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.NET4

.NET4

Great Reads

TCP Socket Off-the-shelf

by Igor Ladnik

Wrapper to facilitate usage of TCP sockets

Routing Manager for WCF4

by Roman Kiss

This article describes a design, implementation and usage of the Custom Routing Manager for managing messages via Routing Service built-in .Net 4 Technology.

An extensible ExifReader class with customizable tag handlers

by Nish Nishant

An ExifReader class in C# that supports custom formatting and extraction. StyleCop compliant code, with demos for WPF and Windows Forms.

Silverlight DataTrigger is the Answer to View Model / MVVM Issues

by defwebserver

How using the Silverlight DataTrigger allows you to run a process and then raise another when using View Model (MVVM)

Latest Articles

Editor3D: A Windows.Forms Render Control with interactive 3D Editor in C#

by Elmue

An easy to use 3D control which can be integrated into an application in a few minutes

WCF Client For Web Services that Require Authorization by HTTP Header

by NikStar

Using OutgoingMessageProperties and OperationContextScope to implement authorization by http header for WCF client that communicates with non WCF-based web services.

Smart Home – Controlling Shelly® Devices (Part 1)

by Ralf Meier

In this article, I demonstrate how to integrate Shelly® relays into my smart home, controlling the devices through routines in VB.NET.

Working with MSDTC...

by Sufyan S Jabr

All that you need to know when working with MSDTC, troubleshooting and problem solving.

All Articles

.NET4

Can I use wpf (not wpf 4.0) with 3.5 net framework to write programs for microsoft surface ?

11 Apr 2010 by #realJSOP

Yes. Surface is written completely with WPF. There are plenty of details if you'd only use google.

Bag O'Tricks with NumericUpDown?

5 May 2010 by #realJSOP

http://weblogs...

Problem with WPF dynamic nested controls selected item

4 Jun 2010 by #realJSOP

The problem I think is that your tiNew variable is being reallocated, so the program has the same tab twice. You sholud write a method that creates a new TabItem and sets all the appropriate properties, and returns the TabItem to be added to the TabControl.Items collection.

Iphone apps with .NET framework 4.0

15 Jul 2010 by #realJSOP

No, they can't. You have to use one of the apple-approved languages.

Linking multiple windows Blend 4

3 Oct 2010 by #realJSOP

1) Blend is a component design tool, not a programming tool. If you want to make make a window display another window, you have to write code to do it.2) Most of the time, you use data binding, but you can also just manually add items.

Blink detection in C#

12 Nov 2010 by #realJSOP

If you're "skillful" in another language, why use C#?

unable to include'VAR' implicitly typed variable in Class Library

9 Dec 2010 by #realJSOP

var can only be used inside a method/property. In other words, you can't get there from... ummm... there.

.Net Framework 4.0

29 Dec 2010 by #realJSOP

No. That subject is way to broad to be answered here. The best thing you can do is develop some initiative and google ".Net 4.0". There are MILLIONS of results awaiting your perusal.

Securing Assembly

31 Jan 2011 by #realJSOP

Your only recourse is to obfuscate it, but even that can eventually be reverse engineered. There are A LOT of obfuscation tools out there. Google is your friend.

Sending DTMF from Lync 2010 API

31 Jan 2011 by #realJSOP

I think you mean the UCMA API, and it appears as if you need v3.0 of the API in order to do DTMF. Google is your friend, but admittedly, you're going to have to look hard for the information you need. Microsoft does have a forum for this.

Windows Service Help '@ Update'

2 Feb 2011 by #realJSOP

Windows services don't typically interact with the desktop, mostly because a service can run when nobody is logged onto the box. If you need something to pop up at 4pm every day, I would write an application and add it to the Windows scheduler. As far as doing something on a schedule in a...

Windows service won't stay started

3 Feb 2011 by #realJSOP

Why is your main method in your Service class?

have a problem to connect two pc with TCP

14 Feb 2011 by #realJSOP

Using WCF is much simpler, and there's a lot less code involved.As to your question, make sure that both machines are using the same port for comms. Also be aware that if a port is currently in use, the app running on that box will throw an exception. You could inadvertantly be leaving a...

Architecting a Scheduled Task in .Net

15 Feb 2011 by #realJSOP

When you said "must be VB.Net", you pretty much automatically locked youself into Visual Studio (especially if you want the help resources of millions of developers all over the world). To say it's ubiquitous would be an understatement.You say it's going to run via a web form, soi I assume...

how to get domain name and windows login name using silverlight application

17 Feb 2011 by #realJSOP

Since you have to embed the siverlight app into the aspx page, why don't you pass that info in the querystring (I'd encrypt it as well)?

how to get domain name and windows login name using silverlight application

18 Feb 2011 by #realJSOP

Do you have an appropriate UriMapper element for the silverlight page in the MainPage.xaml of your silverlight app?

What's Difference Between .net Frame Work 2.0, 3.0, 3.5 and 4.0

1 Apr 2011 by #realJSOP

Seriously, google is pretty damn handy:http://en.wikipedia.org/wiki/.NET_Framework[^]

Shell replacement in C# .NET4.0

5 Apr 2011 by #realJSOP

It shouldn't matter what version of .Net you use (as long as you're not using 1.n because that's just so freakin' old it's not worth considering). What you need to do is become familiar with how the OS implements the feature. If you stop and think about it, it's merely a scaled down version of...

How can register the activex on client machine

8 Apr 2011 by #realJSOP

You have to put the OCX file in a MSI file and add a custom action to register the OCX file.

ASP.NEt 4.0 questions

10 Apr 2011 by #realJSOP

0) When I create a class, the App_Code folder isn't automagically created for me.1) I've written a BasePage class that inherits from System.Web.UI.Page. When I type that out, intellisense doesn't change the color of Page like I'm used to (but it's not underlinedeither to indicate an...

Download file through http in C# Windows App

21 Apr 2011 by #realJSOP

If you requested the file (I assume via the HttpWebRequest or WebClient objects), you should know the name of the file. In any case, just save the file with a temporary name, prompt the user for the name they want to use, and rename the temporary file.

FTP SSL using .NET 4.0

9 May 2011 by #realJSOP

references you could have found on google (like I did)A reference to the different variations of the FTP protocol:http://www.rebex.net/kb/secure-ftp.aspx[^]A free third party library for ftp/ftps:http://starksoftftps.codeplex.com/[^]Google is free, and easy to use.

How to prevent if if if if if if...?

19 May 2011 by #realJSOP

Without knowing more about your code, I have to tell you that the way you're doing it is the only way. You *could* abstract out the comparisons into a few methods, but you'd have to design it carefully.

Visual Studio .NET conversions between versions

13 Jun 2011 by #realJSOP

Your code probably utilizes one or more obfuscated 3rd party libraries, and maybe even some native-code DLLs. Are you sure you have all of the files referenced by your application? What do you mean by "unspecified differences between 2.0 and 4.0? Can you supply one of the warnings you're...

Generic function to delete a record in SQL Server

25 Jun 2011 by #realJSOP

delete from table where column1=@column1 and column2=@column2...

Expand AccordionItem through Separate button

30 Jun 2011 by #realJSOP

You probably have to set the selected item in the Accordion control itself (as opposed to setting IsSelected on the item itself.

Determining opening location of a form.

4 Jul 2011 by #realJSOP

You can do it one of two ways:0) Handle the Left Mouse button Down event, and you can then retrieve mouse position at the time of the click. Then, you can open a form at that cursor position.1) Handle the button click event and position the for at the top/left corner of the button being...

VB.NET Setup and deployment

7 Jul 2011 by #realJSOP

I found this with google:http://msdn.microsoft.com/en-us/library/ms973920.aspx[^]

C# Choosing web service help!

7 Jul 2011 by #realJSOP

A web service doesn't hold the data. It provides read and/or write access to it. the data itself is stored in some sort of data medium, usually a database, but sometimes a flat file.If you want to use interop, you should create a .Net assembly that communicates with the web service, and...

Why do i get this error i want the reason

18 Jul 2011 by #realJSOP

Change your

Memory map an Isolated storage file

30 Jul 2011 by #realJSOP

You do it the same way map any other file to memory. All you have to do is get the SpecialFolder name of the isolated storage folder, and you're off to the races.MSDN - Environment.SpecialFolder Enumeration[^]

how to get scrolling option in gridview visual studio 2010 (header should be static)

1 Aug 2011 by #realJSOP

Did you even try googling this? I did (search phrase = "asp.net gridview with static header row"), and got 561, 000 results back, and this was the 2nd result returned.http://weblogs.asp.net/dwahlin/archive/2007/07/31/freeze-asp-net-gridview-headers-by-creating-client-side-extenders.aspx[^]

Error while accessing COM in WCF service

24 Aug 2011 by #realJSOP

I found this with google:You may need to set launch permission to the com component for the windows user the apppool is running as in IIS. You can do it by running: dcomcnfgand...And set file permissions so the user can read the COM dll file.Also check the COM's registration to...

WPF Client - WCF allow cross-domain access - Issue

28 Aug 2011 by #realJSOP

MSDN - Securing Services and Clients [^]

[Solved] How to prevent Eval() from being called unless the containing Panel is Visible?

1 Sep 2011 by #realJSOP

Write a method in your code behind, put the if in there, and call your method from the markup.public void ControlEval(string evalThis){ if (pnlFeaturesText.Visible) { Eval(evalThis); }}and then you can do this:

timer is not working for file creation using c#

8 Nov 2011 by #realJSOP

First, why are you creating a winform app? This should be a windows service so that it runs even when there is no user logged onto the system.Second, you should use a thread to perform the task, or even a BackgroundWorker...

4 Digit Combination With C#. Please Fix My Sample Code

17 Dec 2011 by #realJSOP

Are you aware that regular permutations don't do duplicates? Your data set of 9,1,3,9 will generate 16 permutations from an actual possible 24. If that's indeed what you're expecting, your permutation code can be just 14 lines of code (accounting for proper code formatting techniques)....

A Question on Integer.TryParse()

19 Dec 2011 by #realJSOP

If possible, the TryParse method populates the specified out variable. Before using the out variable, you need to check the retur n value of TryParse which indicates whether or not the conversion was succsessful. The reason TryParse exists is so that you don't have to rely on exceptions to...

how to proceed the B32virtual machine

27 Dec 2011 by #realJSOP

You should ask this question at the bottom of the article's page:How to create your own virtual machine[^]

How to initialize array with array in C#?

4 Mar 2012 by #realJSOP

Why don't you just use the Array.CopyTo method?

How to send request from client to server printer for printing using C# .NET windows application?

15 Oct 2016 by #realJSOP

An article right here on CodeProject:An absolute beginner's guide to printing in .NET[^]

No connection could be made because the target machine actively refused it in .NET socket programming windows application

27 Dec 2016 by #realJSOP

If it's a local server, just use System.IO.File.Copy to copy the file. Depending on the machine running the code, you'll need the full DNC path to the other machine system/drive/folder. Of course, that won't work if you don't have the correct permissions.Your other option is to use the...

How to resolve "missing parameter values" error in crystal report?

1 Oct 2017 by #realJSOP

The best solution is to stop using Crystal reports. :) (I'm not a Crystal Reports expert, but I did stay at a Holiday Inn Express last night.)

Generic DAL for ADO.Net - A Revisit

10 Apr 2020 by #realJSOP

A rewrite of a previous article with more liquid nitrogen and bacon

How to display msgbox in asp.net?

5 Apr 2013 by $aurabh Dhir

You have to add reference of using " system.windows.forms " to use messagebox.show feature.It very simple.for more questions mail me at " saurabhdhir3@gmail.com "

cannot run exe .Net framewok not installed

2 Oct 2013 by $ultaNn

I have created an EXE for my windows application , that exe is not running on other system which dosnt have .net framework 4i want create an exe that should take all dependencies and work on every system which dosnt have .net framework

The "Rule-O-Nator" - An example of dynamically loading classes at runtime

19 Jun 2013 by -james

Being Dynamic in a Staticly Typed World

Cant bind object with null reference

14 Nov 2014 by .Net Jim

Check this out...Faster MS Excel Reading using Office Interop Assemblies[^]

Claim Based Security Service.

5 Jun 2012 by .net333

Good evening friendz... I am doing one big project with wcf services..i want to secure that wcf services with claim based security service...i studied the msdn document..but i didn't understand..i want a practical source code for that.... Thank You.....

Templtes Inserting in Sqlserver 2008

6 Jun 2012 by .net333

Good evening friends.... I have the static templtes in my project...i want to edit the Static Templte and i want to insert this edited templtes into sql server 2008....my question is how can i Insert This edited template Html format code in Sqlserver 2008?Thanx in...

can any one give link for crystal report viewer for VS 2010

26 Nov 2014 by /\jmot

See this link..http://www.c-sharpcorner.com/UploadFile/0146e3/crystal-report-in-visual-studio-2010/[^]

fire queries to the database table connected to WPF datagrid

1 Jul 2011 by 01.mandar

i have created a .mdf file in VS2010 and have connected to datagrid now how can i fire some queries and do update to the database and reflect the change on datagrid

Lightswitch inside ASP.Net application

24 Sep 2013 by 09hadi

Hi, I am kinda new to the whole integrating scene but what I want to know, is there a way one could embed a LightSwitch application creation suite inside an ASP.Net website. Any ideas or a lead would be greatly appreciated.

AND == where, OR == ???

20 May 2009 by 0x3c0

You can use boolean operators, like the && operator instead of the two 'where' clauses, and the | operator for an OR operation. For example, your first example would be:var results = from items in collection where...

DocMounter 2: A tool to build VS.NET documentation (now with Sandcastle)

15 Nov 2010 by 10Tec, Sergey Gorbenko

Tool for creating MS Visual Studio documentation files - XML Summaries, HxS/MSHC help solutions and manuals.

SSIS Package giving error at send mail task

28 Aug 2014 by 1arch1

I have a package with a task used SEND MAIL Task, but its executing fine till it approach to send mail task and display an error. Which is [Send Mail Task] Error: An error occurred with the following error message: "Syntax error, command unrecognized. The server response was: 5.0.0 Your email...

Debugging C# COM assembly in VS2010

26 Jul 2013 by 2006 Flauzer

I'm developing a C# assembly which is to be called via COM from an old vb6 (ie, "native" win32, not .net) application. I've installed VS2010 Premium in a W7 x64 and simply my goal is to use Visual Studio to debug the C# code...Other hint: the C# assembly is compiled in "x86 mode" (.NET4)...

Debugging C# COM assembly in VS2010

29 Jul 2013 by 2006 Flauzer

From menu Debug->"Attach to.." option, please point the correct process ie, dllhost.exe COM Surrogate. and not win32 client....

dynamic grid view paging

6 Jul 2011 by 2irfanshaikh

Please check the below linksGridView Custom Paging[^]Advanced Paging GridView with ASP.NET 2.0/3.5[^]

One quick question about window phone

20 Jun 2012 by 2irfanshaikh

Please check the below link:http://msdn.microsoft.com/en-us/magazine/gg598930.aspx[^]&Making a Voice Recorder on Windows Phone[^]

Is this possible with a LINQ to XML query???

29 Jul 2009 by 333mmm

At the bottom I have pasted in an XML file I am working with. My goal is to query this file using LINQ to XML and have the response formatted as follows:reportDate alias24 alias392009-05-27 138,385.11 ...

Hard disk drive password protection

3 Nov 2010 by 51318402

I want to create an application which display all hard drives. After selecting a hard drive user should be able to lock it by giving a password, without correct password no contents of that drive should be displayed anywhere in the pc

Hard disk drive password protection

3 Nov 2010 by 51318402

Thanks for your quick response Nishant. I found one desktop application (http://www.fileheap.com/dbquery/1/hard+disk+password+protection+source+code)Its pretty interesting and i want to develop my application same as like the above. But not getting any solution yet...

Read and write C# object in DataBase

30 Aug 2015 by 9000605667

I want to store the C# object in DataBase and retrive that from DB.How many ways are there to achieve this.

SQL-Server-2008R2

"Simple / Fast" Event

8 Aug 2011 by 94HellGate

i just found a piece(not enought to find it out) of code and i'm wondering how i can do this, because it's much better than a normal event in my caseconsole.BindCommand("!", delegate(GameTime gameTime, string[] args) { console.WriteLine(args[0]); ...

How to add Multiple items in same column in sql server 2008?

12 Jul 2012 by __TR__

You can Create 2 tables tblBill and tblBillDetailtblBill will store information like customerID, BillDate or any other field that will be same for a bill.tblBillDetail will store the Bill details like no. of items purchased (Quantiy), unit price of each item(UnitPrice), Total amount of...

Watermark add to image and save database c# (winform)

12 Dec 2012 by __TR__

Check these CP articlesCreating a Watermarked Photograph with GDI+ for .NET[^]How to Create watermarked images in C# ASP.NET ?[^]

How I can deserialize the dynamic key name using DataContractJsonSerializer

23 May 2012 by __Untitled

I have a web service, the client program can post a key to one of its web method, and the method will return {"key-client-post", "value-from-server-side"}, the structure of return string is fixed, but the key name is dynamic, it depends on the client program.My question is how I can...

How can I Serialize and Deserialize List<Contact> or ObservableCollection<Contact>

10 Jun 2012 by __Untitled

I am writing a GroupSMS app on Windows Phone, and I want to create a group and add some contacts into it, then serialize the group to isolatedstorage file, so that I can get the group information next time when app restart. My question is how can I Serialize and Deserialize List or...

How to access dynamic TextBox's data in Asp.Net

4 Aug 2012 by _Amy

Hi,In button1 click event add the TextBox like:TextBox t1 = new TextBox();t1.ID = "TextBox1";TextBox t2 = new TextBox();t2.ID = "TextBox2";Panel1.Controls.Add(t1);Panel1.Controls.Add(t2);//Now your both textboxes are added into panel.//You can add it wherever you want.In...

use tv tuner card in c# .net windows application

5 Aug 2012 by _Amy

You should use DirectX.Capture Class Library[^].--Amit

Sorting columns in Grid View(Error)

5 Aug 2012 by _Amy

Hi,I could have written the code which can solve you problem, but I would like to suggest you to read GridView Paging and Sorting[^]. This is a very nice article for the beginners.--Amit

Window.open() in javascript .Code for opening a new window with maximie button disabled

8 Aug 2012 by _Amy

Hi,Try this:window.open('../Test1.aspx', null, 'height=500, width=1100, status=no, resizable=no, scrollbars=yes, toolbar=no,location=no, menubar=no');[Edited]:, null,...

unselect gridview row when clicked on outside of gridview.

27 Feb 2013 by _Amy

You can try using :MyGridView1.SelectedIndex = -1; But this is a server side code. You need to fire this on JavaScript page click event(Use __doPostBack( 'target', 'args')). Also check : How to use __doPostBack function[^].--Amit

Connecting VS 2010 Ultimate to Sql server 2012

24 May 2013 by _Amy

This is because your database is from SQL Server 2012. The only way to resolve this as I found is to Generate Script from SQL Server 2012 then run it in SQL Server 2008 R2.--Amit

N-Tier Architecture Sample Program

4 Jun 2013 by _Amy

You should start from : http://en.wikipedia.org/wiki/Multitier_architecture[^]See the links below:N-Tier Architecture and Tips[^]N-Tier Application Architecture[^]Creating ASP.NET Applications with N-Tier Architecture[^]Architecture Guide: ASP.NET MVC Framework + N-tier + Entity...

how to get a system Idle Time?

14 Oct 2015 by _Amy

You can use user32.dll and LASTINPUTINFO[^] to calculate the system ideal time.Here is the similar threads:How to calculate system idle time out and put the machine to sleep?[^]Getting the user idle time with C#[^]System Idle Time Detection in C#.Net[^]--Amy

Generate DataSet XSD file from a table in MSSQL database

22 Jul 2013 by _Asif_

check this linkhttp://msdn.microsoft.com/en-us/library/ms175113.aspx[^]

Interger value length 6 (123456) it is fixed leangth,but we have 2 digits like (12) value, so i want result (000012)

6 Aug 2013 by _Asif_

Try this int number = 1234;//D6 = pad with 000000string outputValue = String.Format("{0:D6}", number);

Automate download of file using .net

12 Jul 2015 by _Asif_

Use this Link[^] to do what you want.

How I Can Create A Simple And Small Program In Window Service

26 Jul 2015 by _Asif_

A basic sample with good explaination can be found here![^]

How to split one large amount of data column into two or three columns in sql server 2008?

13 May 2013 by _Damian S_

How about select left(FIELDNAME, 50) as AddressPart1 from TABLENAME

Dynamically adding controls on a hierarchical structure on MVC

6 Aug 2012 by _DanV_

How to dynamically add controls on a hierarchical structure on MVC.

Multi-level WPF Popup Bound to a Hierarchical Tree

16 Jun 2016 by _eol_

This article presents the minimal code necessary to display a hierarchical tree using Popups.

WPF Image Buttons 100% in XAML

27 Sep 2016 by _eol_

The goal of this article is to create flat image buttons with bindable properties.

Railway Reservation System using sms

27 Feb 2013 by _Maxxx_

You can subscribe to SMS gateway services that will send and receive SMS messages to/from a server with an API you can use to interact with it.So, you can develop the system you require, using the SMS server as your interface to the SMS world.Your local telecoms provider(s) should e able...

question realated to wizard control

14 Jan 2014 by _Maxxx_

Try this[^]

Quick Introduction to DatePicker, Tricks and MVVM Thoughts

4 Oct 2013 by _Noctis_

Showing how to use and tweak the DateTimePicker control

Logging: How to Growl with NLog 3 (or 2.1)

15 Jun 2014 by _Noctis_

This will set you logging from your NLog to your Growl in no time.

ASP Linklabel - Trying to change text

3 Aug 2012 by _Zorro_

Hi,Try innerText/innerHTML instead of InnerText/InnerHTML.Or try this: http://www.permadi.com/tutorial/jsInnerHTMLDOM/index.html[^]Hope it helps.

WPF Budgeting Project

3 Nov 2013 by A-MaxLee

HI to all... I will like to ask that got any reference such example, project, codes and so on that I can refer if I'm preparing to developing a family budget system for my final year project???Reply are welcome~~ Thank you

Save Zip File in Access Database With File Encryption in C#

7 Jun 2014 by A. Najafzadeh

Saving zip files in access database with encrypting bytes when file saved in access database and decrypting bytes when extracting files from database . . .

Best practises in .Net

28 May 2014 by A.Girish

Hello Buddies,I want to ask every one who cares for knowledge instead of money.What is this Pattern Practises meant for?how it is useful?If it is useful from where i have to start..Plz any one suggest me because it is difficult for me to start and get understand about it..

Aync and await usage

28 May 2014 by A.Girish

Hello friends,I want to ask about async and await.i heard about synchronization, lock,asynchronization (I'm not sure whether it is from java) how all these are differentiate each other.how it is different from threads.even though i find this in Internet you solutions clears my doubt...

unable to load assembly

22 Sep 2013 by a.pkumar

Hi, I had a problem while running my application. Early morning my application run perfectly. suddenly system was struck and re-stared system. from then getting the following errorCould not load file or assembly 'MessageMedia' or one of its dependencies. The parameter is incorrect....

unable to load assembly

22 Sep 2013 by a.pkumar

yes got it, i don't no what the problem. got ddl's from other system and executed application, working fineThanks

How to install Facebook -Version 6.1.2

15 Oct 2013 by a.pkumar

I am getting below ERROR IN PACKAGE MANAGER CONSOLE SCREEN when i type the PM >Install-Package Facebook -Version 6.1.2 COMMAND-----------------------PM> Install-Package Facebook -Version 6.1.2 Install-Package : The remote name could not be resolved: 'az320820.vo.msecnd.net'At line:1...

How to get friends list from facebook

17 Oct 2013 by a.pkumar

Hi Experts,I Searched in google i found code but it shows error

Extract Resources from an Assembly

18 May 2014 by a_pess

Demonstrates how to retrieve resources from a .NET Assembly in Visual Basic .NET

Create job to export Stored Procedure daily

27 Nov 2012 by Aadhar Joshi

Creating job in sql server which automates taking backup of all stored procedures and functions in physical drive.

SQL-Server-2008

SQL-Server-2005