.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

How to identify user request particular webpage

Posted By:      Posted Date: October 13, 2010    Points: 0   Category :ASP.Net

HI Friends,


i have a scenior,


when First user request the webpage called for ex(http://xxxx.aspx) page,at the same time


when the second user request the same page (http://xxxx.aspx).


i have to get the message "Already User is using this page try after some time ".


could any one help me .





View Complete Post

More Related Resource Links

RegEx Request : Get all the tag in a webpage.

Hi! I have used Regular Expression(?<=img\s+src\=[\x27\x22])(?<Url>[^\x27\x22]*)(?=[\x27\x22]) to get about content of src tag.  For this case:    - Example: <img src="/vasep/Data/Sites/1/picture002.jpg" alt="hhhh" title="hhhhh" width="550" height="412" />        Regular Expression is true. I get content of src tag. But!! For this case:  -  Exmple: <img title="hhhhh" src="/vasep/Data/Sites/1/picture002.jpg" alt="hhhh"  width="550" height="412" />      Regular Expression is false. I do not get content of src tag.Please help me!

Opening a webpage impersonating the user

Hi, I have to do something quite weird.I have a WebApplication1 running in a port (let's say 4000) and I'm trying to build a website (WebSite1), running on IIS, that is running on the same server. I have no control over the WebApplication1, it's a packaged software, WebSite1 is built by me.The WebSite1 will do a custom user validation and then will let the user access the WebApplication1:4000 under the impersonated user under which the website is running, not the user in the client machine. Sort of like changing the user in the session.I know this makes very little sense (unless you're in my situation) just want to know if this is remotely possible.Thanks a ton,Regards

How to make sure that user doesn't open same webpage in two different browsers or browser tabs?



We are using asp.net StateServer for asp.net session management. In our project we need to make sure that if a user is already logged in and if he is trying to acess the website from a different browser tab, we need to inform him that he is already logged in in another tab and use it instead of opening a new session. Consider the following scenarios:

1. User is logged on in tab1 and his session is still on, then user tries to logon from another tab, the browser sends the asp.net session_id cookie, In the page init i am checking if the Asp.net session Id cookie is present, if it is there i am checking if the it is a new Session (i.e. if the existing session timed out), if it is a new session then proceed with the user action else it means that the session in tab1 is still active so i am redirecting user to error page with appropriate message.

Now the problem with this approach is that, suppose session in tab1 is expired and user opens tab2 and performs some actions, now he goes back to tab1 and perform any action, i directly need to take him to log out page.

Please let me know how this can be achieved.

RegEx Request : Get all the tag in a webpage.


How do I get all the <img src=" "> tags on a web page. Includes the value of the src. I need to in my C# application. I want to grab a webpage and parse the page to get only all the <img src=""> tags and put it in an array or in a database. I want to check the <img src='"> tag of two pages and check if they are similar or not. If not, error or prompt will occur.  

Please help.

Thanks and more power.

How to identify whether a user has granted direct permissions or through a group?



I want to find whether a user in a site has been granted permissions directly or he is inheriting permissions from a group. How can I do that using SharePoint object model?

Visit SharePoint User group - India

Identify if the user is logged in from office or home


Our company lets users log in from office, home, and any other location to our network.  How do I determine programatically from which location he is logged in from (Home, Office, or any other location)?

MS SQL Server: Disconnect Users From Database - Kill User Session

If you ever wanted to restore your database from a SQL backup file (.bak), but there are still users connected to your database, the backup operation will fail causing the error: Exclusive access could not be obtained because the database is in use.

Choosing Between a User Control or Web Part for SharePoint

SharePoint will only display Web Parts on a page. However, there are publicly available shims that allow you to write user controls and have them be displayed as a Web Part. From SharePoint's point of view, the shim is a Web Part. From the point of view of the user control, the shim is simply a control in .NET that is including the user control

Creating Sites/Lists/List Items under Current User Context in SharePoint By Using SPUserToken

Usually we do this by performing the action under RunWithElevatedPrivileges method and updating the listitem using SPListItem.SystemUpdate() method (see here). but this approach has its own flaws like (RunWithElevatedPrivileges will run under system account, we cannot use SystemUpdate for SPSite,SPWeb,SPList, since it runs under system we will "CreatedBy" by as SystemAccount).

How to track the changes of user contacts(colleagues) by using SharePoint API

We might have seen colleague tracker web part which keep tracks the changes made in our contacts/colleagues details like profile/lists/sites. The same tracking mechanism can be implemented by using MOSS API in any custom web part/ web control/ feature/web service...

UserProfile.GetColleagueChanges is the method which returns all changes happened with the contacts, this method also accepts a Query (UserProfileChangeQuery) where we can specify different parameters to filter the changes

Configuring User Profiles in SharePoint Server 2010

Note: I've added the necessary links relating to SharePoint Server 2010 prerequisites, along with instructions for configuring the user profile synchronization service, at the end of this

User Defined Functions in Microsoft SQL Server

User Defined Functions are compact pieces of Transact SQL code, which can accept parameters, and return either a value, or a table. They are saved as individual work units, and are created using standard SQL commands. Data transformation and reference value retrieval are common uses for functions. LEFT, the built in function for getting the left part of a string, and GETDATE, used for obtaining the current date and time, are two examples of function use. User Defined Functions enable the developer or DBA to create functions of their own, and save them inside SQL Server.



Dear gentlemen and ladies of the Microsoft Dynamic Data Team,

Mr. Steve Naughton says (and I hope so) that there might be chances that you read the posts published in this forum: I really hope so.

If that were the case then I am formally requesting to you in providing a "real answer" to my question:

I want to customize a dynamic data page (the details one) so I can have access to the data it has been already gathered from the end user UI (details.aspx) and use it to pass this same data to the following controls/pages that I am going to display next time to the end user.

For instance:

I have a screen with different types of data in it: texts, numbers, dates, check boxes, radio buttons and dropdownlists that has been filled with data by the end user. I want now to reset all fields exept the dropdownlist of which I'd like to keep the previously chosen values(the very same thing you do between dropdownlist of List.aspx ad Details.aspx). Even with FoxPro I could do that because data and controls were available there. It was as simple as setting carrying on to true.


I have found my

view state vs request parameters


If  the view state is the data entered into the form fields then they are supposed to be available in the request parameters or request body. Then why would we need view state for?


Unique ID throughout entire request



I am hoping somene here could advise me on a better solution to my present problem.  First a little background information on the application. 

I have a web application using the 3.5 framework.  The structure of this application is as follows: UI -> WebService   -> Business Layer -> DataAccess Layer.   What I want to accomplish is for every request (click on a link or button) have a unique identifer that follows this request through its entire lifecycle.  This unique identifer can be accessible anywhere within this request.  We use Response.Redirects which could easily be changed to Server.Transfers (although I do not want to do that) but  the problem lies with the web service calls.  Currently, a GUID is set in the ApplicationRequest.  This GUID checks for a guid value in the RawURL and if so, assigns this value to a HttpContext Item.  If not, HttpContext.Items gets a new one created.  However, this idea is wrong and will need to be revisisted.  The bigger problem is with the web service calls.  Without changing every web service method signature, and every call for that matter, is there a way of getting this GUID there.  I created a web method in every web service so that each time I instantiate a web service object in the UI, before calling any

Building Re-Usable ASP.NET User Control and Page Libraries with VS 2008


I am having problems with a user control. I want my solution to have a separate project for holding my user controls.

The main project can get a reference to this user control project and can import this user control dll into my main project. 

Thanks in advance,

Dheeraj Mittal


Custom views on .aspx webpage


Hi again, i have a client that needs me to create a custom view on thier webpage similar to Microsoft Word.

It goes about that, when I click on an image it redirects me to another page and must create a custom view for a certain paragraph on that page. I am not sure how to do this and wonder if anyone knows how.

I am using C# programming language if that helps at all. I Heard that using javascript would work but i dont know javascript yet so is there any alternative?

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend