代码语言:javascript 代码运行次数:0 运行 AI代码解释 var models = connection.GetAll<Model>(); foreach(var m in models) { Console.WriteLine(m); m.StringLength
string sql="INSERT INTO Customers (CustomerName) Values (@CustomerName);";using(varconnection=newSqlConnection(FiddleHelper.GetConnectionStringSqlServerW3Schools())){varaffectedRows=connection.ExecuteAsync(sql,new{CustomerName="Mark"}).Result;Console.WriteLine(affectedRows);varcustomer=connection.Query<Cus...
//////获取数据库连接并打开/////////<returns></returns>publicstaticIDbConnection GetDbConnection(stringconnnectionStringName) {stringprovider =ConfigurationManager.ConnectionStrings[connnectionStringName].ProviderName;stringconnectionString =ConfigurationManager.ConnectionStrings[connnectionStringName].ConnectionString;...
stringconnectionString = configuration.GetConnectionString("SybaseConnection"); _dbConnection =newSqlConnection(connectionString);//或者使用相应的Sybase数据库提供程序 } } 查询数据publicIEnumerable<User>GetUsers() { using(varconnection =newSqlConnection(_connectionString)) { connection.Open; stringquery ="...
var conn = new SqlConnection(ConfigurationManager.ConnectionStrings["SqlDiagnosticsDb"].ConnectionString); 使用dapper不需要考虑conn是否连接,在执行dapper时自行判断 open状态,如果没有打开它会自己打开。 2、insert stringquery ="INSERT INTO Book(Name)VALUES(@name)"; ...
usingSystem;usingSystem.Collections.Generic;usingSystem.Data.SqlClient;usingDapper;namespaceDapperMySQLExample{publicclassCustomer{publicintId{get;set;}publicstringName{get;set;}publicstringEmail{get;set;}}publicclassProgram{staticvoidMain(string[]args){stringconnectionString="Server=your_server_address;Data...
.MySqlClient.MySqlConnection(connectionString)){dbConnection.Open();varsql="SELECT * FROM Users";varusers=dbConnection.Query<User>(sql).ToList();foreach(varuserinusers){Console.WriteLine($"ID:{user.Id}, Name:{user.Name}");}}}publicclassUser{publicintId{get;set;}publicstringName{get;set...
static string sqlConnString = "Server=127.0.0.1; UserId=SYSDBA; PWD=***"; public static IDbConnection GetConn() { return new DmConnection(sqlConnString); } } public static void Main() { Dapper2 dapper = new Dapper2(); PersonModel model = new PersonModel(); model...
public string CustomerName { get; set; } } public class Order { public int OrderId { get; set; } public int CustomerId { get; set; } public decimal TotalAmount { get; set; } } class Program { static void Main() { string connectionString = "YourConnectionStringHere"; ...
protected string ConnectionString { get; set; } public T Execute<T>(Func<SqlConnection, T> func) { using (SqlConnection connection = new SqlConnection(ConnectionString)) { return func(connection); } } } 有了父类通用的Execute方法,接下来子类中就可以直接用它啦,改造如下: ...