Install-Package Pomelo.EntityFrameworkCore.MySql

"ConnectionStrings": {
    "MariaDbConnectionString": "server=localhost;user id=root;password=root;database=aspnetcore.mariadb"
  }

public void ConfigureServices(IServiceCollection services)
{
    services.AddDbContextPool<ApplicationDbContext>(options => options
        .UseMySql(
            Configuration.GetConnectionString("MariaDbConnectionString"),MariaDbServerVersion.AutoDetect(Configuration.GetConnectionString("MariaDbConnectionString"))
        )
    );
}

var data = new CustomerServiceReport
{
    ReportDate = "1399/09/04",
    ReportTitle = "گزارش سرویس‌های مشتریان"
};

for (int i = 0; i < 5; i++)
{
    var customer = new CustomerRow
    {
        CustomerId = i + 1,
        CustomerName = $"مشتری شماره {i + 1}",
        Phone = "001122"
    };

    for (int j = 0; j < 3; j++)
    {
        var service = new ServiceRow
        {
            ServiceId = j + 1,
            ServiceName = $"سرویس شماره {j + 1}",
            Count = (j + 1) * 10,
            Price = (j + 1) * 10000
        };

        customer.Services.Add(service); //اضافه کردن سرویس به هر مشتری
    }

    data.Customers.Add(customer); // اضافه کردن مشتری به گزارش
}

var report = new StiReport();
report.RegBusinessObject("CustomerServiceReport", data);
report.Dictionary.SynchronizeBusinessObjects();