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.NET 3.5

.NET3.5

Great Reads

Cryptographic Interoperability: Keys

by Jeffrey Walton

Import and export Cryptographic Keys in PKCS#8 and X.509 formats, using Crypto++, C#, and Java.

Calcium: A Modular Application Toolset Leveraging PRISM – Part 2

by Daniel Vaughan

Calcium provides much of what one needs to rapidly build a multifaceted and sophisticated modular application. Includes a host of modules and services, and an infrastructure that is ready to use in your next application.

WPF: If Carlsberg did MVVM Frameworks: Part 6 of n

by Sacha Barber

It would probably be like Cinch, an MVVM framework for WPF.

A Project Dependency Graph Utility for Visual Studio 2008

by Marc Clifton

Review your project dependencies.

Latest Articles

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.

Working with MSDTC...

by Sufyan S Jabr

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

Multi RDP Client .NET - A Simple and Friendly User Interface for You to Work and Navigate Easily Through a Tabbed RDP Remote Window

by Jayson Ragasa

Multi RDP Client .NET is used for managing your RDP connections. It allows you to Import/Export .RDP files, disconnect all connection at one click, and connect all your servers at one click as well.

Using a Resource Dictionary in WPF

by Rahman Masudur

Few tricks about using a Resource Dictionary in WPF

All Articles

.NET 3.5

Overriding App.Config Settings for Multiple Objects

17 May 2008 by #realJSOP

One method for loading common and object-specific data from your app.config file.

Render Text On A Bitmap (and other stuff)

28 Sep 2008 by #realJSOP

Put text on a bitmap, make your winform app go full-screen, and say hello to some simple LINQ code.

Scheduling Future Dates

1 Oct 2008 by #realJSOP

Implement repetitive tasks at consistent intervals

User Login For WinForm Applications

2 Oct 2008 by #realJSOP

Discusses windows authentication and application-specific authentication for WinForm applications

CodeProject Article Scraping

11 Dec 2010 by #realJSOP

Scrape the My Articles page here on CodeProject to keep an eye on your articles.

Share User Settings Between Applications

17 Dec 2008 by #realJSOP

A not-so-dotNet way to allow multiple programs to share a single settings file

Keep Your InkJet Print Head Clean

4 Jan 2009 by #realJSOP

A utility that you can use to "exercise" your inkjet printer without wasting a lot of ink or paper

Wpf - Removing resourcedictionary creates problem

12 Jan 2010 by #realJSOP

If you remove the resource file, your *application* won't find it. I think your ownly recourse is to merge the resource file in each window that needs it (and take the merging out of your app.xaml file).

Initialization of "StoredProcedureDeadlockRetries" Exception

17 Jan 2010 by #realJSOP

It looks like you're leaving a message for someone specific, and probably in a forum for an article. Nobody has any idea what you're talking about.

Index was outside the bounds of Array

21 Jan 2010 by #realJSOP

USE THE DEBUGGER.It would have allowed you to discover that there is only one item in the rdr object. Using a value greater than 0 will almost always result in an exception.

SQL-Server-2005

How to create a single executable file in Visual Studio 2008 ?

23 Jan 2010 by #realJSOP

If you're talking about merging dll files and exe files into one executable, google "ilmerge", and you'll be off and running/. It can also merge app.config files.

How to implement a Progress Bar with multiple instances of application ?

24 Jan 2010 by #realJSOP

Why don't you pass all of the selected files on the command line and start a transform thread for each one (use a thread pool). Then, you could have a progressbar for each file, or just one that somehow shows the combined progress. I imagine you've already written a shell extension that adds a...

Targeting both 32bit and 64bit with Visual Studio in same solution ...

25 Jan 2010 by #realJSOP

You can build for one environment at a time. Select x86, and build. Then, select x64, and build.When you look in the bin/debug (or release) folder, you'll see two appropriately named sub-folders "x86" and "x64".

How to block a CD after First Read

5 Feb 2010 by #realJSOP

There are several issues with your "plan".0) Not everyone has auto-run turned on for removable media (for instance, I don't).1) You can't "disable" a particular CD. It's simply impossible to do. 2) Your only recourse is to have the application register its media when it's run. This...

WPF UserControls - Running public void in Parent Window?

19 Mar 2010 by #realJSOP

If it were me, I'd change the protection level (if necessary) on the internal UserControl, and then subscribe to the appropriate event from the main form.private void Load(){ this.userControl.innerUserControl.Button.Click += ....}I know, it's not very OOP-centric to expose...

How to export data from WPF toolkit datagrid to Excel

23 Mar 2010 by #realJSOP

I found this exchange with google:WPF's DataGrid is a bit different than ASP.net's DataGrid. One way you can export to excel with WPF's DG is to use the DataGrid.CopyToClipboard command which makes a copy in a CSV, html, and text format. From there you can either just create a csv file or...

WPF/C# - Scanning a Directory for Files?

30 Mar 2010 by #realJSOP

Look at the DirectoryInfo.GetFiles() method. It does exactly what you need (returns an array of strings that represents the file names that exist in the folder in question.

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.

check bit rate of audio file

28 Apr 2010 by #realJSOP

What kind of audio file? If it's a MP3, how do you propose handling variable bit rate files?

How to Use Link Button in WPF

30 Apr 2010 by #realJSOP

Did you try googling "wpf linkbutton"? You would have gotten thousands of hits.

System Troubleshooting Error Tracing using C#

4 May 2010 by #realJSOP

This is - well - impossible. The only way you can resolve the issue is to force the machine to start in safe mode, and you can only really do that as it's booting up.At that point, you can manually examine the various system logs and try to find the issue.In short, writing an app to...

c# moving servo motors problem

13 May 2010 by #realJSOP

liorogi wrote:should i use a new thread for the motor movement?You mean you haven't actually tried that yet? Most of us have no experience with this kind of controller stuff, so we can't comment.

TO show i/4 part of piechart in .net3.5 chart control

3 Jun 2010 by #realJSOP

Can you make the rest of the pie chart transparent?

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.

Customize Progress Bar

7 Jun 2010 by #realJSOP

I googled the phrase "asp.net progressbar", and found an article right here on CodeProject:ASP.NET ProgressBar Control[^]

C#, Visual Studio Express 2008, OpenXML SDK, and multipage word document

9 Jun 2010 by #realJSOP

Why don't you create a master copy of the (empty?) table, clone it when you need to, and add the cloned table to the document. Not knowing exactly why this is a problem, I can't suggest anything better.You could also just create a class that builds the table for you with the data you...

File upload

11 Jun 2010 by #realJSOP

It depends on how you're uploading it. If it's via windows sockets or the query string, you have to write code that will open the file in such a was as to overwrite the file if it already exists.If you're doing it via FTP, (I think) you have to delete the file on the remote machine...

WEBSITE RUTIME ERROR

11 Jun 2010 by #realJSOP

It's pretty obvious what the problem is - you simply have to read the error message. It's telling you that....Oh look! Something shiney!

Efficient Way to Crawl through Web Sites or Better Way to Download WebSite Content

17 Jun 2010 by #realJSOP

You have more control over what's happening with method #2. That's the one I would choose. However, don't forget to add the requisite try/catch/finally block to handle any exceptions that might occur.

search according to firstname,lastname,city,state,country, or emailid

17 Jun 2010 by #realJSOP

You're not going to be able to conduct a meaningful search if you don't require a certain pattern for the search criteria.I would require the user to type something like "first=john;last=simmons" in order to find someone named "john simmons".You could extend this to be "first=john" +...

how to install silverlight in vs 2008

28 Jun 2010 by #realJSOP

As far as I know, you can develop for any version of Silverlight in VS2008, you just have to install all of the required tools and libraies to do it. A little googling gave up this link:http://www.silverlight.net/getstarted/[^]

To show positive and negative values

30 Jun 2010 by #realJSOP

Set the minimum value and the maximum value on the axis. Since you didn't say what chart control or what platform, that's the best I can do for you.

.NET Dynamically Invoke Service / Web Service

19 Jul 2010 by #realJSOP

Your question makes little sense. If you are asking if you can get aweb serive's settings from a database in order to communicate with the web service, yes you can, but only if that database can be accessed without the use of the web service. Typically, a web service can only be accessed...

web_development

How to lock button in vb.net

29 Jul 2010 by #realJSOP

You could just eat the event if the button is locked. However, making the button disabled is the standard indisutry way of saying "you can't use this control right now". If you don't like the grayed-out appearance, you could always completely hide them, but I can tell you from a number of...

How do u create custom controls?

22 Aug 2010 by #realJSOP

Just start a UserControl project in Visual Studio. It will provide everything you need to start.

How to overcome Memory leak problem in .Net(Windows Application)

3 Sep 2010 by #realJSOP

Well, you're pretty much on your own because we can't possibly help you with memory leaks in your code because we don't have a copy of it. It's up to you and your ability to make use of the debugger.All you can do is become familiar with how memory is used in a .Net app, where potential...

Accessing MDIForm from Child Form

16 Sep 2010 by #realJSOP

You could also set up a global static class that contains an event that fires when a property is changedand handle that event in the desired form.

Impersonate a user on a PC that's in a workgroup connected to my domain

27 Sep 2010 by #realJSOP

If the computer on which you're performing the impersonation is a member of a domain which does not trust the domain of the user account you are trying to impersonate, then the impersonation attempt will fail. So, set up a trust, and see if it then works.

Impersonate a user on a PC that's in a workgroup connected to my domain

27 Sep 2010 by #realJSOP

If the computer on which you're performing the impersonation is a member of a domain which does not trust the domain of the user account you are trying to impersonate, then the impersonation attempt will fail. So, set up a trust, and see if it then works.For more info, try googling...

Create and Share (with a client app) a Random Encryption Key

5 Oct 2010 by #realJSOP

One way to create a completely random encryption key, and sharing it with a client application

.Net Obfuscator Annotations

12 Oct 2010 by #realJSOP

Most (if not all) enterprise-capable obfuscators are retail products. You may as well stop looking for "free" stuff now, before your head explodes.

Best methods to creating an extensive file listing of the entire computer

28 Oct 2010 by #realJSOP

1) Yes, you can iterate network drives as well. You may have to use WMI to get the shares, but it should be possible.2) I don't know if the best or not, because I've never wanted to do anything like this.3) I would use linq to write it to a xml file4) Just, ummm, encrypt it....

Number to word conversion

1 Dec 2010 by #realJSOP

There is no built-in functionality for this. For what it's worth, this question (or some variation of it is asked here about once per month or so. Just use the search functionality on the site, and you'll find them.

Security Agency

5 Dec 2010 by #realJSOP

0) This question is unanswerable, other than to recommend that you hire a programmer.1) Don't use your email address as a user ID. It's beyond stupid...

SQL-Server-2005

C#.Net Saving Critical Data

14 Dec 2010 by #realJSOP

First, I wouldn't wait for a failure. I would write the current transaction to a file BEFORE starting to process it. Even better, I would log EVERY tarnsaction in a database somewhere. That way, you can just pick up at the most recent failed/incomplete transaction in the database, and go from...

small project using c#,asp.net

23 Dec 2010 by #realJSOP

Find a program that you like, and write a program that duplicates its functionality and appearance.

Regarding remove paddings in tags in asp.net

3 Jan 2011 by #realJSOP

It's actually the table that controls this:

cts types in .net

27 Jan 2011 by #realJSOP

Homework is assigned because your instructor wants you to learn something. One of the keys to being a good programmer is not necessarily immediately knowing the answer, but knowing how to FIND the answer. Instead of taking the easy way out and waiting for someone to provide you with the answer,...

Migrate website from IIS 5.0 to IIS 7.0

9 Feb 2011 by #realJSOP

0) Copy the files from one server to the other.1) Fix any issues that come up.Seriously, it should be just that easy, but we have no idea what your requirements are. EVERY migration effort is different.

RealTime Multithreading in Using Multiple CPU

17 Feb 2011 by #realJSOP

.Net manages CPU use on its own, and you don't have to do anything. Just write your code, and move along.

How can I observe changes to an underlying array?

23 Feb 2011 by #realJSOP

You could run a thread that simply watches the array for changes, and then re-bind the array to the control when a change is detected.Or, you could run an array watcher thread that automatically moves the array into an observable colletion , and let the natural WPF binding mechanism do the...

How can I observe changes to an underlying array?

23 Feb 2011 by #realJSOP

I suppose it's pretty safe to assume that you can't know approximately what block of array elements is most likely to change, so...You could kind of load-balance by divvying up index blocks among several threads. Since the number of elements is variable, I would setup some way to determine...

How to set global DateTime in .net

3 Mar 2011 by #realJSOP

Are you asking for a global variable that holds the current date/time?Any time you need the current date/time, just do this:DateTime now = DateTime.Now;

C# splitting audio to left or right channel

16 Mar 2011 by #realJSOP

This library might help:nAudio on Codeplex[^]

Webservice receiving null data

23 Mar 2011 by #realJSOP

The only thing I can suggest is that you make sure your client app is connecting correctly and that you're actually sending the data that you think you're sending.

Want to make a program active only when a USB stick is plugged in..

24 Mar 2011 by #realJSOP

Personally, I would never use a piece of software that required a dongle be plugged in so that it would run. You'd be better off having it verify itself over the internet, which could be easily configured to allow the software to run a certain number of times without an internet connection...

why we use flag in .net

24 Mar 2011 by #realJSOP

It's also a possible attribute for enumerators :[Flags]public enum MyProperties { None=0, Left=1, Right=2, Center=4, Top=8, Bottom=16, Middle=32, All=64 }Go here for a complete example (and scroll down to the section labeled Enumeration Types as Bit...

To redirect the session value

5 Apr 2011 by #realJSOP

As far as I know, you can't specify a web page as the source for an image unless you set that page's content type to an image. Since it's probably not advisable to change the content type of an existing page, you should consider getting the actual images that you want to display, and putting...

invalid character in path.micorlib

15 Apr 2011 by #realJSOP

It means that the file you're trying to access from your code has an invalid character in the path name. I'm only guessing because you provided no code or other intelligible info.

Text box is not working in WPF Popup

20 Apr 2011 by #realJSOP

Why are you defining grid rows and columns when you only have one of each? That's just pointless. Also, the AcceptsReturn property is only useful if it's a multi-line text box. Finally, your problem is caused by the fact that you're trying to use the Popup control in a way that is nt...

Is it possible to open windows form in windows services in vb.net?

29 Apr 2011 by #realJSOP

No. If an application requires an interface, you can't open it from a Windows service (at least not in Vista/Windows 7). In XP (and earlier), you can set the service to "interact with the desktop", and even then, that will only work when a user is logged in.

how to publish ASP.NET 3.5 website in IIS server

3 May 2011 by #realJSOP

Wowser! I googled "asp.net publish site", and got back over 7.3 MILLION hits! That is an amazing amount of resources in which you yourself can conduct research. Give it a try.7.3 MILLION results[^]

executing an exe within an WPF application.

5 May 2011 by #realJSOP

You can't run another application in your app's window - well, technically you can, but only if your application is a shell for the OS (kinda like the fact that the Windows desktop is actually Windows Explorer running in full-screen mode, or a VM client that runs a completely different OS).

Crud operations using entity framework

11 May 2011 by #realJSOP

The best way to find sample code is to google itresults for "CRUD entity framework LINQ"[^]

how to use login form

17 May 2011 by #realJSOP

This Codeproject tip/trick may help you:Multiple Subsequent "Main" Forms in C# Apps[^]

WPF Application with Login Page

13 Jun 2011 by #realJSOP

How are you going to "learn about WPF" if we do the work for you? You already have the requirements. Go forth, and write code. If you need help with WPF, google is a great place to conduct research. If you have a *specific problem* with code you've already written, come baclk and ask a...

C# use ado.net connection via a text file and read the contents of the file.

1 Jul 2011 by #realJSOP

You simply can't read that much data at once. You're going to have to be more selective iin the data returned from the query. We have a web page that returns no more than 250 records at a time from a 4-million record table.

Why do i get this error i want the reason

18 Jul 2011 by #realJSOP

Change your

Interface and Class issues

1 Aug 2011 by #realJSOP

Understanding Interfaces and Their Usefulness[^]What is an Interface?[^]Abstract Class vs Interface[^]I could go on, but you could just as easily have googled ".net interface" yourself and gotten the same 326 MILLION results that I did.

How to handle textbox's load event

12 Aug 2011 by #realJSOP

The Form has a Loaded event. You can use that handler and enumerate through the controls and if you find a textbox, do whatever you need to do.

Microsoft .net frame work Unhandled exception

14 Aug 2011 by #realJSOP

You're missing some files. Go here [^]

How to set listview column's visiblity

18 Aug 2011 by #realJSOP

You could always change the column's width to 0.

problem in running an exe

23 Aug 2011 by #realJSOP

Are you storing the config file anywhere other than the user's app data folder?

C# communication across machines using services

2 Sep 2011 by #realJSOP

I wrote an article that kinda does that.Synchronicity - A Folder Synchronizing Application[^]

WCF launching exe that dies halfway. Why?

8 Dec 2011 by #realJSOP

Assuming you've implemented an appropriate level of exception handling which isn't showing you where the problem might be...Write diagnostic info to the system log (or a text file). This is going to take a while because unless you have an idea of where/why it's breaking, you're doing to have...

SQL-Server-2005

How can modify this code to display the signature of sender in listbox

18 Dec 2011 by #realJSOP

How are we supposed to help you? None of the objects used are .net framework objects, so you must have gotten this code from an article or some other library. If it WAS a CodeProject article, go BACK to the article, and ask the question in the article forum area at the bottom of the page.

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...

Retrieving a method name from a DB and using that method as a delegate

13 Mar 2012 by #realJSOP

I wouldn't store a method name in the database. I would store a (numeric) indicator that tells the code which method to use for the delegate. That way, the method name can be changed (if desired/required), and the database doesn't need to (and shouldn't need to) know about it.

SQL-Server-2008

Retrival of XML in Windows application in Microsoft Visual Studio using C Sharp Dot Net

1 Sep 2011 by $aikumar$ Cilamkoti

How to Retrive the XML sheet data into windows application in c#.net From XML Form

Writing a Total Commander plug-in in Visual Basic (or C#)

8 Mar 2009 by Đonny

This article introduces and describes a framework that allows the creation of managed plug-ins for the Total Commander file manager.

How to Utilize Session Variables

31 Jan 2009 by -- Abhi --

An article on how to utilize session variables

Grid View with slide show in C# .net

21 Sep 2010 by .Net Dada

Hi Everyone,I want to implement the slide show in c# .net with grid view control.Right now I m fetching the data from the database and bind in the Gridview with the page size=1 and then giving the paging to display next.Now i want to do same thing but no with the paging but after...

Grid View with slide show in C# .net

22 Sep 2010 by .Net Dada

I had just retrieve the data from database and bind it in the grid view with page size =1 and add the next previous buttons to show remaining records.

Grid View with slide show in C# .net

25 Sep 2010 by .Net Dada

Hey thank you friends, finally i did it and get what i want.Thank you for your support. :-D

Convert code behind from vb to c#

17 Dec 2017 by .Net Dada

Hello Everyone,I have project which is in asp.net 3.5 and the code file are in the vb.but i want to convert that vb code into the c#.Is there any s/w that convert whole project or individual file from vb to C#.

What is the use of CLR in .net?

26 Aug 2013 by 007himanshu

CLR is Excutive environment of .NET Applications..Net source code converted into MSIL code and then CLR converts machine understanable code by using JIT compliers.CLR takes care about of Code Access Security,Gerbage Collector,Converting compile code to mechine understable...

Which option to choose while running application in ASP.NET

23 May 2011 by 0905v49

If click on modify then debug ,trace and other entries will go to web config .If u click on second option you can run the application without debugging as it is unable to set debug=true in web config

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...

which of the statement are true about the passport Authentication?

3 Dec 2009 by 0x3c0

This seems like homework. What have you done to narrow down your choices? There's also an article on Wikipedia[^] which may help you

Hosting 8bf Plugins in a .NET Application

27 Dec 2015 by 0xC0000054

A C# library to host Photoshop-compatible filters in .NET 2.0 and later

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.

Linear Contrast Stretch of Grayscale Images

27 Apr 2011 by 198843

I need this article code. Please help me.

How to get running application name in c#?

20 May 2011 by 2000 P

Hi, How can we get all the running applications name in an array using c#?I can get all the processes but I want application names in Windows task manager-->Applications window.Thanks in Advance.

How to handle multiple version of office simultaneously?

7 Jun 2011 by 2000 P

Hi, Is there any good reference available for this kind of scenario? If multiple version of Word or PPT opened, code should able to handle the automation between the documents irrespective of their version. I tried interop assemblies which work with one version at a time. But in case...

connect to network system using c#.net

21 Jul 2011 by 204.sharma

Dear All, i want to know is there any way to get all shared drives information of a network system.i copying my data from one system to another but it work properly when i open target system using run command but if i close the running system window it gives an error like "login failed...

Version not changing

21 Jun 2011 by 2irfanshaikh

Check this.http://bloggingabout.net/blogs/vagif/archive/2010/04/24/using-t4-templates-to-manage-assembly-version-information.aspx[^]

Adding reputation rows in list usinc C#.net

22 Jun 2011 by 2irfanshaikh

check this Link[^]

Real-Time Multilingual WPF Demo

29 Jul 2008 by 2sky

Translate a WPF User Interface using the Google AJAX Language API in real-time

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 ...

how to use exception handling in .net application

6 Feb 2010 by 4277480

Centralised Exception Handling in C# Windows Application[^]