Month: September 2011

Written by Fabio

Asynchronous communication between the client and server using ICallbackEventHandler

Implementing client callbacks without postbacks in ASP.NET can be done in several ways: Using UpdatePanel control Exposing Web Services to client-side script Calling a Web service from client-side using jQuery or Microsoft Ajax functions Implementing ICallbackEventHandler many others… But this post doesn’t intend to discuss the differences between them, but to show the last option […]

Written by Fabio

Fix: Disabling a button doesn’t fire click event on server side

Problem: You have buttons that get disabled in the Javascript onClick event handler to prevent the user from clicking multiple times. However, the server side OnClick event handler doesn’t get fired. In this example, Button1 is using validation while Button2 is not (CausesValidation=”false”). Before performing action on the button, I check if the client validation is […]