Home Forums Discussions General Discussion To: Tech Support. Here?s another Hint?

Hi All,

I don?t know if many people on this user board know about ?Windows Form User Controls?? These controls are designing tools for programmers to design GUIs (Graphical User Interfaces). I?m going to talk about a control called the ?DataGridView?.

One major problem with the eRx is slowness redrawing of cell rows. This is mainly due to the DataGridView control. The DataGridView is a user control that a programmer drags to a Windows form (design view), or programmatically write code to build during development. For some time, Microsoft Visual Studio has had some bugs associated with their DataGridView user control.

One of those bugs happens to be dealing with GDI+ (Graphics or Drawing) for NVidia Graphics (Video) cards. This is mostly with older NVidia graphic (video) cards, mainly in older Windows XP PCs. There are many flavors of NVidia cards (Quadro, GX, GT(S/X), Geforce, etc.). That?s what makes this problem a little more challenging. Not all NVidia cards have this issue, but the majority of the older cards do. The DataGridView doesn?t error much with other graphic cards such as, ATI Radeon.

To: AC Loyal Users: Another possible solution to correct this problem with the slow processing prescription writer (eRx) is, update your graphics (Video) cards drivers, on older PCs. Whichever PC brand (Dell, HP, Gateway, etc.) you will have to go to the manufacture?s website, and download the latest video (graphic) driver for your video card.

If that doesn?t solve the problem then? There is a wonderful step-by-step workaround posted by Sandeep here.

To: AC Core Development Team (AC developers): The MS DataGridView does not get along very well with NVidia?s older graphic cards. This is partly Microsoft?s and NVidia?s fault. Of course, big money is involved, that?s why it?s not out in the open, on Microsoft?s or NVidia?s forums. They (Microsoft and Nvidia) have worked these issues out for the new .Net Framework and new PCs, currently on the market. But nothing was said about the older stuff. Go figure! That?s up to us (the developers) to figure out. Below are some very helpful forums that have helped me in the past.

1. http://forums.nvidia.com/index.php?showtopic=63614

2. http://social.msdn.microsoft.com/Forums/en-US/winforms/thread/879ab314-07b2-484e-989c-5661e5bc234a/

3. http://www.xtremedotnettalk.com/showthread.php?t=95433

4. http://www.dotnetmonster.com/Uwe/Fo...dView-bad-performance-searching-patterns

5. http://rdatagridview.blogspot.com/

I hope this is helpful.

I posted this under the wrong forum group heading. It should be in 'Problems' forum. My bad! Bert, could you please move this thread to its proper place, please. Thanks.

WOW, this seems to hit the nail on the head. It seems a likely candidate.

If it is an nvidea problems, one solution would be to go ATI cards.

The cheapest I found ATI radeon cards was 29.00 (but a $10.00 rebate and free shipping) from newegg. Rebates are fine for 1 but if you need 4-10 cards, it is a problem, since they are limited to 1 per address.

You can also get new Dell x300s (DVI) on ebay for about 15.00

Now in many laptops our video graphics cards even when manufactured by another company like ATI or NVidia outsourced and promoted as a nice upgrade for better faster performance and graphics... these cards are still many times built-in hard solder like as part of the actual motherboard... I know that I have one of the Mentioned above NVidia cards a Quadro Version I believe 285 or something like that on my newest (3 years old now) Dell Laptop... So what to do if this is the problem?

I am so glad to have come across this because I have been having intermidant Blue Screen Crap with every kind of warnings and Dell Kept trying to update drivers and other stuff to no avail and more recently wanted me to reload my harddrive but I have yet to do so.

Now I wonder how much of my errors are actually simply these back and forth code problems between two large waring parties and us end users are simply stuck in the middle. Worst yet, How much do the OEM's know about this no less how much do their tech's boots on the ground really know about this and to help tease out what is what???? If only the VP in charge of Tech support and software, hardware conflicts knows about this but his techs on the phone don't know about it, then it's as good as not knowing at all.... Sheesh....

Now I need to check the Cards all around the office... now then it would seem to me that even the "Main" or server machine would then experience problems if it had the "right, Wrong" kind of card might we say???? Yes? So that even the main home base, server machine in a small XP Network P2P set up would possibly glitch on this because it is really the card and it software drivers verses the OS's code conflicting or messing one another up???? So we have to make sure we have an ATI like, non-Nvidia like card inside our server then I would assume before moving forward with updating and installing for smooth sailing and useage with AC????

Aaaaaahhhhhh!!!!! Well at least it is an answer even if I don't exactly "like" the answer.... now we know what the deal is and how to hopefully address it... Thanks much for that....

Paul

Lawrence, don't worry about it. General is fine. I don't think anyone notices anyway. It's all good.

Interesting reading:

http://blogs.msdn.com/b/oldnewthing/archive/2004/03/05/84469.aspx

JamesNT

@Dr. Wendell ? Let?s hope that AC has seen this post. Yep, ATI cards aren?t all that bad.

@Paul (Hockeyref) ? Glad to know it was helpful.

@Bert ? Thanks my friend.

@JamseNT ? Nice one (link) to add to the collection. Thanks for the addition.

Wendell,
I just installed a MSI R4350-MD512H/D3 Radeon HD 4350 512MB 64-bit DDR3 PCI Express 2.0 x16 HDCP Ready Low Profile Video Card on my Dell Vostro 230 Windows 7 Pro. The windows Gaming graphics experience went from 4.5 to 6 (max 7.9.) Nice deal for $29.99 - $10 rebate. however installation was a pain. Card wasn't auto detected. Installation CD didn't work. had to goto amd.com and run AMD driver autodetect in order to get the thing to work.

Using Amazing Charts 5.1.7 I have noticed a speed up in the prescribe section.

Dare you to say that without taking a breath!

Ken, what graphics were you using to get a 4.5?

Has anyone with Windows 7 / Vista tried disabling hardware acceleration? Most people (at least the ones I've heard from) have got ePrescribe working just fine in XP with disabling hardware acceleration.

I have tried everything to try and get ePrescibing to work faster. Disabling hardware acceleration finally helped. Thank you. It's been extremely frustrating figuring this out.

Bert,
Dell Vostro 230 running Win 7 Pro, 4 GB RAM, Integrated Video, GMA X4500

Pass the O2 ! That was a copy and paste job for sure.