C# Discussion Boards - CodeProject

Re: Interface

Ajay.k_Singh10-Jun-08 23:43

Ajay.k_Singh

10-Jun-08 23:43

I agree that Interface simulates the multiple inheritance behavior. Smile | :)

-Ajay.

-------------------------
www.componentone.com
-------------------------

Re: Interface

Colin Angus Mackay11-Jun-08 1:03

Colin Angus Mackay

11-Jun-08 1:03

Ajay K. Singh wrote:
I agree that Interface simulates the multiple inheritance behavior

What behaviour? interfaces have no behaviour because they have no implementation.

Recent blog posts:
* Introduction to LINQ to XML (Part 1) - (Part 2) - (part 3)

My website | Blog

Re: Interface

Guffa11-Jun-08 1:32

Guffa

11-Jun-08 1:32

The interface is like a contract. If a class implements an interface, you know that it fulfills the contract. Then you can also use the object in the form of the interface instead of the form of the class.

This is very useful with classes that implement the same interface. For example, both a string array and a List<string> implement the IEnumerable<string> interface. You can make a method that takes an IEnumerable<string> as parameter, and you can send either a string array or a List<string> to the method, so that the method can loop through the collection without caring about what the collection really is.

Despite everything, the person most likely to be fooling you next is yourself.

modified on Wednesday, June 11, 2008 8:11 AM

Overriding

namrata510-Jun-08 20:44

namrata5

10-Jun-08 20:44

Hi,

In overriding the method why method name should be same ?

Re: Overriding

Programm3r10-Jun-08 20:56

Programm3r

10-Jun-08 20:56

Hi,

See here[^], I think it will help.

Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

exe to dll

namrata510-Jun-08 20:43

namrata5

10-Jun-08 20:43

Hi,

Is it possible to convert exe to dll or dll to exe. If possible then what is the procedure ? If exe is coverted to dll then what about main function which is in exe ?

Re: exe to dll

J a a n s10-Jun-08 21:13

J a a n s

10-Jun-08 21:13

Do you want to convert your refrigerator to a cupboard? If so, what will you do with it's compressor?

*jaans

Re: exe to dll

Hum Dum10-Jun-08 21:25

Hum Dum

10-Jun-08 21:25

Re: exe to dll

Vikram A Punathambekar10-Jun-08 23:53

Vikram A Punathambekar

10-Jun-08 23:53

The question is perfectly valid, although Namrata could have tried it out for herself. You can change the output type to DLL and it will build a DLL just fine.

Cheers,
Vikram.

The hands that help are holier than the lips that pray.

Re: exe to dll

leppie10-Jun-08 23:38

leppie

10-Jun-08 23:38

Most exe can simply be renamed to dll, the opposite is not true. In the former case, your entry point (Main) will simply not be called. To achieve the same behavior, just call the Main function yourself from another dll/exe.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Re: exe to dll

namrata511-Jun-08 1:32

namrata5

11-Jun-08 1:32

thx!

"Unspecified error" in GetSecurityDescriptor of ADsSecurityUtilityClass

Deepali Dhingra10-Jun-08 20:32

Deepali Dhingra

10-Jun-08 20:32

Hi,
I am using "ActiveDs" to assign rights to a shared folder
Code:

ADsSecurityUtilityClass objClass = new ADsSecurityUtilityClass();

string strSharedFolderName = "\\\\" +strMchnName +"\\" +strName;
//strSharedFolderName  ="\\mcname\folder")

Object obj = objClass.GetSecurityDescriptor(strSharedFolderName,(int)ADS_PATHTYPE_ENUM.ADS_PATH_FILESHARE,(int)ADS_SD_FORMAT_ENUM.ADS_SD_FORMAT_IID);

The last line is giving "Unspecified Error"
Can someone help please???? Confused | :confused:

DDeepali

Re: How to Flickering in Waveform generated using GDI+

vinay_K10-Jun-08 20:29

vinay_K

10-Jun-08 20:29

this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer,true);

I used the above code Flickering is not completely removed, still it’s slightly flickering. Is there any way to remove complete flickering of Waveform?

Whenever the form is resized or the horizontal scrollbar is moved, the waveform starts flickering... Please do help me...

Re: How to Flickering in Waveform generated using GDI+

leppie10-Jun-08 23:32

leppie

10-Jun-08 23:32

You are probably trying to paint too much, try paint less when you scroll, and do a full repaint when u stop.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

how to deal with numerous fields

Mr.Kode10-Jun-08 20:15

Mr.Kode

10-Jun-08 20:15

i have data table contains more than 90 column and i want easy and effective way to make the user easly handle it (read & write)

welcome for any suggestions
regards

Re: how to deal with numerous fields

Ajay.k_Singh10-Jun-08 21:04

Ajay.k_Singh

10-Jun-08 21:04

Try to divide this table into sub-tables and establish relations between them (follow Normalization process).

After this you may use any grid control to show tables with parent child relationship.

This will be showing data in hierarchical representation, and make it very easy for users to look at it and modify it.

-Ajay.

-------------------------
www.componentone.com
-------------------------

Extract Link embedded file from word file using Application object

Muthuvasagan10-Jun-08 20:00

Muthuvasagan

10-Jun-08 20:00

how can Extract Link embedded file from word file using Application object.using C# coding.

Re: Extract Link embedded file from word file using Application object

John_Adams10-Jun-08 20:46

John_Adams

10-Jun-08 20:46

Hi,

If you are looking to work with MS Office objects (e.g., MS-WORD) then you need to use VSTO (Visual Studio Tools for Office). Below are the links for VSTO downloads:
http://www.microsoft.com/downloads/details.aspx?FamilyId=5E86CAB3-6FD6-4955-B979-E1676DB6B3CB&displaylang=en[^]

Hope this helps Smile | :)

Regards,
John Adams
ComponentOne LLC

file close issue

George_George10-Jun-08 19:46

George_George

10-Jun-08 19:46

Hello everyone,

Suppose I am using append mode to write to a file using StreamWriter. My application is a long run Windows service. I get the handle of StreamWriter only once during the start of my application by using StreamWriter abc = new StreamWriter (...). I never close the handle abc until application stops, and will use the handle to perform write operations in the runtime of the application.

I only write to the file rarely, for example, there may be no write operation for 2 days or something.

My question is, if I obtain the handle of the StreamWriter too long without any write operations (for example, 2 days or longer), will the handle (or the underlying file) be closed by some parties (e.g. CLR, OS, etc.) -- like timeout of socket?

thanks in advance,
George

Re: file close issue

Nouman Bhatti10-Jun-08 20:25

Nouman Bhatti

10-Jun-08 20:25

i think Garbage Collector will destroy the object.

Re: file close issue

George_George10-Jun-08 20:36

George_George

10-Jun-08 20:36

Hi Nouman,

Sorry I made a mistake in my original reply, the abc is a static member of my class. Will it be GCed? Smile | :)

Any updates to my original question?

regards,
George

Re: file close issue

Guffa10-Jun-08 20:38

Guffa

10-Jun-08 20:38

No, it will not be garbage collected as long as you have a reference to it.

Despite everything, the person most likely to be fooling you next is yourself.

Re: file close issue

George_George10-Jun-08 20:50

George_George

10-Jun-08 20:50

Thanks for your confirmation, Guffa!

regards,
George

Re: file close issue

Guffa10-Jun-08 20:37

Guffa

10-Jun-08 20:37

That may depend on wether the file is local or if there is a network layer involved in accessing the file. If it's local, I see no reason why it wold be closed.

However, if you are writing to the file so infrequently, why are you keeping it open? Just open the file when you need to read it, and close it afterwards. That way you don't risk losing any data because the stream is not flushed when the computer crashes...

Despite everything, the person most likely to be fooling you next is yourself.

Re: file close issue

George_George10-Jun-08 20:50

George_George

10-Jun-08 20:50

Thanks Guffa,

1.

It is a local file. Why do you think there may be issues for network based file? For example scenario?

2.

The reason why I keep it open is, the content writes to the file depends on ad-hoc client request, if no request, no write operation, if many requests, I need write a lot of stuff. It is impossible to predict the # of request of clients. Smile | :)

regards,
George

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