using (var connection = new SqlConnection("YourConnectionString"))

{

    connection.Open();

​

    string sql = "SELECT YourField FROM YourTable WHERE Id = @Id";

    var result = await connection.QueryFirstOrDefaultAsync<string>(sql, new { Id = 1 });

​

    // Convert the retrieved field value to another type

    int convertedValue = Convert.ToInt32(result);

​

    // Further processing with the converted value

    // ...

​

    connection.Close();

}