paramaterising a webservice call

[Sarky78]

Hi all,

Hoping someone will be able to help me with this. i am trying to use a webservice to get the conversion rate between currencies. this is the service:

http://www.webservicex.net/WCF/ServiceDetails.aspx?SID=18

now i have manaed to get the service working with hard coded values:

            CurrencyConvert.CurrencyConvertor currencyService = new CurrencyConvert.CurrencyConvertor();
            currencyService.ConversionRate(Currency.CurrencyConvert.Currency.GBP, Currency.CurrencyConvert.Currency.USD);

but i want to be able to paramaterise it. i have tried casting, concatenating and trying to use new on the currency.currencyconvert method but nothing.

Can anyone help me? i want to be able to do something like:

CurrencyConvert.CurrencyConvertor currencyService = new CurrencyConvert.CurrencyConvertor();

string conFrom = "GBP";
string conTo = "USD";

currencyService.ConversionRate(conFrom,conTo);

Anyone got any ideas?

Thanks in advance

Tony

 

[jbenson001]

What is not working? Did you get an error?

 

[Sarky78]

hey,

The error that i get when i try and use conFrom/conTo is:

Argument '1': cannot convert from 'string' to 'Currency.CurrencyConvert.Currency'

So what i need is someway of being able to define this. i thought of using a load of if statements but we are looking to use about 20 currency types so i don't think this will be that efficient.

thanks

Tony

 

[jbenson001]

Not sure why you need to parameterize this, but, you would have to conver the type. I guess you can load the types into an enum of that type, but I'm not sure of anything you would gain by this.

 

[jmeckley]

I'm guessing Currency.CurrencyConvert.Currency is an enum. this that case you need to parse the text (or value) to the enum type.

var currency = (Currency)Enum.Parse(typeof(Currency), "GBP");

you would do something very similar if you passed the numeric value of the enum rather than the text.

Jason Meckley
Programmer
Specialty Bakers, Inc.

faq855-7190

 

[tsuji]

>currencyService.ConversionRate(conFrom,conTo);

[1] You should capture the return value say xrate.
[2] Use the Parse of Enum of type Currency, like this.
[tt]
double xrate=currencyService.ConversionRate(
(CurrencyConvert.Currency)Enum.Parse(typeof(CurrencyConvert.Currency),conFrom),
(CurrencyConvert.Currency)Enum.Parse(typeof(CurrencyConvert.Currency),conTo));
[/tt]