I am developing a web application which will deal with online examination. The requirement is:
There can be n-number of sections in an exam and admin users should be able to create questions/answers and add to an exam. The questions should be displayed for a certain amount of time in the browser with meclock and it should move to next question automatically. User should not be allowed to open any other instance of the browser or login from another IP if the exam is in progress.
I am seeking community vote of how would someone design the application to meet all these criterias? What patterns should be used? What components to reduce the development time etc..My technology stack is C#, ASP.NET MVC or ASP.NET with SQL Server.
I am a newbie and have designed a website using ASP .Net 2.0 with C# 2005. On the home page I am displaying rates of a few items which gets updated every 15 minutes. The new rates are entered through a different web page into a SQL Table and I am using Page Refresh of the home page to update the rates every 15 minutes. Everything is working ok upto this. But now I have to display a countdown timer of time remaining for the next update on the home page. I am totally clueless as how to approach the problem.
I want to create a Online Exam site in ASP.NET .In that i want to display Test based on the Date and time and the user can take the test at the time set my the Teacher.
For Example:
Teacher want to take C Test for the Mid Semester Test and the test is schedule on 1 May 2010,then the test should appear on the test page on the 1st may only and the user should be able to take the test on the set time.
The problem is that if i use System time then user can change the system time and can take the test schedule in future.
So i want to know how can implement this thing.I have given many online test but dont know how they work out the time and date logic.
I would like to pop up a box that warns the user of session timing out in 5 minutes. There are lots of examples of this on the net and I can figure something out. My question however is how to get the time remaining.All examples I read about set a client side timer to countdown from last postback. I would like to do something different. I would like to make an AJAX call to the server and get the time remaining from the server. Is this possible?Since an AJAX call will not reset the session timeout timer can I read the number and send it back to the client?
I have an object on the webpage that I normally will attach a source to. When doing that as in the code below it works fine.But if I have a empty string for setSrc1, then the webpage shows a message in the left down corner that:
"1 items remaining" Waiting for...
How would it be possible to not have this message if no src is set to the Object1 ?
Where is says Online i need it to say Offline when the user if offline.
Okay, now i think i got explained what i would like to do.
How i would like this to work:
When a user logs in i want his status to change to Online.When the user press Log Out i want the status to go Offline.
When the user haven't been active for 10 minutes i want the status to change to Offline, but he is still logged in.If he clicks on something he's active again, so i want the status to go to Online again.If the user browse away from the site or close the browser/site i want it to go to Offline status again.
I am trying to save and show the image online. i save the image like this:
[Code]....
The problem is it is not throwing any error but it is not showing the image in the Image1 either. What can be the reason for this and how to get the image ?
My problem is that I have a grid view that show the data from database.In my gridview i add a column name date .like eg You knw that when we send a scrap to anyone then show time how much time to send a scrap.
Im using Visual Web Developer 2010 , ASP.NET and VB
Im using the "ASPNETDB.MDF" database for membership and others ,
1-- i created a gridview in my masterpage 2-- Connected to to " ASPNETDB.MDF" and "asp_Users Table" 3 -- Selected all 4-- My Select the Field "UserName"
Now im trying to get the On-line Users .
Im having a problem , becouse i can't see it when i debug the page, i changed the font , background color , i havent got any erros , what i need to do ?
what I need to know is how to show a count of how many users are signed on with a custom sql script, here is what i got that shows total users but not total online
[Code]....
Again this gives a total count but i need a total count of who is online with this setting, and try to keep it in sql statement if possible as i have not yet learned how to use stored procedures.
I have a client request that all times be displayed in Pacific Time Zone, regardless of client settings. I'd like to avoid a scenario where I have to call a function for every time display and instead have a single point where I can make the switch.
I'm thinking a custom culture might do the trick, but I wanted to ask before I set off down a potentially blind alley (or miss something trivially easy).
I have an ASP.NET website that worked fine using and debugging in VS2008. I went through the upgrade process opening the solution in VS2010. I can run the site, but as I make changes in the app_code folder classes, they don't seem to commpile and warn me of compile-time errors. As soon as I get to a point that calls the class, the errors show up. Sounds JIT I guess, but this isn't how it was working in 08. Is there an option that was changed in the upgrade process? This is a large project, I really don't want to break something and not find out until some obscure page is opened.
Problem:in the Host(not local system) Captcha show only one image that created for first time,but in my local system every things is right,and captcha change for every page load...
i think image can't find server folder address and always show first produced image!!!
see code:
[Code]....
where is the problem?
notice:when i see server "Upload" folder and "AddIntuitionReflexRandom.gif" file,content change truly,but that can't show in my image.
I have a problem with dll. I have a class library and genrerated a dll. that dll has business entity object.If i pass value from front end t that dll.The value has not been accepted.Its remaining null after i passed the value
I have block of codeas below, in code.some time i am having problem to send email then it throws exception and it doesnt execute remaining part. So,I have commented email code right now, which you can see with these 2 function.
Util.SendAssMail Util.VacationMail
Now, I want that, Whenever these function throws exception, the remaining part of code must be executed.
Dim EmptypeCode As String = String.Empty Dim p_flag As Integer Dim periodFRom As String = String.Empty Dim PeriodTo As String = String.Empty Dim vac_code As String = String.Empty Dim extFlag As String = String.Empty Try strbody = strbody & vbCrLf & "السلام عليكم ورحمة الله وبركاته" strbody = strbody & vbCrLf & "لقد تم الموافقة على طلبك من قبل ادارة شؤون الموظفين" strbody = strbody & vbCrLf & "يمكنك الدخول على نظام الاجازات لمتابعة الطلب عبر الوصلة التالية" 'Util.SendAssMail("webmaster@rcjy.gov.sa", "", strbody, mydb.GetMailId(Session("empno").ToString())) ' Util.VacationMail(mydb.GetMailId(Session("empno").ToString()), mydb.GetMailId(mydb.GetManagerCode("0201133")), strbody)...............
I am developing a simple online DBMS to browse my database online.... the main concern for me is to clear everything from the PC when the user disconnect so no body can go and click (Back) on the browser and see the pages if the user forgot to close it.. what I have done so far is :
[Code]....
I am sure this is not enough.. am I right? so what else I should include there?