如何在C＃Web Service .net 1.1

Question

我正在尝试使用.net 1.1创建一个接受对象作为参数的Web服务。当我创建类对象并使用创建的对象参数调用该Web方法时，我得到“方法没有重载'数量'需要'3'参数”错误。

//这是我的网络方法

[WebMethod]
public void Deposit(Amount amount)
{
    string tranAmount;
    string tranCurrency;
    string exchangeAmt;

    try
    {
        tranAmount = amount.amount;
        tranCurrency = amount.currency;
        exchangeAmt = amount.amt.amt;
    }
    catch(Exception ex)
    {
        Utility.LogMsg(ex.Message);
    }
}

[Serializable]
public class Amount
{
    private string _amount;
    private string _currency;
    private AmountTest _amtTest;

    public Amount()
    {
    }

    public Amount(string strAmount,string strCurrency, string strAmt)
    {
        amount = strAmount;
        currency = strCurrency;
        amt = new AmountTest(strAmt);
    }

    public string amount
    {           
        get 
        {
            return _amount;
        }
        set 
        {
            _amount = value;
        }
    }

    public string currency
    {           
        get 
        {
            return _currency;
        }
        set 
        {
            _currency = value;
        }
    }

    public AmountTest amt
    {           
        get 
        {
            return _amtTest;
        }
        set 
        {
            _amtTest = value;
        }
    }

}

[Serializable]
public class AmountTest
{
    private string _amt;
    public string amt
    {

        get 
        {
            return _amt;
        }
        set 
        {
            _amt = value;
        }
    }

    public AmountTest()
    {
    }

    public AmountTest(string strAmt)
    {
        amt = strAmt;
    }
}

//这是我的客户电话

webservice service = new webservice();
Amount amount = new Amount("10","USD","101"); // Error happen here
service.Deposit(amount);

请说明如何纠正它们。提前谢谢。