if statement - If in if in vb.net -

im making webbrowser , when press enter in textbox want see if there domain in there , if navigate url in textbox

this i've done right now

if e.keycode = keys.enter     if textbox1.text.contains(".com") or textbox1.text.contains(".se") or textbox1.text.contains(".net") or textbox1.text.contains(".org") or textbox1.text.contains(".au") or textbox1.text.contains(".ws") or textbox1.text.contains(".co") or textbox1.text.contains(".biz") or textbox1.text.contains(".tv") or textbox1.text.contains(".info") or textbox1.text.contains(".int") or textbox1.text.contains(".gov") or textbox1.text.contains(".mil") or textbox1.text.contains(".dk") or textbox1.text.contains(".ac") or textbox1.text.contains(".ad") or textbox1.text.contains(".ae") or textbox1.text.contains(".af") or textbox1.text.contains(".ag") or textbox1.text.contains(".ai") or textbox1.text.contains(".au") or textbox1.text.contains(".an") or textbox1.text.contains(".at") or textbox1.text.contains(".eu") or textbox1.text.contains(".ax") or textbox1.text.contains(".ca") or textbox1.text.contains(".de") or textbox1.text.contains(".fi") or textbox1.text.contains(".gb") or textbox1.text.contains(".is") or textbox1.text.contains(".nz") or textbox1.text.contains(".us") or textbox1.text.contains(".uk")         try             webcontrol1.source = new uri(textbox1.text)         catch ex exception          end try     end if end if 

not sure issue you're having, here's 1 way accomplish you're doing:

private sub textbox1_keyup(sender object, e system.windows.forms.keyeventargs) handles textbox1.keyup     if e.keycode = keys.enter         if isurl(me.textbox1.text)             webcontrol1.source = new uri(if(not me.textbox1.text.startswith("http://", stringcomparison.invariantcultureignorecase), "http://", "") & me.textbox1.text)         end if     end if end sub  private function isurl(byval url string) boolean     dim valid boolean = false     dim exts() string = split(".com;.se;.net;.org;.au;.ws;.co;.biz;.tv;.info;.int;.gov;.mil;.dk;.ac;.ad;.ae;.af;.ag;.ai;.au;.an;.at;.eu;.ax;.ca;.de;.fi;.gb;.is;.nz;.us;.uk", ";")     each ext in exts         if url.endswith(ext, stringcomparison.invariantcultureignorecase)             valid = true             exit         end if     next     return valid end function