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sorry, have disabled this (g.Clear(Color.Transparent);) functions.
Thanks "William Winner" for guiding me....
modified on Friday, May 21, 2010 3:00 AM
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How can I make my service to start certain application, so user'll be able to use it?
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Process.Start can start applications. But a service starting applications doesn't looks good. Services are not meant for this.
Best wishes,
Navaneeth
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unfortunately if I use Process.Start applications run without any interface 
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If I'm not mistaken, and I could be, you have to check the "Allow service to interact with desktop" option under the "Log On" tab of the service properties.
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Sure, but I'd like to start applications on the users desktop 
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Services run under a non-visible desktop. What you want to do shouldn't be done at all. The "Allow the service to interact with Desktop..." option is for the service to put up a small user interface, like notifications or options dialogs. It is NOT going to allow the service to launch an application on the users Desktop. Any process launched by the service will inherit the session and desktop of the process that launched it, i.e.: your service.
There's just about never a good reason to do this and I suspect you're approaching your design all wrong.
For instance, what happens when your service needs to launch the UI app and there's noone logged in?
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A windows service should not be used to start applications for users. However, if yu really want to do this, the service should wait for a user to log in, and then launch the app. You'll have to turn on "Interacts with desktop" in the service.
.45 ACP - because shooting twice is just silly
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"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
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That is not a good idea -- rethink the problem.
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Thank you all! I realize that it was bad idea and switch to autorun application without UI.
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Is there any way that i can make clone of hard drive c to mu external one by using c# code?
can anyone help me with guideline or opensource software which has the desirable method.
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Ummm, maybe a something like, File.Copy ? 
I know the language. I've read a book. - _Madmatt
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I wouldn't attempt it with managed code.
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I'm asking how to do it not should I do it.
can anyone please provide me with any clue
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Beside using File.Copy (as mentioned) use methods like Directory.GetDirectories and Directory.GetFiles. Maybe recursive programming will help you out as well..
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But if no one thinks you should, no one will tell you how.
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You can try xcopy-tool./[^]
Thanks
Md. Marufuzzaman
I will not say I have failed 1000 times; I will say that I have discovered 1000 ways that can cause failure – Thomas Edison.
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Clonning a partition is not an easy task, and by far an easy one to do with managed code.
If you want to do a full clone then your aim is to understand partition descriptors, file and folder descriptors and all the stuff that goes behind a file system when it acceses a partition. Why it is necessary to understand them, simple you can't just rely on the file system of an os and there are lots of existing partition types.
If you want just to copy all the files from a partition to another you must keep in mind that critical files opened by the operating system and/or applications are not readeable (nor writable) unless they are closed (or opened under special conditions).
ps: partition != hard drive 
I have no smart signature yet...
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You're not going to do it in managed code. In the simplest form you can do this, it requires that Windows isn't running since there will be plenty of areas of the disk that will be locked and unavailable to even be read.
I wrote an app to do this way back in 1991, written in C and running from a DOS boot floppy. I was duplicating hard drives for the mass production of "laptop" computers for Prudential Insurance. Every machine has a standard DOS/Windows/software load that had to be on about 450 machines.
For those keeping score, Ghost came out 2 years later in 1993. Yeah, there's my  moment! ...had I only known there was a market...
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I have a treeview where many treenodes belonging to different parent nodes may represent the same object, so if a user updates a text for such node, it should also trigger an update of text for all other nodes representing the same object. For instance if I have nodes representing school classes (math, english...) each class node has student nodes with student name as text, so numerous classes can contain the nodes with same student name. If I change students name under one parent, it should update it under the rest. I would assign the student object to nodes tag, but how would I trigger a text update?
thanks
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There are a number of ways.
Ideally, the student class has a ToString or similar method that is used to format the text for the node.
Then you can enumerate the nodes, updating the text. You can probably make that quicker by checking to see if it's the updated record. And you should probably do that on a thread.
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I do not have a collection of other nodes that need to be updated, so cannot enumerate. This is a form treenode, not web, so there is no updateOnDemand property. I was thinking of doing this on text update - calling tag object method that in turn calls treenode's method to update the text. this way, a single node text update would trigger text update for all nodes tagging the same object. Is there a better way?
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xilefxilef wrote: I do not have a collection of other nodes
The tree has a collection of all the nodes -- enumerate them, updating as necessary.
You can use memory rather than CPU to maintain your own collections, but I'd start with the simple way first.
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Right, it has all nodes, but this way I need to enumerate through all of them and find the ones I want to update. I was talking about an event that would trigger an update without having to enumerate through the whole tree. I would override TreeNode.Text property to point to tagged object's text property, but strings are immutable and if I change tagged object's text property, it would do nothing to nodes text.
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That would be good if it can be done, but I don't know that it can (or can't) be done. I was thinking of having the student class have an OnChanged event (or something) that a specialized TreeNode could hook onto.
Failing that, you could have a class that associates a student with a bunch of nodes.
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