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Login through cookies

by ASP.NET Community

Different forums are filled with the questions regarding how to manually implement cookies for login or in other words how to implement "Remeber me"

Displaying the files for a specific folder and allow the user to download them.

by ASP.NET Community

This is how to to list the files in a specific directory and allow the user to download the files.ASPX:

Who caused postback?

by ASP.NET Community

How to check if a specific control caused postback?Let's say you have a button ( btnAdd ) among other controls...To check if it has just caused

Building a color selector control

by ASP.NET Community

This article will show you how to create a color selector control that will looks like the image in the right side. The first thing to mention

Latest Articles

Diving into OOP (Day 5): All About C# Access Modifiers (Public/Private/Protected/Internal/Sealed/Constants/Static and Readonly Fields)

by Akhil Mittal

Access modifiers (or access specifiers) are keywords in object-oriented languages that set the accessibility of classes, methods, and other members. Access modifiers are a specific part of programming language syntax used to facilitate the encapsulation of components.

Making server side decision based on client side JavaScript

by ASP.NET Community

Many of you might have come across the situation where you need to making server side discussion based on client side JavaScript confirm message

Building a color selector control

by ASP.NET Community

This article will show you how to create a color selector control that will looks like the image in the right side. The first thing to mention

RDLC Report Hide Export Option

by ASP.NET Community

protected void ReportViewer1_PreRender(object sender, EventArgs e) {DisableFormat(ReportViewer1, "Pdf"); }protected void

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Protected

Cannot access protected member in template

12 Jul 2013 by David O'Neil

VS 2012 gives an 'error C2248: ... cannot access protected member declared in class...' in the following minimal code stripped from a complete project. VS 2008 has no problems with it, and executes as expected.The line right before the issue calls the protected member in question, and no...

Cannot access protected member in template

13 Jul 2013 by pasztorpisti

Unfortunately I have no VS2012 at hand but I have a g++ that has always been my friend when I wanted to check whether a piece of code follows the standard or not. Using my VS2010 and g++4.5 (cygwin) I have put together the following example program that may serve you with some useful...

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

24 Mar 2011 by Eduard Keilholz

Hey!There are a couple of solutions available to accomplish that. If you want a real secure solution, you'll need to have USB-Dongles with a public & private key pair. You may for example use this[^] hasp.If you don't want a real secure solution you can develop something yourself (for...

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...

Cannot access protected member in template

13 Jul 2013 by Matthew Faithfull

The rules did change but I don't think that's the problem. I think it's just that Microsoft started applying the existing ones.It's a tricky case but I think the problem can be summarized as trying to use a protected member function pointer as a template parameter to a function that does not...

C# code behind file not recognising change in variable

6 Mar 2014 by ZurdoDev

This is because webforms do not work like windows forms. When you set a variable it is only valid for that connection. When your page posts back all of your C# runs and then a bunch of html is sent to the client and you are disconnected. So, any variables you had set in your class are lost. ...

Encrypt database string VB.NET

9 Jul 2017 by Dave Kreskowiak

A little Google goes a long way: encrypt connection string in app.config - Google Search[^] There's tons of information out there on it.

can changing file's file extension protect your computer?

7 Feb 2012 by Jonathan [Darka]

A virus can infect any file which can be executed, the file extension is not important.Each executable file can be identified no matter what extension you give it, if your proposing a whole new executable format then that would be a whole lot of work....Additionally, changing the...

can changing file's file extension protect your computer?

7 Feb 2012 by Manfred Rudolf Bihy

I'm afraid that is not going to happen. A file can be opened and analzed by a virus to discover it's true purpose. Most files contain some headers that betray to the virus what they really are. For example by renaming a dll or an exe file to a file with a txt extension it could still be found...

Running an instance of IE in Protected mode

10 Jul 2013 by KarstenK

this should be an example for your task:http://msdn.microsoft.com/en-us/library/bb250462(v=vs.85).aspx#dse_stlip[^]Your find the registry for this settings and change it before launching the IE...

How can I make vlcplayer play in a control of a C# winform?

17 May 2014 by gggustafson

See "nVLC" (http://www.codeproject.com/Articles/109639/nVLC)

can changing file's file extension protect your computer?

7 Feb 2012 by MR. AngelMendez

hello, I have an idea for a project and I would like to know a few things before I start. My operating system is windows 7 and my project's language is going to be in C#.One, are viruses able to manipulate, damage or interact with files if they have a custom extension? for example lets say...

how to protect online pdf file from printing, copying ... etc

3 Apr 2012 by bbirajdar

The only way is to not to make it online....Because you cannot stop the user from hitting the 'Print Screen' key on the keyboard or from hitting the 'Print' menu in the browser , neither you can stop him from saving the PDF to his computer using the 'Save As' menu option and copying...

Allocating RWX memory from kernel

9 Jun 2012 by patrik polakovic

Hi, I am developing driver for automated Win 7 environment. I need to execute some commands within given interval. I would like to achive this using queuing APC routine from my driver to user mode process. But APC fails due to executing code from RW only memory allocated using IoAllocateMdl,...

Running an instance of IE in Protected mode

9 Jul 2013 by Mohammed Essa

Hi Guys, I have an application written in C++ and in the code there is an instance of IE that is created, however I need that instance to be ran in protected mode or else the network doesn't see it as trusted. Is there a way in C++ or a script that I can run to create an instance of IE...

Is there any thing call EFI interrupts? and switching to VESA in 64Bit?

2 Oct 2013 by sid2x

I was just programming some stuff in ASM, until I got to know that VGA is limited to 640x480 resolution, (I hate VGA), then I was thinking about VESA/VBE, since in OS Development people use VESA more that VBE (To what I have seen), I wanted to switch to VESA, but I couldn't find anything...

Login through cookies

11 Oct 2013 by ASP.NET Community

Different forums are filled with the questions regarding how to manually implement cookies for login or in other words how to implement "Remeber me"

Displaying the files for a specific folder and allow the user to download them.

11 Oct 2013 by ASP.NET Community

This is how to to list the files in a specific directory and allow the user to download the files.ASPX:

Who caused postback?

11 Oct 2013 by ASP.NET Community

How to check if a specific control caused postback?Let's say you have a button ( btnAdd ) among other controls...To check if it has just caused

Building a color selector control

12 Oct 2013 by ASP.NET Community

This article will show you how to create a color selector control that will looks like the image in the right side. The first thing to mention

Access Modifiers

11 Oct 2013 by ASP.NET Community

What is Access Modifier?Objects in .NET are created from a class, struct, etc. Thesedefinitions, as well as the properties, methods, or events

WCF Rest service Dependecy injection with Unity and EF4 CodeFirst

11 Oct 2013 by ASP.NET Community

Assuming you already have your domain model and repositories implemented and unity wired (if you are missing this part, let me know and i'll add the

Custom Gridview Paging and Sorting with Vb.net

11 Oct 2013 by ASP.NET Community

Sometimes you need custom paging and sorting of a Gridview. So I wanted to share the ASP.NET code for all.Write this code on Client Side (Aspx

how to send email with attachment from local machine

11 Oct 2013 by ASP.NET Community

using System.Net.Mail;public partial class SUPER_mail : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { }

How to enable users to download office documents from your ASP.NET site

11 Oct 2013 by ASP.NET Community

A typical request from a customer or user of your website is to enable the upload and download of documents. The could be spreadsheets, presentations

How to use a countdown timer inside Repeater ItemTemplate

11 Oct 2013 by ASP.NET Community

HiThis a common task for Auction bid, events, promotions, project deadline etc.For this sample we need to create a sql table and one stored

Encrypt & Decrypt ConnectionString Section

11 Oct 2013 by ASP.NET Community

Encrypt & Decrypt ConnectionString SectionSometimes we need to secure ConnectionString to prevent anyone can knows it. whatever your purpose from

connectionstring

Flyweight Pattern

11 Oct 2013 by ASP.NET Community

The flyweight pattern is used whenever you have large amount of small objects that share common information. The use of the pattern reduces the

Asp.net 2.0 Cross Post backing

11 Oct 2013 by ASP.NET Community

This is new Concept Introduce in Asp.net 2.0, This is used to Passing the values from one page to Certain page using PostbakUrl property for Button,

Print Current Page and Print All Pages of GridView

11 Oct 2013 by ASP.NET Community

Protected Sub PrintAllPages(ByVal sender As Object, ByVal e As EventArgs)GridView1.AllowPaging = FalseGridView1.DataBind()Dim sw As New

Programatically Change Page Headers (Title, Stylesheets, Meta)

11 Oct 2013 by ASP.NET Community

C#protected void Page_Load(object sender, EventArgs e){ // Change the title Page.Header.Title = "My Content Page Title"; // Change

Log application error details in windows event viewer

11 Oct 2013 by ASP.NET Community

Global.asax, is the global file in the web application, which offers application level events to be registered. There are many of the events in this

Add Javascript inside head element of page from code behind

11 Oct 2013 by ASP.NET Community

Howto: Add JavaScript inside Head element from code behind Here is the sample how you can do that.1) Add some JavaScript inside page header

RDLC Report Hide Export Option

11 Oct 2013 by ASP.NET Community

protected void ReportViewer1_PreRender(object sender, EventArgs e) {DisableFormat(ReportViewer1, "Pdf"); }protected void

is it possible to create password protected pdf file using visual basic6.0?

18 Feb 2014 by kk2014

Hello,is it possible to create password protected pdf file using visual basic6.0?Thanks

is it possible to create password protected pdf file using visual basic6.0?

19 Feb 2014 by Richard MacCutchan

Yes it is possible, but not simple. You would need to get a copy of the PDF specification from ADOBE (which is free), and learn how to write all the PDF control data. You would be better upgrading to VB.NET and using a library such as iTextSharp[^].

How to create password protected pdf file in vb6.0

21 Feb 2014 by CHill60

The reason I didn't respond to your comment is because you didn't use the Reply button against my comment so I didn't get any notification.However, I note that you reposted this question and someone has answered it is it possible to create password protected pdf file using visual...

C# code behind file not recognising change in variable

6 Mar 2014 by Grant Weatherston

I have a code behind file that on page load sets up a form. this form has a dropdownlist to select which form you'd like to view.When selecting a different view a onSelectedIndexChanged method is called, i can see this is being called. When the index changes it sets a global boolean...

What is the difference between private and protected in C#?

1 Jan 2019 by Am Gayathri

What is the difference between private and protected functions in c#?Private : This can access only within the class. This function can access only within that class. We can not call this function using objects of the class.Correct ?Protected: I dont have any idea.Public: This can...

What is the difference between private and protected in C#?

2 Feb 2015 by Amresh Bahadur Singh

see here your Answerhttp://www.c-sharpcorner.com/uploadfile/puranindia/what-are-access-modifiers-in-C-Sharp/[^]

What is the difference between private and protected in C#?

2 Feb 2015 by Pranay Rana

Protected - Its means that type is assisible with in your class and class which is deriving it.example public class A{ protected int prop1 {get;set;}//accessible in class }public class B :A{ //this class can access prop1}public class c{ //as this class is not...

What is the difference between private and protected in C#?

2 Feb 2015 by Mathew Soji

Please read below.Diving into OOP (Day 5): All About C# Access Modifiers (Public/Private/Protected/Internal/Sealed/Constants/Static and Readonly...

mvc or asp.net file prevent download block

16 May 2015 by Dave Kreskowiak

If the files are available to download to logged in clients, you simply authenticate the request to download the file before you send the file. This only works if you are using some form of authentication.If the clients are not allowed to download the files at all, remove them from the site....

How to unprotect single column of exel sheet when whole sheet is protected

10 Apr 2016 by Krishna Chaitanya Bezawada

Hi, I have written a program which writes respective data from xml files to excel sheet, after writing the data, the program will protect the entire excel sheet with a password. So now i should protect entire excel sheet, but except one column. I need help of how to do that.As per the...

How to unprotect single column of exel sheet when whole sheet is protected

1 Apr 2016 by Patrice T

Did you try:oSheet.Cells[CurrentRow, CurrentColumn].Locked = False;

What can be the maximum length of motherboard serial number? In bits or bytes?

4 Apr 2016 by Biinny

Dear Experts,I am working on license protection technology, in which i need to take/pass unique identifier of PC/Laptop/MAC. I choose Motherboard serial number. Is it wise option to take as unique id?If not then please suggest. If yes then i need to know that how much long it can...

machine-learning

Locking files on folder with external tools or native components - windows

25 Apr 2016 by Member 12485168

Hi!I'm a software developer, and i've been stuck on this problem for days, i've done so much googling but i found nothing about this....I'll try to describe this problem as easy as i can.I have 2 files, "f1" and "f2" into my directory "c:\foo\dir1\"I want to avoid any possible...

Uninstalling protected service.

5 Dec 2016 by Member 8620759

The requirement of my project is to install and run my service as protected and uninstall this protected service.I have tried implementing the protected anti malware service referring the following msdn...

Encrypt database string VB.NET

11 Jul 2017 by Rajan Pandit

Hai, I am developing a software for school using VB.Net.... my task is that I want to create a protected Database Connection Sting. means nobody can check what is my database string. Is there any tool or any methods which can help to accomplish this task.. I saw many software ever older version...

Encrypt database string VB.NET

9 Jul 2017 by RickZeeland

If you want to protect your connection string it would be better not to store it in the .config file. If you keep the connection string in code and use an obfuscator like Dotfuscator, it will be protected better. Even better is to use encryption, see: Encrypting and Decrypting Strings in Visual...

Encrypt database string VB.NET

11 Jul 2017 by Atlapure Ambrish

You can use an algorithm to encrypt the connectionstring and use an encryption key to encrypt it. You can store it in your config file after it is encrypted and when needed for any database operation, you can decrypt it using same encryption key and use it. The key used to encrypt can be defined...

Encrypt database string VB.NET

11 Jul 2017 by mgoad99

I have done this a few times. Its a pain to figure out the first time. Basically, there is a .net command line tool that you can use to encrypt sections of a web.config file. Now, you have to encrypt the file on the pc/server it will reside on. This is because the encryption is done using...

Remove code duplication for virtual class members

20 Oct 2018 by _PitrakSarkar_

I have got myself into a strange issue now. Ill write a really simplified version of the same. class Base { public: virtual int func1()=0; virtual int func2()=0; protected: int n; }; class der1: public Base { //implements the virtual functions of the base and uses the protected data members of...

Remove code duplication for virtual class members

20 Oct 2018 by OriginalGriff

Derive a third class from Base which handles the "common" implementation: class Intermediate: public Base { ... } Then derive your classes from that: class der1: public Intermediate { ... }; class der2: public Intermediate { ... }

Diving into OOP (Day 5): All About C# Access Modifiers (Public/Private/Protected/Internal/Sealed/Constants/Static and Readonly Fields)

15 Jul 2015 by Akhil Mittal

Access modifiers (or access specifiers) are keywords in object-oriented languages that set the accessibility of classes, methods, and other members. Access modifiers are a specific part of programming language syntax used to facilitate the encapsulation of components.

Advanced Classes in C

29 Jun 2013 by Ghosuwa Wogomon

An example of a clean way to implement classes in C

regular-expression

Deleting protected folders in Windows 7

25 Mar 2011 by Pascal Ganaye

Deleting protected folders in Windows 7

Making server side decision based on client side JavaScript

14 Jan 2014 by ASP.NET Community

Many of you might have come across the situation where you need to making server side discussion based on client side JavaScript confirm message

What can be the maximum length of motherboard serial number? In bits or bytes?

4 Apr 2016 by Sascha Lefèvre

Please take a look at this article, it will cover all your questions: Searching for a reliable hardware ID[^]Short version: The only reliable source for a hardware-ID is the serial number of a harddisk.

machine-learning

What can be the maximum length of motherboard serial number? In bits or bytes?

4 Apr 2016 by Dave Kreskowiak

There is no standard for serial number lengths for any device. There is also no guarantee that the device you're talking about even has a serial number accessible to your code.

machine-learning

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

24 Mar 2011 by Xonfused

Hi, for my future programs i would like to learn how can i protect my applications. My idea is that when i install my program on the client computer, the program should only work when a specific USB is inserted on the same computer (that contains some.. hmm files? (later more)). Lets say i have...

What can be the maximum length of motherboard serial number? In bits or bytes?

4 Apr 2016 by OriginalGriff

See here: Win32_BaseBoard class (Windows)[^] buit all it says is "string" so it's really up to the manufacturer (as you'd expect) rather than a defined length.You probably need to see this as well: windows - Motherboard ID - WMI C++ - Reliable? - Stack Overflow[^]

machine-learning

Encrypt database string VB.NET

10 Jul 2017 by Rajesh Pandya

Encrypt your connection string and then use it in your app.confing. For encryption check this link:[^]

How to copy-protect a page using JavaScript in ASP.NET

20 Nov 2011 by Sayed Irfanul Hasan

How to protect a page from text copying using JavaScript in ASP.NET.

Unstoppable and unmodifiable windows service in c++ or c#

19 Jul 2013 by Member 4562000

Want to create a windows service which is fully protected from all users even administrators. Service like ekrn.exe from eset security which is fully protected from all users. User cant even modify recovery options from service properties. Please help.

how to protect online pdf file from printing, copying ... etc

3 Apr 2012 by ASakr

Hi,Am working in knowledge management solution using asp.net 4 c#I want to preview pdf files just for reading, no print no copy no print screen no download and no browser cache downloadis there any way to do this ?

how to protect online pdf file from printing, copying ... etc

3 Apr 2012 by ASakr

thanks Birajdar for your helpthe pdf file content is very important so I can't depend on slide show technique .

how to protect online pdf file from printing, copying ... etc

15 Apr 2012 by Atul Dhimaan

Is there any solution to make PDF file password protected . So if user download my PDF file, it ask for password first....Is that possible.

How to create password protected pdf file in vb6.0

17 Feb 2014 by kk2014

Hello,I need to create password protected PDF file in VB6.0.How can i do this? any reference link, suggestion or source code?Thanks.

How can I make vlcplayer play in a control of a C# winform?

14 May 2014 by Water1988

I found a function "libvlc_media_player_set_hwnd", I got a handle using the member of Control, which is Control.Handle. and I gave it to that function, when it runs, it shows "Attempted to read or write protected memory". what should I do? what mistake did I take?

mvc or asp.net file prevent download block

16 May 2015 by Kapalı Kapalı

hello I am sory..my english is not goodI don't want the download of filesHow do I prevent files being downloaded?I want to protect my files ( image pdf ) How do I prevent the download?or download files are corrupted thank you