If Then statement

[shank]

I'm coming from the ASP worl and have no clue to javascript. In the
following code, I'm trying to set the value for variable strPage, then use
that in the redirect statement. The page does nothing. No redirect at all.
What should the synatx be?
thanks!

<SCRIPT LANGUAGE="JavaS cript">
if Session("SoftHa rd") = "Hard"
{
strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");
}
if Session("SoftHa rd") = "Soft"
{
strPage = "softpage.asp?O rderNo=" & Session("OrderN o");
}
setTimeout("top .location.href = strPage",4000);
</SCRIPT>

[artemis.alpeia]

Re: If Then statement

Il Mon, 21 Jul 2003 21:35:08 GMT, "shank" <shank@tampabay .rr.com> ha
scritto nel messaggio
<g0ZSa.134377$i c1.2981995@twis ter.tampabay.rr .com>:
[color=blue]
> I'm coming from the ASP worl and have no clue to javascript. In the
> following code, I'm trying to set the value for variable strPage, then use
> that in the redirect statement. The page does nothing. No redirect at all.
> What should the synatx be?
> thanks!
>
> <SCRIPT LANGUAGE="JavaS cript">
> if Session("SoftHa rd") = "Hard"
> {
> strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");
> }
> if Session("SoftHa rd") = "Soft"
> {
> strPage = "softpage.asp?O rderNo=" & Session("OrderN o");
> }
> setTimeout("top .location.href = strPage",4000);
> </SCRIPT>[/color]

I guess Session is a function of yours :/

the if statement requires parenthesis to include the boolean
condition.

furthermore, to verify an equality you must use a double equal (==).

if (Session("SoftH ard") == "Hard")
{
// blah blah
}
else if (Session("SoftH ard") == "Soft")
{
// blah blah
}


--
artemis.alpeia

[Lasse Reichstein Nielsen]

Re: If Then statement

"shank" <shank@tampabay .rr.com> writes:
[color=blue]
> I'm coming from the ASP worl and have no clue to javascript.[/color]

Javascript syntax is derived from C syntax, just like C++, Java, C#,
and a lot of other languages. The short version is:

- case sensitive!
- conditional and loop statements are:
if ( <expr> ) <stmt> [ else <stmt> ]
while ( <expr> ) <stmt>
do <stmt> while ( <expr> )
for (<expr> ; <expr> ; <expr>) <stmt>
where parentheses are needed (but [ ] just means "optional")
- statements are ended with semicolon, or grouped with "{" and "}"
- comparison is "==", while "=" is assignment.
- local variables are declared with "var" in front.

I don't know of any tutorials on Javascript that I can recommend, but
I am sure you can find a lot by entering "javascript tutorial" into
Google. Just be careful, they are not all good.
[color=blue]
> In the following code, I'm trying to set the value for variable
> strPage, then use that in the redirect statement. The page does
> nothing. No redirect at all. What should the synatx be? thanks![/color]

If you used a browser capable of giving useful error messages (that
is, anythin but IE), then you would probably be told where the syntax
errors are. Even IE's error messages are better than nothing, and will
at least tell you what line the error is on.
[color=blue]
> <SCRIPT LANGUAGE="JavaS cript">[/color]

should be
<script type="text/javascript">
The language attribute is deprecated and the type attribute is mandatory
in HTML 4.
[color=blue]
> if Session("SoftHa rd") = "Hard"[/color]

Should be
if (Session("SoftH ard") == "Hard")
Comparison is "==", where "=" is assignment.
[color=blue]
> {
> strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");[/color]

should be
strPage = "hardpage.asp?O rderNo=" + Session("OrderN o");
The string concatenation operator is "+".
[color=blue]
> }
> if Session("SoftHa rd") = "Soft"[/color]

could be changed into just
else
if Session("SoftHa rd") only has two results.
[color=blue]
> {
> strPage = "softpage.asp?O rderNo=" & Session("OrderN o");[/color]

String concatenation again.


/L
--
Lasse Reichstein Nielsen - lrn@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

[shank]

Re: If Then statement

Thanks, but still not redirecting. Using your example I have the following.
I'm assuming in lieu of // blah blah, my statements were correct. I'm
guessing that my problem is implementing my Session variables
(Session("Order No")"into the mix. Any thoughts?
thanks!

<SCRIPT LANGUAGE="JavaS cript">
if (Session("SoftH ard") == "Hard")
{
strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");
}
else if (Session("SoftH ard") == "Soft")
{
strPage = "softpage.asp?O rderNo=" & Session("OrderN o");
}
setTimeout("top .location.href = strPage",1000);
</SCRIPT>

"artemis.alpeia " <it.inwind@alpe ia.artemis> wrote in message
news:5lnohvc5n2 p4kntf62re60ron prg6f92hv@4ax.c om...[color=blue]
> Il Mon, 21 Jul 2003 21:35:08 GMT, "shank" <shank@tampabay .rr.com> ha
> scritto nel messaggio
> <g0ZSa.134377$i c1.2981995@twis ter.tampabay.rr .com>:
>[color=green]
> > I'm coming from the ASP worl and have no clue to javascript. In the
> > following code, I'm trying to set the value for variable strPage, then[/color][/color]
use[color=blue][color=green]
> > that in the redirect statement. The page does nothing. No redirect at[/color][/color]
all.[color=blue][color=green]
> > What should the synatx be?
> > thanks!
> >
> > <SCRIPT LANGUAGE="JavaS cript">
> > if Session("SoftHa rd") = "Hard"
> > {
> > strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");
> > }
> > if Session("SoftHa rd") = "Soft"
> > {
> > strPage = "softpage.asp?O rderNo=" & Session("OrderN o");
> > }
> > setTimeout("top .location.href = strPage",4000);
> > </SCRIPT>[/color]
>
> I guess Session is a function of yours :/
>
> the if statement requires parenthesis to include the boolean
> condition.
>
> furthermore, to verify an equality you must use a double equal (==).
>
> if (Session("SoftH ard") == "Hard")
> {
> // blah blah
> }
> else if (Session("SoftH ard") == "Soft")
> {
> // blah blah
> }
>
>
> --
> artemis.alpeia
>[/color]

[shank]

Re: If Then statement

Still not getting it right. Am I incorporating my Session("OrderN o")
variable correctly?
thanks!

<SCRIPT LANGUAGE="JavaS cript">
if (Session("SoftH ard") == "Hard")
{
var strPage = "hardpage.asp?O rderNo=" var Session("OrderN o");
}
else if (Session("SoftH ard") == "Soft")
{
var strPage = "softpage.asp?O rderNo=" var Session("OrderN o");
}
setTimeout("top .location.href = var strPage",1000);
</SCRIPT>

"Lasse Reichstein Nielsen" <lrn@hotpop.com > wrote in message
news:3cgzy0zn.f sf@hotpop.com.. .[color=blue]
> "shank" <shank@tampabay .rr.com> writes:
>[color=green]
> > I'm coming from the ASP worl and have no clue to javascript.[/color]
>
> Javascript syntax is derived from C syntax, just like C++, Java, C#,
> and a lot of other languages. The short version is:
>
> - case sensitive!
> - conditional and loop statements are:
> if ( <expr> ) <stmt> [ else <stmt> ]
> while ( <expr> ) <stmt>
> do <stmt> while ( <expr> )
> for (<expr> ; <expr> ; <expr>) <stmt>
> where parentheses are needed (but [ ] just means "optional")
> - statements are ended with semicolon, or grouped with "{" and "}"
> - comparison is "==", while "=" is assignment.
> - local variables are declared with "var" in front.
>
> I don't know of any tutorials on Javascript that I can recommend, but
> I am sure you can find a lot by entering "javascript tutorial" into
> Google. Just be careful, they are not all good.
>[color=green]
> > In the following code, I'm trying to set the value for variable
> > strPage, then use that in the redirect statement. The page does
> > nothing. No redirect at all. What should the synatx be? thanks![/color]
>
> If you used a browser capable of giving useful error messages (that
> is, anythin but IE), then you would probably be told where the syntax
> errors are. Even IE's error messages are better than nothing, and will
> at least tell you what line the error is on.
>[color=green]
> > <SCRIPT LANGUAGE="JavaS cript">[/color]
>
> should be
> <script type="text/javascript">
> The language attribute is deprecated and the type attribute is mandatory
> in HTML 4.
>[color=green]
> > if Session("SoftHa rd") = "Hard"[/color]
>
> Should be
> if (Session("SoftH ard") == "Hard")
> Comparison is "==", where "=" is assignment.
>[color=green]
> > {
> > strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");[/color]
>
> should be
> strPage = "hardpage.asp?O rderNo=" + Session("OrderN o");
> The string concatenation operator is "+".
>[color=green]
> > }
> > if Session("SoftHa rd") = "Soft"[/color]
>
> could be changed into just
> else
> if Session("SoftHa rd") only has two results.
>[color=green]
> > {
> > strPage = "softpage.asp?O rderNo=" & Session("OrderN o");[/color]
>
> String concatenation again.
>
>
> /L
> --
> Lasse Reichstein Nielsen - lrn@hotpop.com
> Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
> 'Faith without judgement merely degrades the spirit divine.'
>[/color]

[Douglas Crockford]

Re: If Then statement

> I'm coming from the ASP worl and have no clue to javascript. In the[color=blue]
> following code, I'm trying to set the value for variable strPage, then use
> that in the redirect statement. The page does nothing. No redirect at all.
> What should the synatx be?[/color]

There's nothing like knowing what you are doing. I recommend that you get a good
book and try to develop some competence in the subject. Flanagan's book is the
best available. Check the FAQ.

http://www.crockford.com/javascript/javascript.html

[Richard Cornford]

Re: If Then statement

"shank" <shank@tampabay .rr.com> wrote in message
news:DO%Sa.1356 03$ic1.3004722@ twister.tampaba y.rr.com...[color=blue]
> Still not getting it right. Am I incorporating my
>Session("Order No") variable correctly?[/color]
<snip>[color=blue]
> var strPage = "softpage.asp?O rderNo=" var Session("OrderN o");[/color]
<snip>

Probably not! You have not shown us your - Session - function but if it
returns a string (or a number) then you would want to concatenate it to
the URL string. The JavaScript concatenation operator is + (the plus
symbol, and it also performs numeric addition, but if either operand is
a string it performs concatenation (with automatic type conversion to
string if one operand is not a string)):-

var strPage = "softpage.asp?O rderNo=" + Session("OrderN o");

The - var - keyword is a syntax error in the context in which you used
it just before the Session function call. var - declares a variable and
should be followed by a valid identifier (and possibly an assignment
operation) or a comma separated list of identifiers with optional
assignments:-

var a;
var b = 'anyString';
var c, d, e = 24, f, g = new Object();

However, I suspect that what appears to be a function called - Session -
is actually the cause of your problems and represents a misconception
caused by your server-side experience with built in Session objects in
ASP. I may be wrong, in any event it would be useful if you would show
the function definition (if one exists) or explain what role Session is
expected to play in this code.

Richard.

[Trevor Hills]

Re: If Then statement

shank wrote:[color=blue]
> I'm coming from the ASP worl and have no clue to javascript.[/color]

Mate, you've got some reading to do:

http://devedge.netscape.com/central/javascript/

http://www.mozilla.org/js/scripting/

http://gemal.dk/mozilla/mozdev.html

[Tim Slattery]

Re: If Then statement

"shank" <shank@tampabay .rr.com> wrote:
[color=blue]
>I'm coming from the ASP worl and have no clue to javascript. In the
>following code, I'm trying to set the value for variable strPage, then use
>that in the redirect statement. The page does nothing. No redirect at all.
>What should the synatx be?
>thanks!
>
><SCRIPT LANGUAGE="JavaS cript">
>if Session("SoftHa rd") = "Hard"[/color]

Use a double equal sign for comparison: if Session("SoftHa rd") ==
"Hard". Single equal sign is only for assignment.[color=blue]
>{
>strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");[/color]

If you're trying to concatenate these things, use "+".[color=blue]
>}
>if Session("SoftHa rd") = "Soft"[/color]

Again, double equal sign for comparison
[color=blue]
>{
>strPage = "softpage.asp?O rderNo=" & Session("OrderN o");[/color]

And a + sign for concatenation[color=blue]
>}
> setTimeout("top .location.href = strPage",4000);
></SCRIPT>
>[/color]


--
Tim Slattery
Slattery_T@bls. gov

[Steven Dilley]

Re: If Then statement

"shank" <shank@tampabay .rr.com> wrote in message
news:g0ZSa.1343 77$ic1.2981995@ twister.tampaba y.rr.com...[color=blue]
> I'm coming from the ASP worl and have no clue to javascript. In the
> following code, I'm trying to set the value for variable strPage, then use
> that in the redirect statement. The page does nothing. No redirect at all.
> What should the synatx be?
> thanks!
>
> <SCRIPT LANGUAGE="JavaS cript">
> if Session("SoftHa rd") = "Hard"
> {
> strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");
> }
> if Session("SoftHa rd") = "Soft"
> {
> strPage = "softpage.asp?O rderNo=" & Session("OrderN o");
> }
> setTimeout("top .location.href = strPage",4000);
> </SCRIPT>
>[/color]
Is this a server script or a client script? Sessions are a server concept,
but redirection only works on the client side.

Have you considered learning vbscript first?

[shank]

Re: If Then statement

I am in fact trying to incorporate a server side variable. There must be
some way to bring that variable locally so it can be used... isn't there?
thanks!

"Steven Dilley" <steven.dilley@ compuware.com> wrote in message
news:3f1d55c1@1 0.10.0.241...[color=blue]
> "shank" <shank@tampabay .rr.com> wrote in message
> news:g0ZSa.1343 77$ic1.2981995@ twister.tampaba y.rr.com...[color=green]
> > I'm coming from the ASP worl and have no clue to javascript. In the
> > following code, I'm trying to set the value for variable strPage, then[/color][/color]
use[color=blue][color=green]
> > that in the redirect statement. The page does nothing. No redirect at[/color][/color]
all.[color=blue][color=green]
> > What should the synatx be?
> > thanks!
> >
> > <SCRIPT LANGUAGE="JavaS cript">
> > if Session("SoftHa rd") = "Hard"
> > {
> > strPage = "hardpage.asp?O rderNo=" & Session("OrderN o");
> > }
> > if Session("SoftHa rd") = "Soft"
> > {
> > strPage = "softpage.asp?O rderNo=" & Session("OrderN o");
> > }
> > setTimeout("top .location.href = strPage",4000);
> > </SCRIPT>
> >[/color]
> Is this a server script or a client script? Sessions are a server[/color]
concept,[color=blue]
> but redirection only works on the client side.
>
> Have you considered learning vbscript first?
>
>[/color]

[shank]

Re: If Then statement

I'm trying to assemble all the suggestions and I'm still not getting a
redirect to happen.
To simplify matters, I'm using 2 variables.
Any help is appreciated!!!
thanks!

<SCRIPT LANGUAGE="JavaS cript">
var SoftHard == <%=Session("Sof tHard")%>
var OrderNo == <%=Session("Ord erNo")%>
if SoftHard = "Hard")
{
strPage = "hardpage.asp?O rderNo=" + OrderNo;
}
else if SoftHard = "Soft")
{
strPage = "softpage.asp?O rderNo=" + OrderNo;
}
setTimeout("top .location.href = " + strPage,1000);
</SCRIPT>


"Tim Slattery" <Slattery_T@bls .gov> wrote in message
news:b9rqhv0mkr jcvko0a0s239dm3 udvglmkfu@4ax.c om...[color=blue]
> "shank" <shank@tampabay .rr.com> wrote:
>[color=green]
> >I am in fact trying to incorporate a server side variable. There must be
> >some way to bring that variable locally so it can be used... isn't there?
> >thanks![/color]
>
> Not directly. You'll have to write the value of the server-side
> variable into the client-side script. Something like this:
>
> <SCRIPT LANGUAGE="JavaS cript">
> if ("<%=Session("S oftHard")%>" == "Hard")
> {
> /* whatever */
> .
> .
> .
>
> The value of the Session variable "SoftHard" is written to the client
> as part of the client-side JavaScript code. The client sees this
> (assuming the value of SoftHard is "Soft"):
>
> <SCRIPT LANGUAGE="JavaS cript">
> if ("Soft" == "Hard")
> {
> /* whatever */
> .
> .
> .
>
> --
> Tim Slattery
> Slattery_T@bls. gov
>[/color]

[Richard Cornford]

Re: If Then statement

"shank" <shank@tampabay .rr.com> wrote in message
news:hLhTa.23$B B6.8149@twister .tampabay.rr.co m...[color=blue]
> I'm trying to assemble all the suggestions and I'm still not getting a
> redirect to happen.
> To simplify matters, I'm using 2 variables.
> Any help is appreciated!!!
> thanks!
>
> <SCRIPT LANGUAGE="JavaS cript">[/color]

The language attribute if deprecated in favour of type.

<script type="text/javascript">
[color=blue]
> var SoftHard == <%=Session("Sof tHard")%>[/color]

This should be an assignment (single equals sign) not an equality test
(double equals sign). If the value written into the script from the
Session object is a string then it should be quoted in the JavaScript
source:-

var SoftHard = "<%=Session("So ftHard")%>";
[color=blue]
> var OrderNo == <%=Session("Ord erNo")%>[/color]

Ditto:-

var OrderNo = "<%=Session("Or derNo")%>";
[color=blue]
> if SoftHard = "Hard")[/color]

Missing opening parenthesis and the if statement's expression should not
be an assignment (single equals sign) it should be a test for equality
(double (or triple) equals sign):-

if(SoftHard == "Hard")
[color=blue]
> {
> strPage = "hardpage.asp?O rderNo=" + OrderNo;
> }
> else if SoftHard = "Soft")[/color]

Ditto:-

else if(SoftHard == "Soft")
[color=blue]
> {
> strPage = "softpage.asp?O rderNo=" + OrderNo;
> }
> setTimeout("top .location.href = " + strPage,1000);
> </SCRIPT>[/color]

I can't see any reason for doing this test on the client at all. I don't
know ASP but, guessing at the syntax, what would be wrong with something
like (note: this will line wrap)? :-

<script type="text/javascript">
setTimeout("top .location = \"<%=( (Session("SoftH ard") ==
"Soft")?"softpa ge.asp":"hardpa ge.asp")%>?Orde rNo=<%=Session( "OrderNo")% >
\";", 1000);
</script>

Richard.

[shank]

Re: If Then statement


"Lasse Reichstein Nielsen" <lrn@hotpop.com > wrote in message
news:y8yqtf41.f sf@hotpop.com.. .[color=blue]
> "shank" <shank@tampabay .rr.com> writes:
>[color=green]
> > I'm trying to assemble all the suggestions and I'm still not getting a
> > redirect to happen.
> > To simplify matters, I'm using 2 variables.
> > Any help is appreciated!!!
> >
> > <SCRIPT LANGUAGE="JavaS cript">[/color]
>
> Should be
> <script type="text/javascript">
>
> The type attribute is mandatory, and the language attribute is deprecated.
>[color=green]
> > var SoftHard == <%=Session("Sof tHard")%>[/color]
>
> Should be:
> var SoftHard = "<%=Session("So ftHard")%>";
>
> Assignment is single "=".
> (I assume the Session function returns a string that is inserted
> unquoted, so I added quotes.)
>[color=green]
> > var OrderNo == <%=Session("Ord erNo")%>[/color]
>
> var OrderNo = <%=Session("Ord erNo")%>;
>
> (I assumed it was a number, so it didn't need quotes).
>[color=green]
> > if SoftHard = "Hard")[/color]
>
> should be:
> if (SoftHard == "Hard")
>
> Comparison is double "="
>[color=green]
> > {
> > strPage = "hardpage.asp?O rderNo=" + OrderNo;
> > }
> > else if SoftHard = "Soft")[/color]
>
> Should be:
> else if (SoftHard == "Soft")
> or just
> else
> (what else could it be?)
>[color=green]
> > {
> > strPage = "softpage.asp?O rderNo=" + OrderNo;
> > }
> > setTimeout("top .location.href = " + strPage,1000);
> > </SCRIPT>[/color]
>
> Please don't top post (answering above the message you reply to and
> including it unedited below).
>
> /L
> --
> Lasse Reichstein Nielsen - lrn@hotpop.com
> Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
> 'Faith without judgement merely degrades the spirit divine.'[/color]
------------------------------------
I've added some comments below. Maybe that will help. The help is
outstanding in this group, but I'm still not getting it. In my browser
status bar I get "Done with errors" and of course - no redirect. I changed
one of the variables var OrderNo to OrdNo thinking that maybe that was
messing up the syntax. I'm using OrderNo in the URL string. Any help is
appreciated!!!

<script type="text/javascript">
//Assign 2 variables. Both variables are text
var SoftHard = "<%=Session("So ftHard")%>";
var OrdNo = "<%=Session("Or derNo")%>";
//If SoftHard = Hard then show hardware page
if(SoftHard == "Hard")
{
//Assemble URL for use below
strPage = "hardpage.asp?O rderNo=" + OrdNo; //<--- is this the proper way to
assemble a string
}
//If SoftHard = Soft then show software page
else if(SoftHard == "Soft")
//Assemble URL for use below
{
strPage = "softpage.asp?O rderNo=" + OrdNo; //<--- is this the proper way to
assemble a string
}
//Provide url to get customer back to product page
setTimeout("top .location.href =" + strPage,1000); //<--- is this the proper
way to assemble a string
</script>

[Tim Slattery]

Re: If Then statement

"shank" <shank@tampabay .rr.com> wrote:
[color=blue]
>I'm trying to assemble all the suggestions and I'm still not getting a
>redirect to happen.
>To simplify matters, I'm using 2 variables.
>Any help is appreciated!!!
>thanks![/color]

Two equal signs for comparison, one for assignment! And "if"
statements always have to have the logical expression surrounded by
parens.
[color=blue]
><SCRIPT LANGUAGE="JavaS cript">
>var SoftHard == <%=Session("Sof tHard")%>[/color]

var SoftHard = "<%=Session("So ftHard")%>"
[color=blue]
>var OrderNo == <%=Session("Ord erNo")%>[/color]

var OrderNo = "<%=Session("Or derNo")%>"
[color=blue]
>if SoftHard = "Hard")[/color]

if (SoftHard == "Hard")
[color=blue]
>{
>strPage = "hardpage.asp?O rderNo=" + OrderNo;
>}
>else if SoftHard = "Soft")[/color]

else if (SoftHard == "Soft")
[color=blue]
>{
>strPage = "softpage.asp?O rderNo=" + OrderNo;
>}
> setTimeout("top .location.href = " + strPage,1000);
></SCRIPT>
>
>
>"Tim Slattery" <Slattery_T@bls .gov> wrote in message
>news:b9rqhv0mk rjcvko0a0s239dm 3udvglmkfu@4ax. com...[color=green]
>> "shank" <shank@tampabay .rr.com> wrote:
>>[color=darkred]
>> >I am in fact trying to incorporate a server side variable. There must be
>> >some way to bring that variable locally so it can be used... isn't there?
>> >thanks![/color]
>>
>> Not directly. You'll have to write the value of the server-side
>> variable into the client-side script. Something like this:
>>
>> <SCRIPT LANGUAGE="JavaS cript">
>> if ("<%=Session("S oftHard")%>" == "Hard")
>> {
>> /* whatever */
>> .
>> .
>> .
>>
>> The value of the Session variable "SoftHard" is written to the client
>> as part of the client-side JavaScript code. The client sees this
>> (assuming the value of SoftHard is "Soft"):
>>
>> <SCRIPT LANGUAGE="JavaS cript">
>> if ("Soft" == "Hard")
>> {
>> /* whatever */
>> .
>> .
>> .
>>
>> --
>> Tim Slattery
>> Slattery_T@bls. gov
>>[/color]
>[/color]


--
Tim Slattery
Slattery_T@bls. gov