public static async Task <string> DownloadStringAsync(Uri uri, int timeOut = 60000, WebProxy proxy = null)
{
string output = null;
bool cancelledOrError = false;
using (var client = new BetterWebClient())
{
if (proxy != null)
{
client.Proxy = proxy;
}
client.DownloadStringCompleted += (sender, e) =>
{
if (e.Error != null || e.Cancelled)
{
cancelledOrError = true;
}
else
{
output = e.Result;
}
};
client.DownloadStringAsync(uri);
var n = DateTime.Now;
while (output == null && !cancelledOrError && DateTime.Now.Subtract(n).TotalMilliseconds < timeOut)
{
await Task.Delay(100); // wait for respsonse
}
}
return(output);
}
public static async Task GetCurrencyRate()
{
try
{
using (var wClient = new BetterWebClient {
Timeout = 30000
})
{
string sourcecode =
await wClient.DownloadStringAwareOfEncoding(
new Uri("http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml"));;
Match gpdregex = Regex.Match(sourcecode, "<Cube currency='GBP' rate='(.*)'/>");
if (gpdregex.Success)
{
_gbpRate = gpdregex.Groups[1].Value;
}
}
_lastCheck = DateTime.Now;
}
catch (Exception)
{
// ignored
}
}