Re: Top C#/.Net sites - C# Discussion Boards

originSH30-Jul-07 22:04

30-Jul-07 22:04

It's not called 'friend' in C# it's 'internal'.

'internal' means any class in the same assembly can access it.
'protected' means any class that any inheriting class can access it.
'internal protected' (or 'protected internal' Wink | ;)

) means that any class in the same assembly AND any inheriting class can access it.

In .Net 2.0 you can have 'friend' assemblies. If you make an assembly a 'friend' of another then it will have access to anything marked internal as if it was in the same assembly.

MSDN: Access Modifiers[^]

MSDN: Friend Assemblies[^]

Re: access modifiers

pavanteja30-Jul-07 23:11

pavanteja

30-Jul-07 23:11

thanks, some what i have cleared..

pavan...

Re: access modifiers

Sonia Gupta30-Jul-07 23:33

Sonia Gupta

30-Jul-07 23:33

if u please explain it a little bit with an example.that explains the limit of using there modifiers
Thanks You.

Sonia Gupta
Soniagupta1@yahoo.co.in
Yahoo messengerId-soniagupta1
Love is Friendship and Friendship is Love....

Re: access modifiers

originSH31-Jul-07 0:03

originSH

31-Jul-07 0:03

If theres any part of what I said that you don't understand go and buy a book on C#. Inheritance and assemblies are all very basic concepts and you need to understand the basics well if you want to use C# to it's full extent.

Re: access modifiers

pavanteja31-Jul-07 1:00

pavanteja

31-Jul-07 1:00

Protected internal ………meaning is protected or internal…which is selected by including
Both a protected and an internal modifier in the member declaration. The intuitive meaning of protected internal is “access limited to this program or types derived from the containing class.

Protected internal is a union of protected and internal in terms of
providing access but not restricting.
Meaning
Inherited types, even though they belong to a different assembly, have
access to the protected internal members
Types that reside in the same assembly, even if they are not derived from
the type; also have access to the protected internal members

pavan...

satellite assembly

pavanteja31-Jul-07 19:12

pavanteja

31-Jul-07 19:12

do u have any idea abt satellite assembly? Laugh | :laugh:

pavan...

Top C#/.Net sites

koger30-Jul-07 20:36

koger

30-Jul-07 20:36

Hello

Could you give me your top-10 list of C#/.Net pages to visit?
I'm relatively new to .Net, so I only know this one Wink | ;)

Re: Top C#/.Net sites

Colin Angus Mackay30-Jul-07 21:20

Colin Angus Mackay

30-Jul-07 21:20

kak_karsten wrote:
Could you give me your top-10 list of C#/.Net pages to visit?

http://www.codeproject.com/[^]
http://www.codeproject.com/[^]
http://www.codeproject.com/[^]
http://www.codeproject.com/[^]
http://www.codeproject.com/[^]
http://www.codeproject.com/[^]
http://www.codeproject.com/[^]
http://www.codeproject.com/[^]
http://www.codeproject.com/[^]
http://www.codeproject.com/[^]

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My website

Re: Top C#/.Net sites

originSH30-Jul-07 22:10

originSH

30-Jul-07 22:10

lol I was thinking exactly the same thing :P

A few more:

Google[^] (especially handy for searching the msdn with "keywords site:msdn2.microsoft.com")

MSDN[^] The microsoft documentation and reference site. Not greta but occasionally handy.

Codeplex[^] The sourceforge of the .Net world.

Lutz Roeder's Reflector[^] The greatest .Net tool ever Big Grin | :-D

Edit icon is displaying in rowheader for datagrid

Software_Guy_12330-Jul-07 19:57

Software_Guy_123

30-Jul-07 19:57

Hello,

In .Net 2.0 version, windows form, we are using readonly datagrid. for this grid if user selects any cell and right click then windows context menu i.e. cut, copy, paste... is displaying.
Now user is selecting some other cells and try to paste then in rowheader it is dispalying edit icon. We don't want this edit icon should be display at rowheader but context menu should be display.

Your help is greatly appreciated.

Thanks & Regards,
Kumar

Open files with my Application

rkcsharp30-Jul-07 19:24

rkcsharp

30-Jul-07 19:24

I create an application that writes data from a Richtextbox to a file on hard disk with my own extension. But Windows doesn't know that file, and when I double click it, an Open With.. window appear. Please help me to open my own files with my application when I double click it.
Thank you very much
Sorry for my bad English

Re: Open files with my Application

Christian Graus30-Jul-07 19:48

Christian Graus

30-Jul-07 19:48

This involves setting up information in the registry. Every app that opens it's docs via the explorer, has itself stored as the default in the registry.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: Open files with my Application

rkcsharp30-Jul-07 20:14

rkcsharp

30-Jul-07 20:14

Thank you for replying my question, but i don't know much about this. Could you please tell me more about this ? Thank you very much

Re: Open files with my Application

Christian Graus30-Jul-07 20:19

Christian Graus

30-Jul-07 20:19

I'm not sure, to be honest. I have a rough idea, but I was intending mostly to show you enough to put you on the right track.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: Open files with my Application

rkcsharp30-Jul-07 20:25

rkcsharp

30-Jul-07 20:25

Thank you very much! I'll try to find more about this. Have a nice day!

Re: Open files with my Application

mav.northwind31-Jul-07 0:35

mav.northwind

31-Jul-07 0:35

If you want your application to be associated with a given file extension, you can add the appropriate keys to the registry, like CG said.
Let's say your extension is 'afe' ('arbitrary file extension' Smile | :)

), then you'll have to:
Add a new key HKCR\.afe
Set its standard value to afe_file
Add a new key HKCR\afe_file
Set its standard value to the textual description you want for .afe files.
Add a new key HKCR\afe_file\shell\open\command
Set its standard value to "Full path to your application" "%1"

Now every time you double-click on a .afe-file, your application will get started and given the full path of the file as first commandline parameter.

Regards,
mav

--
Black holes are the places where God divided by 0...

Re: Open files with my Application

rkcsharp2-Aug-07 1:18

rkcsharp

2-Aug-07 1:18

Thank you very much for your help

a Question regarding a weird illigal error read/write error

Green Fuze30-Jul-07 19:00

Green Fuze

30-Jul-07 19:00

Hey Everybody!

I wrote a multi-threaded crawler (which is doing a more than just crawling).
This is the first multi-threaded program I'm writting so I'm having some problems with it.

I have a 2 groups of threads, one is downloading from the net, the other is extracting the URLs and other information.
I've synchronized the threads using semaphores.

The problem is that sometimes, after the program is running for a while, I'm getting an Exception with the message that the process is trying to perform an I/O (read or write) to an illegal spot in the memory (also it adds that it could be a memory corruption).
I've also experienced a few times that the program simply get terminated, without any warning or any notice (the visual studio simply returns to its original stat from the debug stat).

ANY Ideas how to fix that?!
I'm terribly stuck! Frown | :(

Thanks A LOT!!!!

Re: a Question regarding a weird illigal error read/write error

Luc Pattyn30-Jul-07 23:13

Luc Pattyn

30-Jul-07 23:13

Sounds like you are having data corruption, as a result of a lack of
thread synchronization: most data structures are not thread-safe, that is
if one thread is say modifying a List, and another thread suddenly kicks in,
and accesses the same List, it may find it in an inconsistent state.

The one remedy is adding all the required locks; without them, it seems to
work for a while; with them, if applied correctly, it will work forever.

I can't possibly reproduce all the theory here, you should look for either
the lock statement, or some specialized classes such as ReaderWriterLock Class.

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Convert string to int

Xmen Real 30-Jul-07 18:59

Xmen Real

30-Jul-07 18:59

hi there,
i m trying to convert textbox.text to int but it always giving error while runtime
"Input string was not in a correct format."

textbox.text = "00.0000"
nums =Convert.ToInt32(textbox.text);

i also try

nums =int.textbox.text);</

it give error same above

nums =(int)textbox.text;</

it gives error
Cannot convert type 'string' to 'int'

someone know anyother way???;)

Becoming Programmer...

Re: Convert string to int

Green Fuze30-Jul-07 19:03

Green Fuze

30-Jul-07 19:03

try:

int nums = int.Parse(this.textbox.Text);

Re: Convert string to int

Martin#30-Jul-07 19:57

Martin#

30-Jul-07 19:57

This will also throw an exception!

All the best,

Martin

Re: Convert string to int

Xmen Real 30-Jul-07 20:09

Xmen Real

30-Jul-07 20:09

i just want to remove the decimals thats why i m trying to convert it in int as int dont have decimals
i can remove decimals with other methods too but conversion is the best way i thought

Green Fuze wrote:
try:

int nums = int.Parse(this.textbox.Text);

same error

Becoming Programmer...

Re: Convert string to int

Christian Graus30-Jul-07 20:19

Christian Graus

30-Jul-07 20:19

What you want requires two steps. First, use double.TryParse ( or you will get an error ). Then, use Math.Floor, or Math.Ceiling, if you want to force rounding. Either way, case the double you end up with to an int.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: Convert string to int

Martin#30-Jul-07 19:56

Martin#

30-Jul-07 19:56

Hello,

As your string represents a double value, you will get a system format exception.
This would work:

string text = "0";
int inums =Convert.ToInt32(text);

text = "00.0000";
double dnums =Convert.ToDouble(text);

But I recommend to use the TryParse methods.
They will not throw an exception.

double d;
if(double.TryParse(text,System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.CurrentCulture, out d))
{
    //converion is ok
}
else
{
    //conversion is not ok
}

All the best,

Martin

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.