Listbox2 Check If An Item Is Already Exist In Listbox1

Mar 15, 2012

in form1 i have two listboxs listbox1 listbox2 loadbutton and savebutton this code will write listbox1.selecteditem into a txt file and loadbutton will load info in listbox2 but i want when i click loadbutton it check if that item is already exist in listbox2 , if not so write selected item from listbox1 and if that item is already exist in listbox2 then do not save it (msg"this item is already exist in listbox2")

[Code]...

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[Code]...

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[CODE]:...................

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[Code]...

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UPDATE

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[Code].....

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[Code]...

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[Code].....

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[Code]....

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[Code]...

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[code].....

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[Code]...

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Tried Code

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[Code]...

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