We have an Intraweb 14.2.9 web application running for our customers, that that works smooth and very fast.

However, when we reach a critical amount of 340 sessions, the intraweb application instantly 'crashes' (response becomes too slow to even show the logon page). Logged on users can work for a little while, new users are directly unable to logon. There is no build up in slowness, it just instantly happens as soon as we reach the user amount.

This takes every time about 15 minutes to automatically resolve and returns back to normal, after which users can logon again and all is as fast as prior to the ordeal.
Due to less users, during weekends this never happens...on peak days it happens multiple times per day.

We did a lot of research on the complete infrastructure and architecture, and we tried several different solutions, but non seems to resolve the underlying issue.
We are now 100% sure that the issue is within the intraweb web application itself. We have multiple applications (mobile apps, web applications, windows applications) connected to the database, including an exact copy of the project with less users, and they all remain to work fine when this crash happens.

Last night we added 8 extra cpu's to the database server, just to see if we would go over the 340 sessions. It did not, it happens every time for 15 minutes.

Before we run into technical details, is this behavior something someone recognizes? Any clues on where to dig? We are running out of options, so any input would be welcome.

Thanks a lot!

How can I hide/show a column on a TIWjQDBGrid at runtime ?

After v15.2.42, when releasing a form with Release, it begun to raise an AV.
Am I missing something? Just installed newer version and compile.

Analysing debuger, it gives the AV on call TIWBaseContainer.Destroy

From version history:
15.2.43 Version History
BY ALEXANDRE MACHADO
NOVEMBER 12, 2021
INTRAWEB HISTORY 15.2, UNCATEGORIZED
Bug fixes
* Fixes rare AV when creating and destroying components at runtime owned by IWContainers

This didn't happen to me until this version.
Something went wrong here.
Can you see it, Alexandre??!!!!!!!!!!!

C++ Builder 11.0 / IW 15.2.47

TIWComboBox ItemIndex is not always updated correctly. 

For example: TIWComboBox Items populated with

A=1
B=1
C=1
D=2

and ItemsHaveValues = true so that only Names[] values A, B, C, D are visible. 

When selecting:
A, ItemIndex == 0 // correct
B, ItemIndex == 0 // incorrect
C, ItemIndex == 0 // incorrect
D, ItemIndex == 3 // correct

The ItemIndex seems to be affected by the Values[] column. 

Desired behavior is for ItemIndex to be updated to the true selection offset regardless of the Items content.

Demo attached.

Attached Files

  IWTEST.zip (Size: 1.61 KB / Downloads: 3)

Hello i am new user here.

I install the Intraweb 14 in the delphi 10.4.2

Everything seems ok.

But when i start Delphi i get this error

<<Image in attachment>>



Thanks

Attached Files

Thumbnail(s)
   

Good Morning,
Good morning,
I'm testing version 15.2.47 trying to migrate an old  Intraweb 14 project.
At run-time I got an access violation message in the module IwbaseHTMLForm

...
public:
/ * TIWBaseForm.Create * / inline __fastcall virtual TIWBaseHTMLForm (System :: Classes :: TComponent * AOwner): Iwbaseform :: TIWBaseForm (AOwner) {}

....


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[/img]

Do you have some suggestions how to solve that problem ?
Thank you in advance.

Francesco Sgaravatti

IW 15.2.46/47 Get error message when Delphi started loading

  Unable to find the program entry point
  @Iwcontrol@TIWCustmControl@RenderAsync$qqrp30Iwrendercontext@TIWCompContext
  (Dynamic link library)
  C:\Users\Public\Documents\Embarcadero\Studio\20\Bpl\iw15tmsdxe11

No problem when go back to install IW 15.2.41

... Not support TMS Intraweb Componets ?

Hi guys,

new IntraWeb release is available. https://www.atozed.com/2021/11/intraweb-15-2-47/

This update is an absolute must for Delphi 11 users

enjoy! 

Hi,

I have a region with a few controls that I display in a IWmodalwindow.
When I put a IWSelect component inside the region the dropbox goes behind the entire region.
This happens only if the region is used as a Content Element of a IwModalwindow.
Same behaviour if you do the same thing in the iwmodalwindow demo.
I use Delphi 10.4 and IW 15.2.46.


Can you please check if what I found is correct?

Thanks in advance
Fabrizio

Hello,

I am starting to migrate my VCL application to Intraweb. I'm not used to working with it. In my VCL code, I am running an external application with "ShellExecute". In Intraweb, I don't know how to do this.