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Editorial Team
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Editorial Team
Asked: June 18, 20262026-06-18T03:04:57+00:00 2026-06-18T03:04:57+00:00

I have 2 drop down lists, on 1st DDL selected index changed event I

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I have 2 drop down lists, on 1st DDL selected index changed event I am filling 2nd DDL…. Its a regular postback of asp.net..

In this scenario I want to use ICallBack event handler….

So how can i use this ???

Regards,
Rohit Pundlik

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  1. Editorial Team
    Editorial Team
    2026-06-18T03:04:58+00:00Added an answer on June 18, 2026 at 3:04 am

    You can google it :

    1. Client-Callback Implementation (C#) Example
    2. Implementing Client Callbacks Programmatically Without Postbacks in ASP.NET Web Pages
    3. The ICallbackEventHandler
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