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Editorial Team
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Asked: 2026-06-07T15:28:08+00:00

Ok, I’m actually using a jQuery plugin, to be specific, it’s the DualListBox. I’m

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Ok, I’m actually using a jQuery plugin, to be specific, it’s the DualListBox.

I’m trying to loop on the options added on the second box to get their values, but the codebehind cannot detect it. How will I solve this? Does anybody encountered same problem from the past?

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  1. Editorial Team

    Yes, this is because server side does not know what is populated on client side (typically that’s not part of view state).

    The workaround for this is

    1. EITHER use hidden field which you can populate on change of drop down (client side) and retrieve it on server
    2. OR you can obtain value Request.Form[“CONTROL_NAME_HERE”] on post back

    Hope this helps.

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