JQuery : Which Event Fires In Combobox Before The Change Event

Feb 14, 2011

I want to restrict the user if they select the language which is already selected by displaying alert msg using JQuery.

Is there any event which fires before the change event.

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I've tried to wrap up my problem with a complete example below - the original problem is part of a jQuery plug-in that I'm writing to extend the behaviour of an ASP.NET ajax application I already have.

The aspx page below has one drop down list which is marked for auto post back. I've also bound a change event using jquery (which ultimately I will swap for a .live() event to maintain the binding after the update panel refresh.) The problem is, when the jQuery event is bound I see two ajax begin requests and page_loads fire but only one ddlTest_OnselectedIndexChanged event. One of the page loads is malformed too - the content-length states it's about 300 bytes long whilst the totalBytes is 0 and form data empty. This does not happen if I bind to the click event of a button.

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I've got the an bit of ajax and the succeed runs twice. I've got a global var that I used to keep track.

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