What if you make heavy use of the UpdatePanel control to perform asynchronous postbacks and an exception is encountered while processing the server-side code? The result will be a JavaScript error thrown by the AJAX library.... [More]

Invoking cross-site services from client-side JavaScript generally requires the use of a proxy, however Internet Explorer 8 introduces the XDomainRequest object that allows for cross-site requests directly from JavaScript, a proxy may no longer be required for mashups.. [More]

A common issue when making use of client-side code and Ajax is the validation of controls on the client. For example, the submit button is clicked, however the page isn’t posted to the server in a normal fashion, rather, a custom client-side event handler has been defined so that we can perform Ajax operations, that is, send results to the server via client-side proxy web services. So what’s the problem you may be asking yourself?. [More]