Web Development

15-May-02 10:32

I spent yesterday banging together a website for my Kiwanis club and sent the link to several members for critique. One member today at lunch told me the page froze her computer. She's the only one using a Mac. Does anyone know of any peculiarities of the Mac browser that could cause this? There is nothing on the site but straight HTML, by the way. Not even a style sheet, nor a frameset, or any other modern techniques. I think she's daft, but I can't confirm it.

Not Active15-May-02 13:36

Not Active

15-May-02 13:36

We have had problems with web apps on Macs. The browser hangs or slows when users start other memory intensive apps like Photoshop, or when saving a file.

The opinion the development staff is that Macs are peices of crap. How can you have a modern OS that can't multitask.

Roger Wright15-May-02 16:06

15-May-02 16:06

I think I'd agree with your staff. The only thing I can imagine that might be causing the problem is the image used for a background. But it's not all that large (100K) and should be easily rendered. Weird.

Jfalconsfan15-May-02 15:08

Jfalconsfan

15-May-02 15:08

I put my company's purchase order system on our intranet as an asp application. We have both Macs and PCs. I've seen many times where the Macs could not display the page as intended if there was a single tag left unclosed, or some other issue that didn't bother the PCs at all. They can be really buggy, but I doubt the page froze the Mac. Our Macs crash much more than the PCs, and Mac users as a whole tend to know very little about computers. They often use old browsers because they don't know how to upgrade. When they start crashing, I run Norton Disk Doctor and it usually finds and corrects hard drive errors. But back to the browser issues: I have customers use their browsers as ftp clients since most don't know about or have ftp clients on their systems, and strange enough, Netscape on Mac works fine but IE on the Mac will not allow uploads as an ftp client, though it will show the contents of an ftp site. In conclusion to this long-winded post of mine, I do believe they're some strange differences. I just tell everyone to upgrade to the latest versions of their software... Good luck!

Jeff A. Moore

Roger Wright15-May-02 16:22

15-May-02 16:22

I suspect that this user has another problem. This is trivial HTML, and there are no unclosed tags other than the P tag, which shouldn't need a closing tag. Your assessment of the computer skills of Mac users matches my own experience, and I know this Mac is old. I'll recommend a software upgrade and leave it at that Big Grin | :-D

Thanks...

Philip Patrick18-May-02 0:17

Philip Patrick

18-May-02 0:17

Maybe on Mac even P needs a closing tag? Smile | :)

Philip Patrick
Web-site: www.stpworks.com
"Two beer or not two beer?" Shakesbeer

Need Web-based database administrator? You already have it!

Roger Wright18-May-02 5:22

18-May-02 5:22

It could be! I built a blank web page last night using Interdev, then ran it through a syntax checker. There are 17 errors! Maybe I should go back to using Notepad and the HTML spec...

Philip Patrick18-May-02 5:37

Philip Patrick

18-May-02 5:37

Syntax checker? You mean W3C HTML Validator? I'm using Interdev also and my pages with no errors. Err.... actually I'm using Interdev like a simple Notepad, just typing all the code by myself, lol.

But yes, I saw that there is not align="center" in Interdev for TD tag. It places "middle" instead, and this is not right according to W3C. I had a headache battling with it, LMAO

Philip Patrick
Web-site: www.stpworks.com
"Two beer or not two beer?" Shakesbeer

Need Web-based database administrator? You already have it!

Roger Wright18-May-02 5:50

18-May-02 5:50

Interdev sucks, but it still saves me a little bit of time. I can rough out the page quickly, but then I have to manually edit and tweak it in the Source editor to make anything work correctly. I tried some of the design-time controls, but they just make matters worse. I'd be willing to bet that nothing at microsoft.com was built using it Big Grin | :-D

Philip Patrick18-May-02 6:10

Philip Patrick

18-May-02 6:10

Heh, never used all those design-time things. What for? I'm always using Source editor to make pages, thus they are cleaner. But in ASP development I didn't find better tool. I tried Dreamweather (or whatever it called) and it was really sucks, too many unuseful features with less usefull. And had a headache to setup it so I can view my ASP files, lol

So still using Interdev for ASP development. If I need to make a quick layout - so FrontPage makes it easy Smile | :)

Maybe you can tell me some good tool for ASP development? I would like to test some, maybe I'll find better Smile | :)

Philip Patrick
Web-site: www.stpworks.com
"Two beer or not two beer?" Shakesbeer

Need Web-based database administrator? You already have it!

Roger Wright18-May-02 6:41

Re: JScript.Net compiler bug

18-May-02 6:41

I haven't tried any .asp yet. This stuff is straight HTML. Nice to know there's something that Interdev does well - it sure isn't any good for making simple web pages! I think the program you're referring to is DreamWeaver - I've seen really mixed reviews of it, too. I'm still looking for a tool that actually works, though Smile | :)

JScript.Net compiler bug

Ben Burnett15-May-02 9:38

Ben Burnett

15-May-02 9:38

So I think I’ve discovered a bug in the JScript.Net compiler. It has to do with the VBArray object and it’s use in derived class' constructor; specifically when initializing the base class. I’ve taken a brief look into the compilers’ source code, but the problem isn’t just popping out at me, so further exploration into this will be necessary.

The following code demonstrates the bug.

class BaseClass {
    
    private var a_ : Array;
    
    public function BaseClass ( a : Array ) {
    
        this.a_ = a;
    
    }   

}

    
class DerivedClass extends BaseClass {    
    
    public function DerivedClass ( a : VBArray ) {
    
        super ( a.toArray () ); // compiler chokes here
    
    }
    
}

Here's a dump of the error, if anyone's interested. It looks like it got a problem with creating a local variable (why?), but that's just a guess at this point.

***INTERNAL COMPILER ERROR***
Microsoft.Vsa.VsaException: InternalCompilerError (0x80133021): System.ArgumentNullException: Value cannot be null. 
Parameter name: local
   at System.Reflection.Emit.ILGenerator.Emit(OpCode opcode, LocalBuilder local)
   at Microsoft.JScript.Member.TranslateToLateBinding(ILGenerator il, Boolean speculativeEarlyBindingsExist)
   at Microsoft.JScript.Binding.TranslateToIL(ILGenerator il, Type rtype, Boolean preSet, Boolean preSetPlusGet, Boolean calledFromDelete)
   at Microsoft.JScript.Binding.TranslateToIL(ILGenerator il, Type rtype)
   at Microsoft.JScript.Member.TranslateToILWithDupOfThisOb(ILGenerator il)
   at Microsoft.JScript.Binding.TranslateToILCall(ILGenerator il, Type rtype, ASTList argList, Boolean construct, Boolean brackets)
   at Microsoft.JScript.Call.TranslateToIL(ILGenerator il, Type rtype)
   at Microsoft.JScript.Class.EmitInitialCalls(ILGenerator il, MethodBase supcons, ParameterInfo[] pars, ASTList argAST, Int32 callerParameterCount)
   at Microsoft.JScript.FunctionObject.TranslateToIL(CompilerGlobals compilerGlobals)
   at Microsoft.JScript.FunctionDeclaration.TranslateToILInitializer(ILGenerator il)
   at Microsoft.JScript.Block.TranslateToILInstanceInitializers(ILGenerator il)
   at Microsoft.JScript.Class.TranslateToCOMPlusClass()
   at Microsoft.JScript.Class.TranslateToIL(ILGenerator il, Type rtype)
   at Microsoft.JScript.Block.TranslateToIL(ILGenerator il, Type rtype)
   at Microsoft.JScript.ScriptBlock.TranslateToIL(ILGenerator il, Type rtype)
   at Microsoft.JScript.ScriptBlock.TranslateToILClass(CompilerGlobals compilerGlobals)
   at Microsoft.JScript.VsaStaticCode.TranslateToIL()
   at Microsoft.JScript.Vsa.VsaEngine.DoCompile()
   at Microsoft.Vsa.BaseVsaEngine.Compile()

cheers,
-Ben

di~v~inci18-Jan-10 3:31

di~v~inci

18-Jan-10 3:31

you ever figure this one out?

Re: JScript.Net compiler bug

Ben Burnett18-Jan-10 7:52

Ben Burnett

18-Jan-10 7:52

No, I never really looked into it any further.

Regards,
-B

"[F]reedom isn't a licence, it's responsibility." [David Gerrold, Author's Note in "The Man Who Folded Himself", 2003, p. 119]

Image Viewer problem...

code dope15-May-02 4:06

code dope

15-May-02 4:06

Friends,

I'm writing an Web Image Viewer so that our Clients can view their stuff from anywhere.

However, once the correct image has been selected, I've got a frames set-up with the image in one frame and a toolbar in the lower one, with Rotate, Invert etc commands to manipulate the Image. (all done using an ISAPI Extension). They all work OK up to a point.

If, for example, I rotate the Image by 180 (hard coded) degrees, an asp page is opened, called RotatedImage.asp, that calls the ISAPI extension, which does the processing, and displays the Image rotated. BUT, if I want to get the Image back to where it was, I should be able to hit the Rotate button again and "Hey Presto!". No way! It just stays the same.

I assume that there is a copy of the RotatedImage.asp file being held somewhere in cache and this is what is being displayed. If so, how can I stop this and get a fresh page each time I hit Rotate?

I have tried using:

function OnRotate()
{
parent.main.location.replace("RotatedImage.asp");
}

instead of:

function OnRotate()
{
parent.main.location.href("RotatedImage.asp");
}

but this doesn't work either, although it does improve things.

It seems the only way I can create a new RotatedImage page each time is by usig "window.open("RotatedImage.asp")" but that opens a new Browser window on top of the frame, so no good either.

Any ideas?

Thanks for your patience!

code dope.

Not Active15-May-02 6:08

Not Active

15-May-02 6:08

Just a quick thought. Did you set the target correct when you used the open method? What about using the navigate method?

code dope15-May-02 8:29

code dope

15-May-02 8:29

Mark Nischalke wrote:
Did you set the target correct when you used the open method?

thanks for the reply, Mark.

No, I didn't set a Target when I used the Open() method. How do I do that? The syntax?

As you can see, my knowledge of JavaScript is close to zero - I usually work in C, C++, MFC etc. Suppose I'll have to buy yet another book and learn some!

I appreciate your help anyway.

code dope.

Not Active15-May-02 13:38

Not Active

15-May-02 13:38

Search MSDN, online or otherwise. There are plenty of sites out there for help with JavaScript.