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Hi,
I'm now coding a tool to draw shapes like Visio.
I notice that in Visio there are some functions to combine 2 or more shapes like Union, Intersect, Combine...,
I don't know how to do it in C#. Currently I create a GraphicsPath, then assign some rect, ellipse to it, then create a Region and add the GraphicsPath to it.
I can then fill the region, but for the outline, I don't know how to draw.
And it's just similar to Union in Visio, what about other?
Thanks alot for your help.
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I'm finding some documents about 3 layers model. Could you please share me some ? And please don't lead me to "Google" 
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3 layers of what? Are you talking about database layer logic layer and UI layer?
Explain exactly what you are looking for?
Ahsan Ullah
Senior Software Engineer
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3 layer database programming!
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The explanation on three-tier models from MSDN;
http://msdn.microsoft.com/en-us/library/bb384398.aspx
A walk through on creating an N-tier application;
http://msdn.microsoft.com/en-us/library/bb384570.aspx
You might want to read up on the Wikipedia also 
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Thax so much for your reply 
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I cannot find a way to do that in C#... gave MemoryMappedFile a try, File is written to disk as well. I'm looking for a solution to write only to disk....
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You need to create a file on Hard drive?
Use methods from the built in classes of .net framework (File and Stream writer)
Ahsan Ullah
Senior Software Engineer
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Hi, thanks...
I need the file to be in memory and not on hard drive....
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Use a MemoryStream
Works the same like writing to disk.
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True, but I have to avoid the disk writings, that I cannot do...
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The MemoryStream won't write to a file. That is, until your memory is full and Windows starts swapping to disk.
You're gonna read/write a lot from several places in a single datastore? You've probably already tried it, but I still want to suggest the use of a database. There are some data-driven websites out there, serving lots o' people at once..
This site is one of them
--Edit--
Removed some typo's..
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What type of file?
And for what will it be used?
Have a look at
System.IO.MemoryStream
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I would like to place a pointer in a mapped memory file for all dll's share... It has to be in memmory for preformance rather then on disk...
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You would have to use the Windows API to use a Memory Mapped File and potentially unsafe code. However, I believe that the FileStream class uses the Memory Mapped File under the scenes.
Need software developed? Offering C# development all over the United States, ERL GLOBAL, Inc is the only call you will have to make.
Happiness in intelligent people is the rarest thing I know. -- Ernest Hemingway
Most of this sig is for Google, not ego.
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Hi,
We need to implement DVD/CD burning utility in C#.NET using IMAPIV2. We are able to write the data to the DVD/CD if the data (ISO) to be written is less than the DVD size.
But we have come across a scenario where we have to write multiple disks when data (ISO) to be written is bigger than the DVD size.
When the DVD gets full user should be asked to insert another disk and the burning should continue from where it stopped?
Could anyone give us the solution for this?
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yveerareddy wrote: When the DVD gets full user should be asked to insert another disk and the burning should continue from where it stopped?
The obvious answer is YES - what else could you do, abandon the burn and lose the rest of the data?
Bob
Ashfield Consultants Ltd
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Hi All
Im trying to create a Task Tab similar to the Microsoft Outlookd one. I have no idea how to do this and i would to know if some one can help me do this.
Thank You
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use any third party component. like Dotnetbar
Ahsan Ullah
Senior Software Engineer
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Hai all,
I have the problem in my chat application is that i need to detect the workstation is idle or not (i.e., It is locked or not). Fot this i have used SystemEvents.Sessionswitch and have handler for that but when the time of wiring this event it throws Exception is that "_ex = {"Unable to find an entry point named 'WTSRegisterSessionNotification' in DLL 'wtsapi32.dll'.":""}". I need help to solve this.
Thanks
Venkat.
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We're using some components from the DevComponents-suite, for Windows Forms (not the WPF-version). The initial loading takes way too long.
One can see the window being 'built' the first time. It's relative fast once it's loaded, but it's annoying to see a screen being built for five seconds. Is there anyone here that can confirm this behavior?
We're using version 7.0.0.4
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Have you tried the vendor's website? From memory they even have live chat.
Bob
Ashfield Consultants Ltd
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Thanks! I completely overlooked the link, customer support is looking into the issue right now. They pointed me to an update, going to try that right now.
Great support over there
(..and here too, of course)
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Success at last
Bob
Ashfield Consultants Ltd
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