Web Development

Re: How to implement several colors schemes for a web site?

30-Sep-07 21:56

yea it seems to be a likely solution Scott. I think they would be storing the prefered style in the database or something to make this preference saved for future use.

but still some advanced features do make question marks in my mind ??

Rocky

You can't climb up a ladder with your hands in your pockets.

Scott Dorman1-Oct-07 2:50

Scott Dorman

1-Oct-07 2:50

Storing the preferred style in a database would be good to provide the same experience anytime the user logs in. The other option would be storing it in a cookie, but that becomes machine specific.

What advanced features are you referring to?

Scott.

—In just two days, tomorrow will be yesterday.

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Re: How to implement several colors schemes for a web site?

Rocky#1-Oct-07 3:39

Re: How to implement several colors schemes for a web site?

1-Oct-07 3:39

The advanced features I was talking abt were... well if u must have seen the myYahoo page now and it offers you IFrames (I think) in which it shows u many different modules like horoscope, sports news etc etc and you can customize the modules as well as their placement which is something really nice! but I was wondering how they manage to do all these things.

Rocky

You can't climb up a ladder with your hands in your pockets.

Scott Dorman1-Oct-07 3:57

Scott Dorman

1-Oct-07 3:57

Actually, I haven't seen the myYahoo page but I have seen pages similar. The conceptual idea behind those "frames" is the idea of "web parts", first introduced (IIRC) by SharePoint several years ago. There are several different ways to accomplish this, depending on the amount of work you want to do and what technologies you want to use. You should be able to find more information on them either here on CP or on Google.

Scott.

—In just two days, tomorrow will be yesterday.

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Re: How to implement several colors schemes for a web site?

Rocky#1-Oct-07 4:10

Re: How to implement several colors schemes for a web site?

1-Oct-07 4:10

Yea Surely I'll look into that; you know right now I'm learning ASP .net and I'm gonna be making my first project just for the sake of learning now. well I did make a project a long time ago in asp.net 1.0 but I've almost forgotten all abt it.

What buzzes me the most is the fact that there are so many things to learn in order to be a good web developer like ASP .NET (or anyother server side language), JavaScript, AJAX, Xml, Web services, HTML, XHTML, XSL, CSS, then come in those designing tools like dreamweaver, frontpage photoshop and bla blah blah...

right now I know things like ADO .NET, XML, XSL , CSS, HTML, XHTML and a few bits and pieces of ASP .NET, photoshop, frontpage and Javascript .
So really thats quite a lot of work u know. and I'm trying to concentrate on ASP .NET and designing pages right now so that I can start doing some work u know.

Wish me luck!! Rose | [Rose]

Rocky

You can't climb up a ladder with your hands in your pockets.

DreamerPhantom1-Oct-07 11:04

DreamerPhantom

1-Oct-07 11:04

try the following link (javascript code)

<a href="http://www.dynamicdrive.com/dynamicindex9/stylesheetswitcher.htm">http://www.dynamicdrive.com/dynamicindex9/stylesheetswitcher.htm</a>[<a href="http://www.dynamicdrive.com/dynamicindex9/stylesheetswitcher.htm" target="_blank" title="New Window">^</a>]

Re: How to implement several colors schemes for a web site?

Rocky#1-Oct-07 18:53

Checking a Null ImageButton Control?

1-Oct-07 18:53

Great Link!!, Thanks a lot

Rocky

You can't climb up a ladder with your hands in your pockets.

Difference ?

AliAmjad30-Sep-07 2:27

AliAmjad

30-Sep-07 2:27

Actually i am working on a distributed web crawler and currently in a url normalization phase i don't get one thing and that is what is the difference between http://www.example.com/dir and http://www.example.com/dir/ are these two paths are not identical or they are different, if different then how?

Re: Difference ?

Guffa30-Sep-07 4:16

Guffa

30-Sep-07 4:16

The difference is that an url ending with a slash is known to be a folder.

When you use the first url in a request, it goes like:

browser: "Gimme the file http://www.example.com/dir"
server: "Can't do that. That's not a file, that's a folder"
browser: "Ok, gimme the default file in http://www.example.com/dir/"
server: "Here you go"

For the second url, it't just:

browser: "Gimme the default file in http://www.example.com/dir/"
server: "Here you go"

---
single minded; short sighted; long gone;

Re: Difference ?

AliAmjad30-Sep-07 5:07

AliAmjad

30-Sep-07 5:07

So are you saying that i should normalize the http://www.example.com/dir to http://www.example.com/dir/ means i must add a trailing slash to it.

Re: Difference ?

Guffa30-Sep-07 12:29

Guffa

30-Sep-07 12:29

It works either way, but if you know that it's a folder, there is no reason to write the url without the trailing slash.

---
single minded; short sighted; long gone;

hifiger200428-Sep-07 6:34

28-Sep-07 6:34

Hi,

Can you tell me if how can I check a null Imagebutton? How do we know if there is no image assign in Imagebutton?

Thanks

hifiger2004

DanB198329-Sep-07 9:34

DanB1983

29-Sep-07 9:34

Not being funny but you have even tried to solve this yourself if you had it would have taken 10 minutes.

I suggest you look at this:

http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.imagebutton_members.aspx

and set this www.msdn.com in you favourites it will save you and us a lot of time

Dan

hifiger20041-Oct-07 12:52

1-Oct-07 12:52

Hi Dan,

I suppose to check if the image if it will display or not. And if won't display the image it will be changed programmatically into an image - blank.jpg

Please see my source code below.

ImageButton1.ImageUrl = "~/Images/Item_Thumbs/image1.jpg"
ImageButton2.ImageUrl = "~/Images/Item_Thumbs/image2.jpg"
ImageButton3.ImageUrl = "~/Images/Item_Thumbs/image3.jpg"

If ImageButton1.ImageUrl Is Nothing or String.IsNullOrEmpty(ImageButton1.ImageUrl) Then
ImageButton1.ImageUrl = "~/Images/Item_Thumbs/blank.jpg"
End If

If ImageButton2.ImageUrl Is Nothing or String.IsNullOrEmpty(ImageButton2.ImageUrl) Then
ImageButton2.ImageUrl = "~/Images/Item_Thumbs/blank.jpg"
End If
If ImageButton3.ImageUrl Is Nothing or String.IsNullOrEmpty(ImageButton3.ImageUrl) Then
ImageButton3.ImageUrl = "~/Images/Item_Thumbs/blank.jpg"
End If

hifiger2004

DanB19831-Oct-07 21:55

DanB1983

1-Oct-07 21:55

Hey

your logic seems fine as does how you are implementing it. The one thing I would consider is rather than loading blank.jpg I would just set the appearance of of the image button to your blank colour as the code will not have an image and it will not rely on an image being there. If the image isnt there it will display funny (possibly) so is not terrible but wont look all that professional.

Dan

hifiger20043-Oct-07 8:59

3-Oct-07 8:59

But how can I do that?

I mean, it can be set to visible = false, but at first is how can I detect if the ImageUrl is not showing the image.

If there's definite code or way on checking the imagebutton.imageurl if the image is not showing then that would be fine.

It's just like doing a code for example:

If ImageButton.ImageUrl = Image not showing then
ImageButton.Visible = false
End If

Something like that. The only thing is how to check the image if it shows

Thank you Dan for sharing your ideas Smile | :)

hifiger2004

DanB19833-Oct-07 9:04

DanB1983

3-Oct-07 9:04

Ahhh I see. Well if the imagebutton is not showing an image it means that it hasnt found the image or cant read it etc so what you would have to do is check the image file exists. It sounds to me like you are going to a lot of trouble to make sure an image button contains an image - just make sure that the image url always points to a valid image rather than doing all this checking or before each load check the image exists if it doesnt then hide the button.

Dan

hifiger20046-Oct-07 6:29