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Your code can easily become a target for SQL injection attacks. To avoid it, remove the string concatenation and use parametrized queries or stored procedures.
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Is there any one who know Unibasic/pickbasic programming language ?
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Lots of people. My wife does, for one. Not sure how this is .NET related though.
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There is no separate discussion link for Unibasic and we can connect unibasic/unidata using redback server with .net easily .So many unibasic developers know .net as well
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It's not a .NET question. Just because they can connect together doesn't mean that it has anything to do with it.
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Hello,
My program have two threads using a byte list.
Every time some of them manipulate the list i use the lock statment:
lock(byte_list)
{
.Do some work on the byte_list
}
But it seems that the synchronization doesnt work i get strange thigs it looks like both threads work simultaneously on the list.
Any one have an idea whats the problem?
Thanks.
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Try using a separate object for the lock
private static object lockObj = new object();
lock(lockObj)
{
... Do some work on the byte_list
}
Also, format you code snippets when posting
No comment
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I do think it is good practice to have a seperate lock object but i don't see why it wouldn't work on the bytearray itself. I would like to know if there is a difference though.
All i can think of is that the byte array is locked in one place but marrely used without a lock in another.
Alternetively he could be adressing a ref to the same array.... And as such locking two seperate objects.
No doubt he'll get back and tell what was wrong.
Cheers, AT
Cogito ergo sum
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Addy Tas wrote: No doubt he'll get back and tell what was wrong.
Don't hold your breath on that.
No comment
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Still holding my breath... starting to turn blue
Cheers, AT
Cogito ergo sum
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Hi,
I have a C# Forms application that hosts an ActivX control. I added a new method to the ActivX control called “GetRange()”. I then deleted the control from the Form, deleted it from the Toolbox and deleted the two interop dll references. I then re added the control. All works fine in debug build but in release mode I get an error...
“AxChart_v2Lib.AxChart_v2' does not contain a definition for 'GetRange' and no extension method 'GetRange' accepting a first argument of type 'AxChart_v2Lib.AxChart_v2' could be found (are you missing a using directive or an assembly reference?)”.
I have noticed that of two interop dll references only one has the new method in it, AxChart_v2Lib does not contain the new method, however Chart_v2Lib does.
Any ideas?
Thanks.
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Looks like you forgot to rebuild one of your libraries with the updated source.
Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman
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Hi Richard,
Thanks for the reply.
What libraries should I be building?
Thanks.
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I fixed it by deleting the obj folder from my C# project.
Probably only needed to delete the interop dll's from that folder but I deleted the whole folder.
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I have a requirement where I have to playback .ts files.
I used a simple Media Element to implement a media player. When I played the file in .net 4.0, playback was scrambled.
However, on changing platform to .net 3.0, file plays perfectly fine. Even in .net 3.5 it played fine.
Can anyone advice about the cause and solution for the issue.
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revengeoffallen wrote: I used a simple Media Element
"Simple"?
You mean "easy to use"?
revengeoffallen wrote: Can anyone advice about the cause and solution for the issue.
The Framework doesn't care much which decoder is used. It's probably using different versions of the Media Player libraries, and possibly even different decoders. You could start with installing SysInternals' Process Explorer[^] and compare the versions of the libraries loaded and work from there.
Bastard Programmer from Hell
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Hi
I've installed Visual studio 2005 but the user ASPNET hasn't been created. I need this user to configure reporting services.
Note that I installed Visual studio 2005 first followed by SQL Server 2005..
Any help would be appreciated.
Cheers
Berba
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thx for the link...got some maintenance to do...
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Hi all,
I hope I put this question in a right category.
I have a base class (let's call MyWindow) in C# which is based from UserControl.
MyWindow is used as a base class in other projects of the same solution, and the projects are written in different languages, some C# and some C++(CLI).
In C#, it's working properly. The Load event of the inheriting control is fired when the control is created in our application in run-time.
But for CLI/C++ projects, the Load event of the inheriting control is never fired.
Can you please give me some information to settle this?
Thanks for your help and time,
Zaw Min Tun
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Have you checked the CLR setting in the projects config?
Cogito ergo sum
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Dear Addy Tas,
Thanks for your reply.
Yes, CLR setting is checked.
But now I found out that it's happening only in some CLI/C++ projects. In other CLI/C++ projects, the load event is fired.
So now I'm trying to pin-point what's wrong with those projects, but still can't get a clue though I spent so many days on it. The projects are actually UserControl projects and we have another function to call such as Init() after creating the control. If I can't pin-point why it's happening, I'm thinking I will move the code lines from the Load-event to that Init() function.
Regards,
Zaw Min Tun
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Hi,
An easy way to find out where it goes wrong is to add console.writeline as spcific places and see if it got there. Than slowly work your way to the line that is giving you problems. Either you find out why you have the issue or just move it to the init method.
Good luck, AT
Cogito ergo sum
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What is Difference b/w layered and tier architecture. Describe related to .net architecture.
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Although you may see these two terms used to refer to each other, there is a real difference between tiered an layered components. Tiered components indicates that there is a physical separation, such as in different assemblies on the same or different servers. Layered architecture refers to logically separating components, so (for instance) you have a data layer, business layer and data access layer. This does not mean that you need to create a separate assembly for layered architecture (although this is common - and means that it works closely with tiered architecture). So, as you can see, tiered architecture refers to the physical separation and the layered architecture refers to the logical separation as a result of a design phase.
In practical terms, tiered architecture is common in enterprise style developments, and this may not suit a small utility application developed at home - but a layered architecture could help here as well.
I have to say that this sounds like an interview question to me - I leave it to you to actually understand what I just typed in, and figure out how it relates to .NET. At least that way, it will demonstrate that you have comprehended the differences.
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