للبحث عن نص في Listbox-Combobox فيجوال بيسك

كود :
'



'txtItem.Text would be a textbox control whose text will be searched. And of





'course, lstItems is a Listbox control or you can make it a Combobox control. The code below 





'shows searching for a partial/exact string at either the beginning of the control or at a 





'specified Index value.





'





'





'Search a Listbox Control for a exact string





lstItems.SelectedIndex = lstItems.FindStringExact(txtItem.Text)





'





'Search a Listbox Control for a partial string





lstItems.SelectedIndex = lstItems.FindString(txtItem.Text)





'





'Start searching a Listbox Control for a partial string at Index value 4.





lstItems.SelectedIndex = lstItems.FindString(txtItem.Text, 4)





'





'Start searching a Listbox Control for a exact string at Index value 2.





lstItems.SelectedIndex = lstItems.FindStringExact(txtItem.Text, 2)