SqlSugar Database Connection Guide

One common way to connect to a database using SqlSugar is by creating a SqlSugarClient object, specifying the connection string, and then using methods of the object to interact with the database. Here is an example code:

using SqlSugar;

public class DatabaseHelper
{
    private SqlSugarClient Db;

    public DatabaseHelper()
    {
        string connectionString = "Server=127.0.0.1;Database=mydatabase;Uid=root;Pwd=mypassword;";
        Db = new SqlSugarClient(new ConnectionConfig
        {
            ConnectionString = connectionString,
            DbType = DbType.MySql,
            IsAutoCloseConnection = true,
            InitKeyType = InitKeyType.Attribute
        });
    }

    public List<User> GetUsers()
    {
        List<User> users = Db.Queryable<User>().ToList();
        return users;
    }

    public void AddUser(User user)
    {
        Db.Insertable(user).ExecuteCommand();
    }
}

public class User
{
    [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
    public int Id { get; set; }
    public string Name { get; set; }
    public int Age { get; set; }
}

In the previous example, we created a DatabaseHelper class which includes a SqlSugarClient object for connecting to the database. We also defined a User class to represent the user table in the database. By calling methods of the DatabaseHelper class, we can query user data or insert new user data into the database.