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Some things that come to mind here - you don't need to get the index of the lvwMyLvw columns every time. I would store these index values as constants and refer to those instead.
I would also look at using listview virtualization to add small chunks of data - by all means keep your data in memory, but use virtualization to only display the necessary amount, and provide a callback to fill the items as necessary; there's no need for the listview to contain all the data.
Is your listview being sorted on insert? If it is, switch that feature off and sort your data in memory instead - this is a much less expensive technique than letting the listview do it.
Did you know that you can create listview items in memory without touching the control? You could create the items and then add them to the visual listview using AddRange which is much more efficient than adding an item at a time using Add.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
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Thanks a lot Pete. Addrange definitely solves the problem. I have not tried virtualization yet. But i will do asap. I agree that getting column index every time sucks but it is some sort of stupid standart that i have to fulfil.
Sincerely,
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Me and a friend are starting a small project up and thought it could be a good idea to put the project in a shared folder using DropBox.
Has any one got any tips or ideas that could help us develop software as a team as I have had no training in this area of work!
Thanks 
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Wrong forum for this question.
My signature "sucks" today
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Yeh sorry about that I couldn't decide where to put it 
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I wouldn't look at using DropBox to accomplish this. It's not a version control system so you will have difficulty managing your code as it becomes bigger. A version control system allows you to download only the changes, so you can both be working on a project and, as long as you regularly refresh your codebase, you will be working on clean code. If you use dropbox, you have to manage this manually, and that will be a bar to success.
If you really want to accomplish this, take a look at hosting your code somewhere like sourceforge or codeplex, which provides version control access through a wide variety of mechanisms (such as Subversion).
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
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Thanks I will look into that right now !
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Hi, dear all,
I don't know if this is the right place to post my question.
When I compile .wse file to generate setup file, I got the following error:
"To deploy MS Jet 4.0 SP5, you must install MDAC2.6 to your development system.....".
In this case, which service pack of MDAC2.6 should I install?
There are "Microsoft Data Access Components 2.6 RTM" and "Microsoft Data Access Components (MDAC) 2.5 SDK
", which one should I install?
I use Window XP.
Thanks.
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This is not the right place to ask this question.
This is a .Net forum.
My signature "sucks" today
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hi
i want to create animated GIF from one picture with professional effect in my program
i think with component can do this
please help me
tanks.
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thank
NGif can create gif from multi picture but i want give one picture and component create special effect
for example the program Cool 3D can do this
now help me
modified on Monday, June 7, 2010 11:40 AM
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You're unlikely to get much help on this. We give help and advice on specific problems, but this one is too broad. What special effects? Halos? Lens flares? Starbursts?
reza_stb2002 wrote: now help me
I appreciate that English isn't your first language, so I'll point out that you just gave somebody a command rather than asking for their help.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
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So use Cool 3D[^].
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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you're right English isn't my native language so please excuse me
Cool 3D is a software not component .I wanna create gif in my programming so i need a component.
Please introduce this component
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I suggest you describe the animation effects you want to achieve, so other people can react. And/or you search the web (or just CodeProject) for related articles. I'm not familiar with Cool3D, I trust it does many things, and I can't guess what it is you want.
[ADDED]
I created this article[^] that may interest you; and I used NGif to create the GIF file that illustrates the animation.
[/ADDED]
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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OK
For example :
I giving to the my program a picture and my program must give me a gif that in it my picture explosive.
Now i need a component or library to do that
i need this to give sign board effect.
thank
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a simple Google action[^] leads to lots of articles, mostly on Adobe tools and Flash; GIMP is also present (it is an Open Source tool, so you can get its code).
Do your research!
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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thank you
please tell me how use this Open Source tool 
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I have created window application.
I want to create exe of this project which can be used only once for one installation.
Once it is installed it should not be used for another pc.
hi
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Nearly impossible and not a good idea.
You cannot prevent the installation from happening multiple times on multiple PC's unless each PC is connected to the Internet and the installer checks in with a licensing server to see if it's already been installed. If so, then the installer has to abort itself.
But, this is a bad idea. Why? Because what if the end user has to reinstall the software because of a system failure or some kind?? You just lost a customer by forcing them to jump through hoops to reinstall software they already had running.
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Identify the system with any unique identifier like IP Address or MAC address or anything and check for it in a database you have created(the program adds the identification to it everytime it SUCCESSFULLY installs)
But this is not a good idea 
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I m having a visualstudio 2008 project all debug folder files. The exe runs well in winxp and window7 32 bit but problem arises when i try to run in window7 64 bit. Plz help me how to resolve this issue.
Any comments are welcome
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