asp.net question(URGENT) URGENT Why after click "set value" button and "show result" button RESULT is no value? Thank you very much! <%@ Page Language="vb" %> text :
RESULT :

The page class itself is stateless between separate requests, which means the local text variable is cleared between each call - and this is by design. Want get into thatm but if you instead String.IsNullOrEmpty(label_text.Text) I think it will work for you. All "state", i.e values you want to keep between calls, must be but in the page.s viewstate (by putting it into a control for example)