[Solved] How to implement currency conversion

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Please change you code with below code

    [WebMethod]
    public decimal ConvertGOOG(decimal amount, string fromCurrency, string toCurrency)
    {
        WebClient web = new WebClient();
        string apiURL = String.Format("http://finance.google.com/finance/converter?a={0}&from={1}&to={2}", amount, fromCurrency.ToUpper(), toCurrency.ToUpper());
        string response = web.DownloadString(apiURL);
        var split = response.Split((new string[] { "<span class=bld>" }), StringSplitOptions.None);
        var value = split[1].Split(' ')[0];
        decimal rate = decimal.Parse(value, CultureInfo.InvariantCulture);
        return rate;
    }

This will return the conversion currency

Google has stopped making use of http://www.google.com/ig/calculator?hl=en&q={2}{0}%3D%3F{1}

solved How to implement currency conversion