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Hi,
Is there any benifit to create a string as shown below.
string strTemp = new string(new char[21]);
sttTemp = string.Format("{0}", "test");
Thanks,
Chary.
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No.
50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!
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No, in fact it's worse.
Strings are immutable. This means once they are created they can't be changed.
The first line creates an empty string.
The second line creates a new string from your two literals, and assigns the variable to this new string.
If you're very lucky, the compiler might optimise the extra creation out as it's not used, but even then your left back where you started with just 1 creation.
Just do it the normal way.
String myString = "test";
Simon
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System.String is immutable, which means once they get created, they cannot change. Every new assignment results in a new string being created and the reference to the new string object assigned to the variable.
Those constructors exist to assist you in creating strings from already created char arrays, etc.
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As the others have said, there is no benefit - in fact yours is about as bad as it can get, as it creates up to 4 strings:
1) new string(new char[21])
2) "{0}"
3) "test"
4) strTemp = ...
It may produce four if it doesn't "spot" that string.Format("{0}", "test") is the same as "test". Optimisation will almost certainly reduce this to one, but it makes your code look like it is written by a beginner, whether you are one or not!
No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.
This message is made of fully recyclable Zeros and Ones
"Rumour has it that if you play Microsoft CDs backwards you will hear Satanic messages.Worse still, is that if you play them forwards they will install Windows"
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Yes, but not if you're just going to throw it away in the next line.
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Data Source=SERVER\SSGSQL;Initial Catalog=myDatabase;User Id=sa;Password=abc123;
I am trying to install SQL SErver 2008 Express on WIndows Server 2008 64-bit. Installation was successfull and i am able to use the sql sever on the server with no issuie but when connecting from another machine using the above connection string I get this error though I enabled the TCP/IP and Name Pipes and the login method is Mixed and Firewall is accepting 1433 port:!
TITLE: Connect to Server
------------------------------
Cannot connect to SERVER\SSGSQL.
------------------------------
ADDITIONAL INFORMATION:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 1326)
For help, click: http:
------------------------------
BUTTONS:
OK
------------------------------
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just one note..
I have disabled the firework and now i am able to connect from the client to the remote through sql management studio..
but where is the issue if the port 1433 and the sqlserv exe is already added?
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Hello!
I'd like to create little system for mobile phones which can recognize speech. There are two ways to do it, first is to have speech recognition on mobile phone (however I've got difficulties with using PocketSphinx, if you'd like me to, I can explain what exactly), the other is to have speech recognition on server and just have mobile phone connecting to that server with the use of Skype. The communication between devices and applications would be as follows: Skype on mobile phone calls Skype on server -> Skype on server redirects the speech (with the use of server application) to speech recognition engine Sphinx4 -> Sphinx4 recognizes the speech and answers to Skype (do I need to do it through the server application?). Recently I've been working on creating acoustic model for Sphinx4.
I have already found some good code which I can use in my application: http://forum.skype.com/index.php?showtopic=260361&st=0&p=1158301&#entry1158301 . However I don't have the experience in writing server applications. (I've got some experience in C++, Free Pascal and Visual Basic but I'm rather newbie in C#). Can you suggest me how to begin with writing this server application? I would appreciate it if you can give me some useful materials to read, tutorials or advices.
Greetings!
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Hi folks...
hope someone can help. I created a simple UserControl in a C# Project (VS9) that basically consists of a Label placed on that Usercontrol.
The following happens:
1) place the Usercontrol "Label" via designer on another UserControl "Parent"
2) change the Fontsize of "Label" to another value (e.g. from 9,25 to 14,75)
3) see the "Label" Control is relocated from original position to a new position on "Parent".
It seems to me that the control is relocated due to some scaling issues but I can't figure out what exactly is the problem. I am sure it is no big thing, I need the Usercontrol "Label" to stay in place instead of beeing relocated automatically in design view. Any ideas?
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Check out the "Anchor" property.
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I already did. Does not change behaviour.
I also have set "Autoscalemode" to none everywhere I could find it... still same behaviour. Running out of options...
Another funny thing is that the relocation of the "Label" usercontrol is done only once (according to the size I enter, the Location of the usercontrol "Label" will be set more down and right on screen if the Fontsize is larger). After it is done I can change fontsizes just as I want (even 100f)... the "Label" Usercontrol will no more be relocated by designer.
So this behaviour just shows if placing a new "Label" usercontrol on the "Parent" usercontrol and then changing the fontsize of the "Label" uctl. Strange in deed.
modified on Wednesday, November 25, 2009 9:58 AM
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I have 1K tag. I have data of 1433 byte to be stored in the tag. Can any body help me for some compression technique to compress the number of bytes for the same information.
Thank You
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It depends on your data. What is your data? More importantly, what is the entropy of your data?
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harold aptroot wrote: entropy
Big word alert!
Panic, Chaos, Destruction.
My work here is done.
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Fortunately I know what it is, does that mean I'm allowed to use it?
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harold aptroot wrote: I know what it is, does that mean I'm allowed to use it?
If you can use entropy, please do so, the world would be much better of with an entropy reduction.
Luc Pattyn [Forum Guidelines] [My Articles]
I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages
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A hardware engineer I used to work with suggested a data compression technique that "removed all the zero bits, as they don't mean anything anyway". I wish it would have worked...
No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.
This message is made of fully recyclable Zeros and Ones
"Rumour has it that if you play Microsoft CDs backwards you will hear Satanic messages.Worse still, is that if you play them forwards they will install Windows"
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Good one
He (she?) should have a chat with jules Gilbert (you know, the persistent "magic compression" guy who refuses to ever let his technique be put to the test) on comp.compression 
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Ok, that's a very ineffective way (Deflate is not bad, but the implementation doesn't compress that much at all)
If you want better results, you can look at SharpZipLib[^]
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It is filling my requirements. Happy to have this link. You guys are very good providing the help for free. Please inform me if I can do something for you.
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J imran wrote: Please inform me if I can do something for you.
Help people who asks questions.
Panic, Chaos, Destruction.
My work here is done.
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![Rose | [Rose]](https://codeproject.freetls.fastly.net/script/Forums/Images/rose.gif)
thank you.
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