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i have downloaded your project mp3 player.
it works great. i want to develop vcd cutter in your mp3 player. kindly help me from where i do start. waiting for the reply.
thanks
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You start by contacting the person who wrote the project, there is a comment section at the bottom. This is a general C# forum, we have no idea which project you downloaded.
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you should go there from where you have download project and then ask question by using New Message at the Comment and Discussions.
take a look at the bottom you will find it easily.
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HI,
I want to know that how to count the number of messages in sim memory and how to get the index of last message stored in memory using c#.I dont have any idea how to do this. I am using At command for "AT+CMGR=index" for reading sms. But i dont know how to get the index number of last message stored in memory.
Thanks in advance.
Regards,
Aeman
modified on Saturday, April 2, 2011 9:23 AM
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In application, Ajax response is large size of string(around 1 mb file read and thas data return to Ajax request ). we want reduced that response data so i planned to compress the data after getting response decompress and show it to browser ...
Compress and decompress is possible to do... want to use any third party files...
sever side C# and client using jquery..
Thanks
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Why aren't you asking this in the web development forum?
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
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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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Why do you keep asking the same question?
I know the language. I've read a book. - _Madmatt
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App-domain, According to my understanding is, like in the presentation layer, I am giving memory to at dll at run-time, on completion of operation, this is segregated from the presentation layer ?
Please correct if there is any mistake.
modified on Thursday, March 31, 2011 7:13 AM
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Hmm. Slightly confused by what you're saying. These are totally different things.
Your presentation layer is typically your GUI or other type of user-interface.
An AppDomain is conceptually like a mini-process (Window's process) that can be hosted with others in a single Process, for the benefit of performance/scalability etc. whilst providing some isolation between other domains.
Regards,
Rob Philpott.
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Hello,
I'm building a plugin system for a hardware communicator system.
So a plugin is actually a device communicator and the core program has many plugins that communicate with devices and write something to the database.
Now, I have solved many things, I have made a DevicePlugin interface and have dynamically loaded and instantiated the plugins, and it works. The only thing that is bothering me is plugin crashes, for some reasons a plugin can sometimes crash (throw an unexpected exception) and a single plugin can crash my entire system.
So my question is is there some way to put the entire plugin assembly intoa try catch so when plugin crashes the core system remains intact.
Any help greatly appreciated.
Thanks!
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Load each plugin into a separate AppDomain and set the AppDomain's UnhandledException handler.
Also, unless plugins are starting threads that cause crashes, you can simply wrap a try/catch around the point where you call into the plugin. But if they're talking to devices they probably do.
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Thank you I will try that.
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To second what Bob says, AppDomains are great for plug-in architectures. As well as providing robust protection of the process if something goes wrong, you can also unload them and that's the only way to 'unplug' a plug-in (craziness aside).
Regards,
Rob Philpott.
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Hello,
I have an annoying issue where I could use some advice.
I created a small windows service which uses at standard time-intervals different COM components.
Every time the COM components are instantiated in their own thread, the required methods are invoked and the COM components are subsequently released and their threads end, the main thread can then evaluate the result of each COM component's action.
For some COM components(third party) a problem occurs from time to time and the instantiation of the COM object blocks the thread. Even calling an Abort on these threads is not possible because doing that causes the main-thread to block.
The COM components are simply instantiated using:
<br />
System.Activator.CreateInstance(comType);
The comType is gotten using:
<br />
Type comType = Type.GetTypeFromProgID(sComName);
If this blocking happens frequently, the memory of the process increases steadily due to all the blocked threads that I can't stop.
So what I need is an ability to use the COM components, and still be able to clean up the threads in case such a block occurs. Does anyone have any ideas how I could accomplish that?
Regards,
Davy
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GDavy wrote: Does anyone have any ideas how I could accomplish that?
An ugly workaround, but you could consider putting them in a separate app and using IPC to communicate with the COM-component. Once the app seems to hang, you kill it 
I are Troll 
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After much painfull and brain numbing reading I still don't understand why its not possible to cast between Action<T> and Action<object>, can anyone please explain this in small words (I currently have the brain of a 5 year old).
There was a poem written along time ago by a person dying with lots of pain, he called it 'Brother Pain', I'm about to write a poem called 'Brother Cannot implicitly convert type 'System.Action<T>' to 'System.Action<object>''
An example:
public class Base
{
public Func<object> OnComplete {get;set;}
public Base(Func<object> onComplete)
{
OnComplete = onComplete;
}
}
public class GenericBase<T> : Base
{
public GenericBase(Func<T> onComplete) : base(onComplete)
{
OnComplete = onComplete;
}
}
____________________________________________________________
Be brave little warrior, be VERY brave
modified on Thursday, March 31, 2011 3:22 AM
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It says 'implicitly', so have you tried an explicit cast?
public class GenericBase<T> : Base
{
public GenericBase(Func<T> onComplete) : base((Func<object>)onComplete)
{
OnComplete = (Func<object>)onComplete;
}
}
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Did it build on your side? On my side I get 'Cannot convert type 'System.Func<T>' to 'System.Func<object>''
At least now my build error message is different
____________________________________________________________
Be brave little warrior, be VERY brave
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Adriaan Davel wrote: After much painfull and brain numbing reading I still don't understand why its not possible to cast between Action<T> and Action<object>,
Because T might be an integer, and that's not compatible with object.
I are Troll
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Not sure I understand what you mean, this object x = 1; works...
____________________________________________________________
Be brave little warrior, be VERY brave
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Your example would still be an object, allocated on the heap. To use x as an integer would still need to be converted (int)x = ?
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Adriaan Davel wrote: this object x = 1; works
That wraps your value-type with a reference-type; your number is actually stored in the object, but a number is not an object itself.
I are Troll
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Ok, but in non-generic syntax this works:
private void Button_Click(object sender, RoutedEventArgs e)
{
Calc(1);
}
private void Calc(object val)
{
}
but in generic syntax it doesn't?
____________________________________________________________
Be brave little warrior, be VERY brave
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"Shouldn't"; there's a difference between simple types (anything that's a value) and classes, that's why there's a "where T:class" constraint
I are Troll
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I know that, and object allows me to pass either and respond accordingly inside the method to which I passed the parameter
____________________________________________________________
Be brave little warrior, be VERY brave
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