c# - Dropdown Remove Selected Item On Post Back -

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i have place order form , have drop down list contains list of items binding from

sharepoint list dynamically. whenever add item (for example item1) place order , click add

another item button,i need remove (item1 ) drop down list avoid duplicate insert in

sharepoint list or maybe need fill drop down without (item1) cause selected it.

please give me solution.

thanks in advance.

kumar.


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