c#将一个对象转换成json
class AllyRequestIO
{
/*//请求随机数
private String random { get; set; }
//请求参数
private String iparams { get; set; }*/
public String token { get; set; }
public int payType { get; set; }
public Decimal amount { get; set; }
public String use { get; set; }
public String remark { get; set; }
public String orgId { get; set; }
public long merchantId { get; set; }
public String pbucode { get; set; }
public String accno { get; set; }
public String accname { get; set; }
public String bankcode { get; set; }
public String ubankno { get; set; }
public String cusno { get; set; }
public int acctype { get; set; }
}
AllyRequestIO aio = new AllyRequestIO();
aio.token = "e993ffb0-54a7-4446-8b17-937f1454d214";
aio.payType = 1;
aio.amount = (Decimal)111.00;
aio.use = "余额充值";
aio.remark = "用户:超级管理员充值余额";
aio.orgId="DDA607C7-C875-4B3A-AA29-4D435F2A4295";
aio.merchantId = 1;
aio.pbucode = "TEST";
aio.accno = "6225842255849524451";
aio.accname = "李四";
aio.bankcode = "CCB";
aio.ubankno = "衣冠庙支行";
aio.cusno = "3625";
aio.acctype = 2;
我要将aio转换成json,怎么做?