The Server Method "MyMethod" failed

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webservice

I am implementing Smart Search functionality on a text box in my mini project: When user type in a text box, the related contents are displayed in a div (using .innerhtml) on the same page.

To do so I have created a ASP.Net WebService. I am calling a WebService method "MyMethod" from javascript for each "keyup" in text box. It works fine.... but when user press so many keys then the service takes few time to respond, because n number of calls to the service method are there.

Meanwhile, if user click an anchor to navigate to the other page, an error occured: The Server Method "MyMethod" failed.

How do I resolve this problem?

any reply would be highly appreciated....