currency convertor some times stop working! solve this problem

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.NET3.5

The remote server returned an error: (503) Server Unavailable.

Line 40: Dim url As String = String.Format("http://www.google.com/ig/calculator?hl=en&q={2}{0}%3D%3F{1}", fromCurrency.ToUpper(), toCurrency.ToUpper(), amount)
Line 41: Dim response As String = web.DownloadString(url)

guide me how can I solve this problem, I have a currency convertor. www.abbasiandcompany.com/currencyconvertor.aspx

Posted 7-May-13 2:37am

hammadali

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Johnny J. · Answer 1 · 2013-05-07T02:43:00

Solution 1

Make sure that you have an active internet connection at all times!

Put a try/catch around "web.DownloadString(url)" and show a message like "Service not available" in the catch part.

When using a 3rd party service like Google you cannot solve the problem in any other way when it's not available because of missing internet connection

Posted 7-May-13 2:43am

Johnny J.

Updated 7-May-13 2:45am

v2

Comments

hammadali 7-May-13 8:50am

my internet is alwys working fine as you can see this error on www.abbasiandcompany.com, guide me what should I go if this error appears.

Johnny J. 7-May-13 8:57am

In that case it must be due to overload on Googles part. Are you sending repeating requests quickly after one another?

Johnny J. 7-May-13 8:57am

You really cannot do anything if Google decides to throw an error - it's outside of your power. Sorry to have to say that!

hammadali 7-May-13 13:52pm

then what should I do now? how to create live currency convertor

hammadali 7-May-13 14:10pm

my internet connection is always on rest of website is working fine

CPallini · Answer 2 · 2013-05-07T02:44:00

Solution 2

That is a problem you probably cannot solve: an explanation here[^].

Posted 7-May-13 2:44am

CPallini

Comments

hammadali 7-May-13 8:50am

what is anotherway to show ? my internet is alwys working fine as you can see this error on www.abbasiandcompany.com, guide me what should I go if this error appears.