如何从 Dapper ExecuteReader() 检索数据并将其转换为 int
How to retrieve data from Dapper ExecuteReader() and convert it into an int
我正在使用 Dapper,我想从具有特定条件的列中获取所有值,然后将其转换为整数,但我无法访问这些值。
| NumAdultos | NumCrianças |
| 1 | 0 | <-----------
| 2 | 1 | <----------- I want to get all these values;
| 1 | 0 | <-----------
代码:
int clienteAlojadoNum = 0;
using (IDbConnection connection = new System.Data.SqlClient.SqlConnection(Helper.ConnectionString("Hotel")))
{
// How do I convert this value?
var adultos = connection.ExecuteReader($"SELECT NumAdultos, NumCrianças FROM dbo.Registos WHERE DataEntrada = @DataEntrada and Estado = 'Alojado' ", new { DataEntrada = hoje });
// I know this is wrong but I don't how to access them or convert them
clienteAlojadoNum = Convert.ToInt32(adultos);
}
public class Data {
public int NumAdultos { get; set; }
public int NumCrianças {get; set; }
}
int clienteAlojadoNum = 0;
using(IDbConnection connection = new SqlConnection(Helper.ConnectionString("Hotel"))) {
var results = connection.Query<Data>($"SELECT NumAdultos, NumCrianças FROM dbo.Registos WHERE DataEntrada = @DataEntrada and Estado = @Estado", new {
DataEntrada = hoje,
Estado = "Alojado"
});
clienteAlojadoNum = results.Select(r => r.NumAdultos + r.NumCrianças).Sum();
}
我正在使用 Dapper,我想从具有特定条件的列中获取所有值,然后将其转换为整数,但我无法访问这些值。
| NumAdultos | NumCrianças |
| 1 | 0 | <-----------
| 2 | 1 | <----------- I want to get all these values;
| 1 | 0 | <-----------
代码:
int clienteAlojadoNum = 0;
using (IDbConnection connection = new System.Data.SqlClient.SqlConnection(Helper.ConnectionString("Hotel")))
{
// How do I convert this value?
var adultos = connection.ExecuteReader($"SELECT NumAdultos, NumCrianças FROM dbo.Registos WHERE DataEntrada = @DataEntrada and Estado = 'Alojado' ", new { DataEntrada = hoje });
// I know this is wrong but I don't how to access them or convert them
clienteAlojadoNum = Convert.ToInt32(adultos);
}
public class Data {
public int NumAdultos { get; set; }
public int NumCrianças {get; set; }
}
int clienteAlojadoNum = 0;
using(IDbConnection connection = new SqlConnection(Helper.ConnectionString("Hotel"))) {
var results = connection.Query<Data>($"SELECT NumAdultos, NumCrianças FROM dbo.Registos WHERE DataEntrada = @DataEntrada and Estado = @Estado", new {
DataEntrada = hoje,
Estado = "Alojado"
});
clienteAlojadoNum = results.Select(r => r.NumAdultos + r.NumCrianças).Sum();
}