listbox - how to add a specific value from a list box in vb.net? -


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how can retrieve total price listbox , total in textbox?? code add data listbox

private sub cbitem_selectedindexchanged(byval sender object, byval e system.eventargs) handles cbitem.selectedindexchanged     if cbitem.selectedindex < 0 return     dim price = convert.todecimal(items(cbitem.selectedindex, 1))     txtitemprice.text = price end sub  private sub btnadd_click(byval sender system.object, byval e system.eventargs) handles btnadd.click     dim price = convert.todecimal(txtitemprice.text)     dim quantity = convert.toint32(txtquantity.text)     dim totalprice integer = price * quantity     lstorder.items.add(cbitem.selecteditem & vbtab & vbtab & vbtab & price & vbtab & vbtab & vbtab & quantity & vbtab & vbtab & totalprice) end sub

suppose have 2 controls : listbox1 , textbox1.

' initialise textbox 0     textbox1.text = 0  ' insert values in listbox  listbox1.items.add(1)  listbox1.items.add(2)  listbox1.items.add(3)  listbox1.items.add(4)   ' each item in listbox  integer = 0 listbox1.items.count - 1       textbox1.text = textbox1.text + listbox1.items(i)  next

for work, have price of current item , multiply it's quantity. or can sum each item of totalprice column.


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