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Re: Thread safe issue in string operation

led mike5-Jan-09 5:10

led mike

5-Jan-09 5:10

moon_stick wrote:
Did you not even look at the link I sent you?!

Are you not familiar with George? Yes, he is an odd one, although not sure "odd" does him justice. I believe he has some crazy job that pays him by the number of internet forum posts he makes.

moon_stick wrote:
I'm sure I should be flattered but given that Microsoft wrote the class, I'd probably believe their documentation over anything I have to say.

Do not expect George to understand even the simplest things from any documentation. Oh and, good luck.

led mike

Re: Thread safe issue in string operation

moon_stick5-Jan-09 5:27

moon_stick

5-Jan-09 5:27

led mike wrote:
Are you not familiar with George?

That was my first encounter - I think I get the idea already...!! Laugh | :laugh:

It definitely isn't definatley

Re: Thread safe issue in string operation

George_George5-Jan-09 22:45

George_George

5-Jan-09 22:45

I am asking why but you are talking about conclusion. Here is why we have mis-understanding. Smile | :)

You can read here.

http://www.codeproject.com/script/Forums/View.aspx?fid=1649&msg=2867111[^]

regards,
George

Re: Thread safe issue in string operation

George_George5-Jan-09 22:44

George_George

5-Jan-09 22:44

Any comments to,

http://www.codeproject.com/script/Forums/View.aspx?fid=1649&msg=2867111[^]

Smile | :)

regards,
George

Re: Thread safe issue in string operation

Abhijit Jana5-Jan-09 2:40

Abhijit Jana

5-Jan-09 2:40

Check Thread Safe Section[^]

cheers,
Abhijit

Re: Thread safe issue in string operation

George_George5-Jan-09 3:30

George_George

5-Jan-09 3:30

Thanks Abhijit,

It talks about the general thread safety rule, not about my specific question about thread safety for string. Smile | :)

Any new ideas or comments?

regards,
George

Re: Thread safe issue in string operation

Abhijit Jana5-Jan-09 4:08

Abhijit Jana

5-Jan-09 4:08

George_George wrote:
It talks about the general thread safety rule

Yes, That true. but it could also clear your doubts . Any way hope now your have got your answer.

cheers,
Abhijit

Re: Thread safe issue in string operation

George_George5-Jan-09 22:41

George_George

5-Jan-09 22:41

Thanks Abhijit,

I think all string operations are thread-safe. Since when we modify a string, a new string instance will be created. Do you think it is correct? Smile | :)

regards,
George

Re: Thread safe issue in string operation

Abhijit Jana6-Jan-09 0:55

Abhijit Jana

6-Jan-09 0:55

George_George wrote:
Do you think it is correct?

Yes !!!

cheers,
Abhijit
CodeProject.Com MVP

Re: Thread safe issue in string operation

George_George10-Jan-09 2:43

George_George

10-Jan-09 2:43

Thanks Abhijit MVP!

regards,
George

Re: Thread safe issue in string operation

J4amieC5-Jan-09 2:47

J4amieC

5-Jan-09 2:47

Thats 2 more "read the docs" answers for you. That makes your tally, what, like a couple of thousand now?

Re: Thread safe issue in string operation

George_George5-Jan-09 3:28

George_George

5-Jan-09 3:28

Thanks J4amieC,

After some reading the investigation, I think my understanding is correct. Do you agree? Smile | :)

regards,
George

Re: Thread safe issue in string operation

J4amieC5-Jan-09 3:33

J4amieC

5-Jan-09 3:33

Yes, and no. Mostly yes, but partially no.

Re: Thread safe issue in string operation

George_George5-Jan-09 3:40

George_George

5-Jan-09 3:40

More details please? Smile | :)

regards,
George

Re: Thread safe issue in string operation

J4amieC5-Jan-09 4:17

J4amieC

5-Jan-09 4:17

no!

Re: Thread safe issue in string operation

George_George5-Jan-09 22:43

George_George

5-Jan-09 22:43

I think the reason why all methods of string class are thread safe is because string is immutable, i.e. when the string is modified, a new instance is created. Agree or?

regards,
George

Re: Thread safe issue in string operation

Jon Rista6-Jan-09 11:53

Jon Rista

6-Jan-09 11:53

OMG dude...you already have the friggin answer.

You've been told the answer is correct several times already.
Your request for agreement has been fulfilled already.
WHAT MORE CAN YOU POSSIBLY EXPECT?

WTF | :WTF:

Re: Thread safe issue in string operation

George_George10-Jan-09 2:44

George_George

10-Jan-09 2:44

Thanks Jon!

Sorry I missed some emails. I am relying on Yahoo! email box to notify me the answers. Smile | :)

regards,
George

Remove items from property grid

Naveed7275-Jan-09 2:07

Naveed727

5-Jan-09 2:07

Hello to all

I have problem with property grid. I am adding label object to property grid and want to show some specific property of label. But propertygrid shows all properties.

Please help me out how can i skip some property of label.

Thanks in advance.

Re: Remove items from property grid

Dragonfly_Lee5-Jan-09 4:01

Dragonfly_Lee

5-Jan-09 4:01

I am afraid we can not do this for defined control, such as Textbox. But we can set the visible property for custom control(e.g. MyTextbox) via Browserable attribute. If we want to expose some certain property from Textbox, we can hold the reference in MyTextbox object. For example:

class MyTextbox
{
TextBox textbox;

public string Text
{
get
{
return this.textbox.Text;
}
set
{
this.textbox.Text = value;
}

}
}

Hope this will help you ~

Tan Li

I Love KongFu~

How to detect .net Framework 3.5 is installed or available

Seraph_summer5-Jan-09 1:32

Seraph_summer

5-Jan-09 1:32

It is known that some functions are supported by .net Framework 3.5.
therefore, how to detect automatically that .net framework 3.5 is already installed on the current computer?
in order to give the message to the user when the user try to use some functions only supported by .net framework 3.5?
thanks.

Re: How to detect .net Framework 3.5 is installed or available

Pete O'Hanlon5-Jan-09 1:37

Pete O'Hanlon

5-Jan-09 1:37

That doesn't give the user a good experience. I'd hate to have an application tell me "You can't use feature x because you don't have MyWizzyFramework 3.91 installed." Put the .NET Framework as a required resource in your setup project so that it is installed up front (if they don't already have it installed).

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Re: How to detect .net Framework 3.5 is installed or available

Seraph_summer5-Jan-09 1:44

Seraph_summer

5-Jan-09 1:44

thanks, you are right, I agree with you completely.
but I provide two choices to the user with similar functions, but the better one is only supported by .net Framework 3.5.
I just want my application more flexible to the user, he can select which function he want to use.

Re: How to detect .net Framework 3.5 is installed or available

Member 44703545-Jan-09 2:16

Member 4470354

5-Jan-09 2:16

The following code will give you the list of available versions.

const string regLocation = "SOFTWARE\\Microsoft\\NET Framework Setup\\NDP";
RegistryKey masterKey = Registry.LocalMachine.OpenSubKey(regLocation);
RegistryKey tempKey;
string[] SubKeyNames = masterKey.GetSubKeyNames();
for( int i = 0 ; i < SubKeyNames.Length ; i++ )
{tempKey = Registry.LocalMachine.OpenSubKey(regLocation + "\\" + SubKeyNames[ i ]);
MessageBox.Show(SubKeyNames[ i ]);
MessageBox.Show("\tVersion = {0}", tempKey.GetValue("Version").ToString());
}

Or you can check the currently user version using the following.

MessageBox.Show(Environment.Version.ToString());

Re: How to detect .net Framework 3.5 is installed or available

Jon Rista6-Jan-09 14:53

Jon Rista

6-Jan-09 14:53

Environment.Version always returns the CLR version, not the current framework version. For .NET 2.0, 3.0, and 3.5, Environment.Version returns 2.0.50727.3053, since 3.0 and 3.5 are just API extensions to 2.0.

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