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How to maintain/preserve values in the listbox ?

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Hi,
I am using .Net framework2.0. I have an aspx with vb.net as codebehind

step1:When page loads I am loading the dropdown from the db.
step2: After page load, I can enter any value in the text box and click on add button will load the value in the list box.
step3: If I change the value in the dropdown (I have written some code to load the value into another listbox based on the dropdown selected) the listbox value which I did in step2 is cleared off due to postback.

Now how do I maintain/preserve the values in the listbox that I did step2 ?

Thanks,
Renil.
Mar 24 '08 #1
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