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'Ethernet' TCP/IP Communication Project. Implemented in VS2015/C#


The project requires that the freelancer modify an existing C# WPF application which transfers text messages and files between windows computers on an ‘Ethernet’ network.

The modifications must be made using VS2015 and the working WPF prototype (‘Current App’). The source code of the current app is attached as a 'Zip' file and this specification is attached in 'PDF' format.

The current app implements a server which accepts multiple clients and allows the user to send short text messages (‘Commands’) or files of any format between server and client(s) using TCP/IP. The WPF source application itself very small application and comprises less than 500 lines of C# code.

The modification requires that the transfer mechanism be enhanced to allow the transfer of a double array (of variable length) in either direction between the networked computers.

The delivered product must use the ‘[url removed, login to view]‘ Network library which can be downloaded from: ‘[url removed, login to view]’.

The delivered application is intended for ‘proof of concept’ only and the techniques which are developed will eventually be incorporated into a larger medical simulation system.

The source code of the solution has been supplied as a ‘Zip’ file. The ‘Nuget’ packages required for the solution must be restored before the app can be recompiled.

Current Application Functionality:

The application consists of a single form (shown above) which can function both as a ‘Server’ and a ‘Client’. The application is a modification of the ‘[url removed, login to view]’ ‘WPF’ example program and provides three functions:

1. It establishes a bi-directional TCP/IP connection between the server and the client application.

2. It enables the asynchronous transmission of files between the server and the client application.

3. It enables the asynchronous transmission of short text messages (“Commands”) between the server and the client application.

Additional Functionality Required:

The required additional functionality must be attached to the <Send Array to Remote> button (arrowed in green, above). When this button is tapped, the app will:

1. Instantiate a new double array containing between 10 and 25 real, random numbers. (A suitable method for generating such an array is shown below.)

2. List these numbers in “F3” format in the Communication Log (arrowed in red, above).

3. Encode the array in a suitable format and

4. Send it to the connected client.

On receipt of the array, the client will:

1. Decode the array which has been sent.

2. Reconstruct it as a double array.

3. List the elements of the array in “F3” format in the Communication Log.

The new functionality will be bi-directional and designed so that, in the future, it will be possible to transmit arrays of up to 150 real numbers at a frequency of 1 Hz.

Method for making a double array:

Double[] MakeDoubleArray()


Random rnd = new Random();

int ArraySize = [url removed, login to view](10, 25);

var DoubleArray = new double[ArraySize];

for (int i = 0; i < ArraySize; i++)


double u1 = [url removed, login to view]();

DoubleArray[i] = i * u1;


return DoubleArray;


The method should be called to generate a new array whenever the <Send Array to Remote> button is tapped.

Compétences : .NET, Programmation C#, Bureau Windows

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Concernant l'employeur :
( 11 commentaires ) Sydney, Australia

N° du projet : #13069006

Décerné à :


Hello. It looks like something pretty easy and it can be done in 1-2 days.

31 $ USD en 1 jour
(876 Commentaires)

16 freelance ont fait une offre moyenne de 200 $ pour ce travail


Hello, I have read and understood your project requirements to modify an existing c# wpf application to send and receive array of double numbers. I am a c# developer with exceptional competence when it comes to TCP/IP Plus

250 $ USD en 5 jours
(14 Commentaires)

Hello, I am a Chinese Developer, Hwang Long I've just read your job posting and I'm very interested. I think you are also a developer. I have a wealth of experience in c#, WPF programming I've finished several n Plus

222 $ USD en 3 jours
(8 Commentaires)

hello,how are you. i read your bid carefully. i am C#, .WPF expert and have full experience for 7 years. Socket programming is my top skill and my interested skill. I can provide most quality and high fast. if you Plus

155 $ USD en 3 jours
(7 Commentaires)

As description in your requirement. I'm sure to complete this tool for you. inbox me if you have any question about my skill or this project. Thank for your attention HuyPQ.

155 $ USD en 3 jours
(33 Commentaires)

Hi, I have 5 years experience in development using .Net framework from WPF to Azure. let's discuss your work in derails. add me on Skype: azeemrazzaq Thanks Azeem

333 $ USD en 5 jours
(1 Commentaire)

Hi there. I'm a Application Developer (Android, iOS, Web Apps, Window Apps ..) with a passion for creating clean and easy to use Applications that help people. Passionate, thorough, and pragmatic App developer with Plus

666 $ USD en 3 jours
(3 Commentaires)
155 $ USD en 3 jours
(2 Commentaires)

Hello, Please give me chance to work with you on this project, I am Microsoft Full Stack developer, having expertise on web based and desktop base application development, including mobile apps as well using Xamarin, Plus

244 $ USD en 3 jours
(5 Commentaires)
150 $ USD en 6 jours
(1 Commentaire)

I always write a working prototype before bidding on any project., which means I have already completed the project and will deliver it to you at your request. Here is a link to a screen shot: https://imagebin.ca/v/ Plus

55 $ USD en 0 jours
(1 Commentaire)

Hi, I am an experienced developer with more than 8 years of C#, .NET expertise. Please let me know when can we start the work. Thank you, R.Deb

180 $ USD en 3 jours
(0 Commentaires)

Hi Good morning. I went through the source code and requirement doc. This requirement is straightforward and able to complete within a day. BTW, Overall I've 10 years of experience developing WPF and win form ap Plus

66 $ USD en 1 jour
(0 Commentaires)

Hi I have very good experience .Net Framework. I have 4 years of experience in WPF,WCF,MVC,C#,SQL. I have done project for Investment Banking domain and Health Care Domain Project I can assure you about the quality of Plus

144 $ USD en 3 jours
(2 Commentaires)

A proposal has not yet been provided

244 $ USD en 5 jours
(0 Commentaires)

Thank you for such an elaborate and clear description of job. Very few employers give it like that. Please come on chat so we can discuss negotiation. I am bidding low because we want to build our reputation on thi Plus

150 $ USD en 6 jours
(0 Commentaires)

Dear sir I have just read your description I have following technologies and skills : - Unity3D and Creating a Game o AR(Augmented Reality) System o 3D, 2D GAME o PC, Android, iPhone Built Plus

155 $ USD en 3 jours
(0 Commentaires)

Dear Prospect Hiring Manager. Thank you for giving me a chance to bid on your project. I am a serious bidder here and i have already worked on a similar project before and can deliver as u have mentioned I have c Plus

194 $ USD en 6 jours
(0 Commentaires)