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The list items aren't actually read-in in their entirety, but the scroll bar is adjusted accordingly. This is nice for large lists or for lists that grab their items from a slow data source.
See my reply to the parent post for more information if you're interested.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles]
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You might try searching google for virtual ListViews. IIRC, there might be one or two mentioned here on CodeProject.
As far as binding DataSets (and keep in mind that bindable controls in the .NET BCL actually bind against IList and/or IListSource, not just DataSets), there's really isn't any support for this in the .NET BCL. You must add this yourself. How complex you make it is a question that you must asked based on your requirements. I've done simple one-way "binding", but it's not true binding.
The ListView in .NET 2.0 will contain support for virtual lists (among other things) and, IIRC, support for data-binding, although you might find a better alternative based on your requirements from GridView.
You can find more information about these components on http://lab.msdn.microsoft.com/library[^] and from various articles you can find on http://msdn.microsoft.com[^].
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles]
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I want to change the color of listview control cell based on condition.
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hi all
seems that i have a real problem with crystal reports i wanna pass a parameter from a text box to the crystal report and i dont know how i tried reading in the msdn but in vain  plz help me asap its really urgent for me i need to know wat to do exactly
thanx
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Have a read of this[^]
It should get you started and help you look-up the correct sections on MSDN.
Michael
CP Blog [^]
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Hi,
For programming pocketpc(.net compact framework) in C#, do I need to
buy the whole Visual studio .net package or just buy the C#.net package ?
There is a great price difference between the two. Have anyone just buy
C#.net and able to use it to program smart device in .net CF ?
Thanks
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C# .net box states that "build device-based applications and solutions" is not part of this
So, in short you need to buy VS.NET to do pocket programming
Sanjay Sansanwal
www.sansanwal.com
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Is there a way to kill an existing process in C# using the Process class ? I've only been able to find literature that allows you to kill a process that was created with the Process class. How would I go about killing all the instances of notepad.exe running on my machine using C# ?
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If you look at the member documentation in the .NET Framework SDK, several methods should be obvious, like GetProcessByName:
Process[] procs = Process.GetProcessesByName("notepad");
if (procs != null)
foreach (Process proc in procs)
proc.Kill();Please note it's not always such a good idea to kill processes, though. First try to close them gracefully using Process.CloseMainWindow followed by Process.Close. If that doesn't work or if you really mean to kill processes, then use Process.Kill.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles]
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check
http://www.codeproject.com/csharp/cskillapp.asp
Sanjay Sansanwal
www.sansanwal.com
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Colin Angus Mackay wrote:
Won't anyone think of the clicketies!
Haven't you started that fund yet? SaveTheClickities.org? 
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I am just doing a bit of load testing of a web service. I wrote several test cases in NUNIT to fire off.
One test case creates several (5) threads which all start close to each other and call the web service several times. For some reason, usually only one (sometimes 2) of the threads complete, the others seem to hang. It is also never the same thread that completes.
Does anyone have a clue why this may be the case?
tia
stephan
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Maybe the Web Service isn't mutli-threaded...
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Wininet.dll limits connections to an HTTP 1.0 server to 4 and to an HTTP 1.1 server to 2. See http://support.microsoft.com/default.aspx?scid=kb;en-us;320721[^] for details.
Similarily, the ServierPointManager is configured to, by default, limit connections to a particular server to 2. You can change this by setting ServicePointManager.DefaultConnectionLimit to something higher, or use HttpWebRequest.ServicePoint to get the ServicePoint for a particular web address and set ServicePoint.ConnectionLimit to something higher than 2. This should apply to all connections made to a particular server.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles]
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Maybe I am missing it - but I am not connecting from IE.
This is a class dll that is running under nunit doing web service calls. it does so by creating multiple threads that all hit the same web service.
Basically some threads simply stop and never return;
Stephan
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A WebService request is nothing but a glorified page request over HTTP or HTTPS. So, yes, your using the very same WinInet.dll that IE uses to execute and download its page requests and everything in that article applies to your problem.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Actually, the .NET BCL doesn't use wininet.dll. That's why I explained about the ServicePoint and ServicePointManager. It's the same situation under different APIs, but the KB article explains the "why" a little better than in the .NET documentation (which doesn't even state what the default connection limit is initially set to - you have to dig into the IL - which you know I love - to find that).
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles]
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In .NET HTTP requests are made via HttpWebRequest (well, typically). This uses ServicePoints and a ServiePointManager to manage connections to servers.
Why I explained this with wininet.dll and gave you a link is because it contains more information about why. The .NET Framework SDK documentation isn't clear on a default, so you have to dig into the IL intructions and type metadata in the assembly to know this information (which I do all the time).
A web service proxy (client) uses HttpWebRequest internally and thus is prone to the same conditions that I described in my post.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles]
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Thanks for the info. I will check this out. At least it appears the problem is with my test code and not with the app I was testing.
Stephan
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This did indeed fix the problem. However it does raise a question. Currently, when the number of threads trying to open simulatneous connections to the service exceed the limit, these threads go into WaitSleepJoin state. So far so good. But when the other threads close their connections, shouldn't these threads be activated by the system? At the moment the threads stay in their suspended state until they get killed by the main process (if they are background threads).
Is this a bug or a feature?
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Looks like they're not being signals, but without digging into the IL (and sorry to say, but it's lunch time here  ) I can't know what the problem is for sure. So I encourage you to do it. If you don't know IL and how t use ildasm.exe in the SDK, it's a great learning experience and can teach you much more about .NET than just reading docs or books.
It's likely there's a bug, but don't consider it as such until you've investigated it. If I get a chance later I will look into it.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles]
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I have started digging around a bit starting with ServicePoint and SoapRequest. However it looks like there is quite some way to go until I'd come to the point where the threads actually are being put to sleep. I suspect it would happen somewhere in the HTTPRequest class. you might be able to shortcut this as to where in the .NET space the dispatching (and supposedly putting to sleep) is likely to occur.
Unfortunately there is this thing called work getting in the way.
Cheers
Stephan
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Using the WROX press edition of Beginning asp.net databases using C#.
My system is XP pro and i have IIS installed.i have followed the instructions in the text book to obtain and install MSDE, the Microsoft SQL server desktop engine installed no prob, and so to the samples.
In chapter 12 of this book there is a working example of a auction site, which i would like to copy and re-write myself.
I downloaded the example from the wrox site, and followed the instructions to setup this auction site. However i am given the error msg from the log file of the setup
Configuarion complete with errors view setup.log
which then gives this:
25/08/2004 16:40:57: : Configuration started
25/08/2004 16:40:57: [Pass] : Virtual root deleted: bid
25/08/2004 16:40:57: [Pass] : Virtual root added at bid
25/08/2004 16:40:57: [Fail] : Failure installing database 'bid' : Object reference not set to an instance of an object.
25/08/2004 16:40:57: : Configuration complete
when i try to write an asp.net web application using visual studio, i also get the error:
The web server reported the following error when attempting to create or open the web project located at the following URL: "http://localhost/webapplication1. "http://1.1 500 internal server error
http://localhost/webapplication1
i also have problems in visual studio gettin access to the northwind database.
If you can help me, gimme a email pls. i am sure i am just missing one piece of the jigsaw, then i can make my asp.net web page work
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