ASP.NET Discussion Boards

Re: Image.FromStream - Parameter is not valid. HELP!

Christian Graus19-Mar-09 15:53

19-Mar-09 15:53

What if you insert it with one page, and then try to retrieve it from the other ? This way you can tell if the issue is with the data going in, or coming out.

Christian Graus

Driven to the arms of OSX by Vista.

Re: Image.FromStream - Parameter is not valid. HELP!

Stein The Ruler19-Mar-09 16:30

Stein The Ruler

19-Mar-09 16:30

thats what I'm doing now.

I upload the picture using my real app and try to display it in the test app, ending up with "Parameter not valid".
If I use the test app to upload it works.

So its clearly the storing of the images, I just cant figure out what it is. The code in both project looks exactly the same, the same db and the same connectionstring.. Go figure Wink | ;)

I'll probably end up with saving to disk and just storing a pointer in the db, but I don't like to change the design just because I can't figure out the issue, if you know what I mean Smile | :)

Re: Image.FromStream - Parameter is not valid. HELP!

Christian Graus19-Mar-09 17:08

Christian Graus

19-Mar-09 17:08

Yeah. What if you compare the bytes that are stored then, to try to work out how they differ ( are they the same size ? Are they modified in some consistent way ? )

Christian Graus

Driven to the arms of OSX by Vista.

CompareValidator firing server side on date input [modified]

DanB198319-Mar-09 12:32

DanB1983

19-Mar-09 12:32

Hey

I have a CompareValidator checking that and end date is after a start date. I enter two dates in dd/mm/yyyy format so for example:

start = 21/03/2009
end = 22/03/2009

The client side validation seems happy enough and doesn't whinge. However when I submit the form the server side sets the Page.IsValid to false and the specific validator's error message is shown. First thoughts were localisation settings so I added UICulture="en" Culture="en-GB" to the page tag. However the same response.

The client side seems happy but the server side doesnt.

Does any one have any ideas?

*Edit also tried uiCulture and culture as the msdn article had a typo.

At university studying Software Engineering - if i say this line to girls i find they won't talk to me

Dan

modified on Thursday, March 19, 2009 6:41 PM

Re: CompareValidator firing server side on date input

DanB198320-Mar-09 2:33

DanB1983

20-Mar-09 2:33

Hey

Half solved this, it seemed to be a "quirk" with a devx DateEdit control, I just replaced it with a text box with appropriate validation for now.

At university studying Software Engineering - if i say this line to girls i find they won't talk to me

Dan

Problem with image transparent background

StuffyEst19-Mar-09 9:25

StuffyEst

19-Mar-09 9:25

So I've searched for hours for a good fix or a workaround on this problem.

What is needed : Draw a background canvas(white), and on top of it I have to draw - Grid(with transparent background), Graph1(with transparent background), Graph2(with transparent background) and whatever else.

What is done : I have all the functions which all work, but only when they aren't ontop of each other.

Problem : Everything I draw with a seperate function has a white background (NOTE: Something.Clear(Color.Transparent); doesn't work, makes the background black.. which really won't help)

So I've found some workarounds how to do completely transparent pictures and I even found some .dll that would suit me BUT it has some nice licence things that won't work for me unfortunately, so I'm back to square one.

[PS. I hope people won't start to flame to look harder on Google or whatever, so all I can say is.. I have and I was unsuccsessful]

Re: Problem with image transparent background

Christian Graus19-Mar-09 9:55

Christian Graus

19-Mar-09 9:55

Your browser will display pngs with transparency, I thought. This all sounds a little too difficult to me tho, have you considered using silverlight instead ?

Christian Graus

Driven to the arms of OSX by Vista.

Re: Problem with image transparent background

StuffyEst19-Mar-09 9:58

StuffyEst

19-Mar-09 9:58

No I haven't.. Guess I'll take a look into it right away Smile | :)

(about the Png, for some reason it didn't even let me save to png.. but I had no problem saving to Gif.. so I'll take a look into that aswell)

Drag and Drop images using .net and flash

dotnetlover_1119-Mar-09 8:06

dotnetlover_11

19-Mar-09 8:06

Hello,

I'm not sure if this is the right forum to ask my question, but it involves Flash and .net.

I need to drag small images and place them over a larger image such that they blend well and look like one image. This image then needs to be saved in the database (SQL Server). Later this image needs to be fetched from the db and displayed in the format it was saved earlier. I am new to flash and have no clues how to go about this.

The site is developed in .net and the database used is SQL Server and the above described functionality needs to be developed using Flash/Ajax/Javascript.

Any help would be appreciated.

Thanks.

Re: Drag and Drop images using .net and flash

Christian Graus19-Mar-09 9:53

Christian Graus

19-Mar-09 9:53

So, this is essentially a flash question ? I'd suggest trying the web dev forum, but I'm not sure if this is the right place for Flash questions overall.

Christian Graus

Driven to the arms of OSX by Vista.

SiteMapPath problem

TAK7819-Mar-09 6:52

TAK78

19-Mar-09 6:52

I'm trying to build a sitemap so users can follow the path.
My issue is that I can have multiple same landing pages of categories under different industries or products.
Here is a sample of my sitemap:
<siteMapNode url="~/home.aspx" title="Home" description="Home Page">

<siteMapNode url="~/industry.aspx?ztid=0" title="Automotive" description="">
<siteMapNode url="~/productDetails.aspx?catID=16" title="Wire Marker Booklets" />
<siteMapNode url="~/productDetails.aspx?catID=28" title="Cable Marker Dispenser" />
</siteMapNode>

<siteMapNode url="~/industry.aspx?ztid=1" title="Aviation/Aerospace" description="" />
<siteMapNode url="~/productDetails.aspx?catID=1" title="Self-Laminating Labels" />
</siteMapNode>

<siteMapNode url="~/productList.aspx?ztid=0" title="Pre-printed Wire Markers" >
<siteMapNode url="~/productDetails.aspx?catID=16" title="Wire Marker Booklets" />
<siteMapNode url="~/productDetails.aspx?catID=28" title="Cable Marker Dispenser" />
</siteMapNode>

<siteMapNode url="~/productList.aspx?ztid=1" title="Self Laminated Labels" />
<siteMapNode url="~/productDetails.aspx?catID=1" title="Self-Laminating Labels" />
<siteMapNode url="~/productDetails.aspx?catID=16" title="Wire Marker Booklets" />
</siteMapNode>

<siteMapNode url="~/productList.aspx?ztid=2" title="Blank Printable" description="" />
<siteMapNode url="~/productDetails.aspx?catID=1" title="Self-Laminating Labels" />
<siteMapNode url="~/productDetails.aspx?catID=16" title="Wire Marker Booklets" />
<siteMapNode url="~/productDetails.aspx?catID=28" title="Cable Marker Dispenser" />
</siteMapNode>

</siteMapNode>

How could I create this without having to create like
<siteMapNode url="~/productDetails.aspx?catID=28a" title="Cable Marker Dispenser" />
<siteMapNode url="~/productDetails.aspx?catID=28b" title="Cable Marker Dispenser" />
<siteMapNode url="~/productDetails.aspx?catID=28c" title="Cable Marker Dispenser" />

So it won't create an error? Would also not be efficient for programming.

Please advise, I'm also open to other solutions.

Thanks
Thomas

stress testing webservice

dd31415919-Mar-09 6:25

dd314159

19-Mar-09 6:25

We have a webservice that seemed to be doing fine until it wasn't - and we are having a @@#$!! of a time figuring out what happened.

We added "better" caching in and were fairly confident it was caching when it was supposed to and expiring when it was supposed to.

The question is: how to do better upfront testing? How do you best go about stress testing your app before it embarasses you?

Thanks.

Re: stress testing webservice

N a v a n e e t h19-Mar-09 6:51

N a v a n e e t h

19-Mar-09 6:51

There are many tools out there. I have used WebLoad[^] and it worked well for me.

Navaneeth

How to use google | Ask smart questions

Re: stress testing webservice

dd31415919-Mar-09 7:03

dd314159

19-Mar-09 7:03

Thanks for the help.

Re: stress testing webservice

Yusuf19-Mar-09 6:55

Yusuf

19-Mar-09 6:55

dd314159 wrote:
We have a webservice that seemed to be doing fine until it wasn't

Isn't that the case all the time?

dd314159 wrote:
How do you best go about stress testing your app before it embarasses you?

embarrass who? I always put 3 piece suite and look good in front of my customers. Smile | :)

Seriously, Have you tried Web Application Stress Tool?[^]

Yusuf

Oh didn't you notice, analogous to square roots, they recently introduced rectangular, circular, and diamond roots to determine the size of the corresponding shapes when given the area. Luc Pattyn[^]

Re: stress testing webservice

dd31415919-Mar-09 7:03

dd314159

19-Mar-09 7:03

Thanks for the answer.

Grinder

David Mujica19-Mar-09 8:20

David Mujica

19-Mar-09 8:20

I've heard some good things about Grinder. Open source.

http://grinder.sourceforge.net/g3/features.html[^]

Re: Grinder

Christian Graus19-Mar-09 10:00

Christian Graus

19-Mar-09 10:00

I am just planning to go to Minnesota for a food festival so I can see Judas Priest play all of British Steel for $10. So, when you said 'grinder'... ( grinder is a song on that album )

Christian Graus

Driven to the arms of OSX by Vista.

add images with list item in listbox in asp.net

Mogaambo19-Mar-09 5:28

Mogaambo

19-Mar-09 5:28

Can Any one done this before, i am struck here.

“You will never be a leader unless you first learn to follow and be led.”
–Tiorio

"Coming together is a beginning, staying together is progress, and working together is success." Henry Ford

Re: add images with list item in listbox in asp.net

N a v a n e e t h19-Mar-09 6:52

N a v a n e e t h

19-Mar-09 6:52

I don't think a listbox can show images.

Navaneeth

How to use google | Ask smart questions

Re: add images with list item in listbox in asp.net

Yusuf19-Mar-09 6:57

Yusuf

19-Mar-09 6:57

asp.net does not have Image Listbox. you can write your own though!

Re: add images with list item in listbox in asp.net

Abhijit Jana19-Mar-09 18:47

Abhijit Jana

19-Mar-09 18:47

I will suggest you to write your own custom control using DIV.

cheers,
Abhijit
CodeProject MVP

Checking the fail status of windows service

gottimukkala19-Mar-09 5:06

gottimukkala

19-Mar-09 5:06

Hi
How can we check the failure of windows service programatically. I have a windows service that elapses every 5 minutes and I need to check if the service is failed then restart it automatically in my code. I googled but I couldnt find the Failed Status for the windows service.

Any ideas please!

Re: Checking the fail status of windows service

Abhijit Jana19-Mar-09 5:40

Abhijit Jana

19-Mar-09 5:40

gottimukkala wrote:
. I have a windows service that elapses every 5 minutes and I need to check if the service is failed then restart it automatically in my code.

From where do you want to check it?

BTW : How does it come to ASP.NET Forum ? Sigh | :sigh:

cheers,
Abhijit
CodeProject MVP

Re: Checking the fail status of windows service

N a v a n e e t h19-Mar-09 6:54

N a v a n e e t h

19-Mar-09 6:54

gottimukkala wrote:
I need to check if the service is failed then restart it automatically in my code

Wrap your main method in try/catch blocks. So you can handle *all* exceptions. BTW, this question has nothing to do with ASP.NET. Plese post in the correct forum next time.

Navaneeth

How to use google | Ask smart questions

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