javascript - How to execute method on listbox item select asp.net -

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need select item listbox , on select method executed load_data() , data loaded , displayed instead after page gets refreshed , again value displayed set default . autopostback property true . should ?

 protected void listbox1_selectedindexchanged1(object sender, eventargs e)     {         load_data(listbox1.selecteditem.text);     }

if databinding listbox in page_load method, make sure databind when it's not postback this...

protected void page_load(object sender, eventargs e) {     if (!page.ispostback)     {         // initial databind listbox here (where default data loaded)     } }

you can still keep selectedindexchanged event

protected void listbox1_selectedindexchanged1(object sender, eventargs e) {     load_data(listbox1.selecteditem.text); }

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