CODEWITHSUNDEEP
htmlasp-classicvbscript
Primetime
Primetime

Reputation: 579

check if control exists

I have a password field that is on some pages and not on some pages. This is legacy code and it uses one include page for logic on both types of pages. I need to check if that control exists. I can't seem to find a way to check using vbscript.

some pages have 

<label>Enter Password:</label> <input type="password" name="pwd" id="pwd"/><br/>

some do not

Using ASP how do I check if it exists?

if (?????) then

end if

Upvotes: 1

Views: 986

Answers (2)

Kummer Wolfe
Kummer Wolfe

Reputation: 603

Not real sure if you are running on the server or on the client. So I'll take a stab its on the client. This might work for you.

if ( TypeName(document.getElementById("pwd")) ) <> "Nothing" then
    MsgBox("found!")
else 
    MsgBox("not found!")
end if

Update:

Since this is server side, and vbscript is pretty long in the tooth, I dimly remember this working for me:

if isEmpty(Request.Form("pwd")) then
   //-- not there... 
else
   //-- its there ....
end if

Upvotes: 3

Diodeus - James MacFarlane
Diodeus - James MacFarlane

Reputation: 114377

Server-side ASP:

if request("pwd") <> "" then

end if

Upvotes: 0

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