C# Discussion Boards - CodeProject

5-Jun-14 11:15

hi every one,
I am a beginner programmer in c#.net(windows app) and I want to write a chat application has a database that clients can send offline messages.
what should i do? Confused | :confused:

modified 6-Jun-14 15:50pm.

Mycroft Holmes5-Jun-14 12:51

Mycroft Holmes

5-Jun-14 12:51

Rather than ask a question in a forum why not do some research into your requirement, do a search of the articles and read through some of them, try Google. This type of application is often used as a teaching aid and there are lots of good examples.

Never underestimate the power of human stupidity
RAH

Member 107629805-Jun-14 20:08

5-Jun-14 20:08

yes i search in google, but i couldn't find what i want.

Mycroft Holmes5-Jun-14 22:31

Mycroft Holmes

5-Jun-14 22:31

Have some google foo[^]. If you can't get something out of that lot then you need to change your goals in life.

Never underestimate the power of human stupidity
RAH

Member 107629806-Jun-14 9:48

6-Jun-14 9:48

thanks,i saw some of them before,but others were useful.

ZurdoDev5-Jun-14 16:20

ZurdoDev

5-Jun-14 16:20

Please do not cross post. I answered your question.

How I Can Write A Chat Application?[^]

There are only 10 types of people in the world, those who understand binary and those who don't.

Mycroft Holmes5-Jun-14 22:29

Mycroft Holmes

5-Jun-14 22:29

The question has been closed, not what I would consider and answer!

Still if the guy can't find a decent chat example on the interweb then I give up!

Never underestimate the power of human stupidity
RAH

ZurdoDev6-Jun-14 1:24

ZurdoDev

6-Jun-14 1:24

Mycroft Holmes wrote:
The question has been closed, not what I would consider and answer!

It was closed after I answered it actually.

There are only 10 types of people in the world, those who understand binary and those who don't.

Marco Bertschi6-Jun-14 9:21

Marco Bertschi

6-Jun-14 9:21

We can't provide the source code for big applications like that - We are all volunteers, and most of us have hobbies and interests apart from writing code and answering questions.

I did a little Google search for you, and feel like these two tutorials can help you coming closer to your goal:

TCP/IP Chat Application Using C#[^]
Basic Client-Server Chat Application[^]

The console is a black place

Member 107629806-Jun-14 9:42

I can not convert WriteAllBytes to something can be used Progress Bar??

6-Jun-14 9:42

thanks so much.

Hades104-Jun-14 1:27

Hades10

4-Jun-14 1:27

public void Download(string user,string filename, out byte[] file)
        {
            file = new byte[1];

            if (!System.IO.Directory.Exists("Share"))
                System.IO.Directory.CreateDirectory("Share");

            foreach (string the in System.IO.Directory.GetFiles("Share")) 
            {
                if(the.Contains(filename))
                if (System.IO.File.Exists(the))
                {
                    file = System.IO.File.ReadAllBytes(the);
                    AddLog(string.Format("> File: {0} has been downloaded at {1}. by {2}",(new System.IO.FileInfo(the)).Name,DateTime.Now.ToShortTimeString(),user));
                    break;
                }
            }

            if (file.Length == 1)
                file = null;
        }

this is my code.
Anyone can help me convert it? Plzzzz.

Re: I can not convert WriteAllBytes to something can be used Progress Bar??

Richard MacCutchan4-Jun-14 2:48

Richard MacCutchan

4-Jun-14 2:48

Member 10287915 wrote:
Anyone can help me convert it?

To what exactly? If you wish to use this with a progress bar then you should check the file size before starting and then read and write in chunks (e.g. each chunk is 5% of the total), so after each chunk you update your progress bar.

Re: I can not convert WriteAllBytes to something can be used Progress Bar??

Eddy Vluggen4-Jun-14 2:58

Eddy Vluggen

4-Jun-14 2:58

"Convert"?

You mean "extend".

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

Re: I can not convert WriteAllBytes to something can be used Progress Bar??

Hades104-Jun-14 4:15

Hades10

4-Jun-14 4:15

My English very bad. exactly is extend.

Re: I can not convert WriteAllBytes to something can be used Progress Bar??

GuyThiebaut4-Jun-14 6:21

GuyThiebaut

4-Jun-14 6:21

Have a look at the Application Auto-update via Online Files in C#[^] article.

Within in it I use a progress bar to show the progress of a download from an ftp site.
Have a look at the Bytesdownloaded method within Form1.cs of the Update application if you want to get to the nitty gritty.

“That which can be asserted without evidence, can be dismissed without evidence.”

― Christopher Hitchens

Problem with Deleting rows in MSI database - with particular value reference alone

Mohan Subramani3-Jun-14 23:19

Mohan Subramani

3-Jun-14 23:19

Hello Guys,

My Code:
private void button3_Click(object sender, EventArgs e)
{
FileInfo msiFile = new FileInfo(@"C:\temp\WinInstaller\Sample.msi");
WindowsInstaller.Installer inst = (WindowsInstaller.Installer)new Installer();
Database instDb = inst.OpenDatabase(msiFile.FullName, WindowsInstaller.MsiOpenDatabaseMode.msiOpenDatabaseModeTransact);
WindowsInstaller.View view = instDb.OpenView("DELETE FROM `Registry` WHERE `Registry`.`Root`='1'");
view.Execute(null);
view.Close();
instDb.Commit();
}

Am trying to delete a row in "Registry" table in MSI Database:
Registry (s72) Root (i2) Name (L255) Value (L0)
69ADA5050611 1 PATH C:\Program Files\Sample\

Am successfully in deleting the row with the below combination (tired seperatly with every command)

WindowsInstaller.View view = instDb.OpenView("DELETE FROM `Registry` WHERE `Registry`.`Registry`='69ADA5050611'");
WindowsInstaller.View view = instDb.OpenView("DELETE FROM `Registry` WHERE `Registry`.`Name`='PATH'");
WindowsInstaller.View view = instDb.OpenView("DELETE FROM `Registry` WHERE `Registry`.`Value`='C:\Program Files\Sample\'");

But i want to delete the row using "Root" as refernce, am getting error when i use the below command.

WindowsInstaller.View view = instDb.OpenView("DELETE FROM `Registry` WHERE `Registry`.`Root`='1");

I get runtime error for the above line "COMException was unhandled OpenView,Sql"
How to delete the row using Root as reference.
Please suggest.

Cheers,

Re: Problem with Deleting rows in MSI database - with particular value reference alone

Mohan Subramani4-Jun-14 3:09

Mohan Subramani

4-Jun-14 3:09

Guys, Got the solution, Root column is of i(2).. But am trying to store that as string with quotes '1'
To work, i Should `Registry`.`Root`=1

ILMerge is not working

Ashfaque Hussain3-Jun-14 20:07

Ashfaque Hussain

3-Jun-14 20:07

Hi I am giving target type as exe and output file name also has extension exe but erro i am getting:

C:\Program Files\Microsoft\ILMerge>ilmerge /target:exe /out:myoutput.exe Utility.exe
FeCom.dll /ndebug /xmldocs /targetplatform:v4
,"%ProgramFiles%\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0"
An exception occurred during merging:
ILMerge.Merge: /target specified as an executable, but output file, 'C:\Program'
, does not have a .exe extension.
at ILMerging.ILMerge.Merge()
at ILMerging.ILMerge.Main(String[] args)

Richard MacCutchan3-Jun-14 21:56

Richard MacCutchan

3-Jun-14 21:56

It looks like it is mis-reading the "C:\Program Files" path as two separate paths, even though you have it in double quotes. You could try using a relative path to that directory to avoid the two-word path name, something like:

ilmerge /target:exe /out:myoutput.exe Utility.exe FeCom.dll /ndebug /xmldocs /targetplatform:v4 ,..\..\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0

Note: I'm not sure about that comma in front of the last path.

Ashfaque Hussain3-Jun-14 23:12

Ashfaque Hussain

3-Jun-14 23:12

Thanks Richard MacCutchan,
still I am getting the same errors.

Richard MacCutchan3-Jun-14 23:26

Richard MacCutchan

3-Jun-14 23:26

There is a contact email on http://research.microsoft.com/en-us/people/mbarnett/ilmerge.aspx[^] which may be worth trying.