Currently i have created Anonymous Profiles, i am not knowing whether the data will be saved in SQL database or Cookies, as i do not want to grow the database for Anonymous Profiles ? But in future i may migrate the Anonymous Profiles to Authenticated ProfilesBelow are the clarifications i need related to Profiles1) Do data of Authenticated Profiles saved in SQL database ?
View 4 RepliesI use the sitemap, Web.Sitemap file and the asp:menu control in my website for navigation. It has a few navigation tabs, e.g 'Home', 'First Page', 'Second Page'.....
When I click on the 'Home' tab, it goes to http://www.mywebsite.com/Default.aspx. When I click on the 'First Page' tab, it goes to http://www.mywebsite.com/FirstPage.aspx., and so on....
Everything works as expected.
However, after starting the web application, after a few days a set of weired characters will be inserted to the URL as follows:
http://www.mywebsite.com/(A(8WD4a1wHywEkAAAAMTQzN2FjNDMtOThhMi00ZmNmLWI3YTQtMDY1M2EwOGRmYjliJ-h1Vp9RJnoGNTpb9d3ZfJuoncc1))/FirstPage.aspx.
I checked with the MSDN and found that the strange characters above is the Anonymous-ID embedded in the URL by asp.net (this is the link: http://msdn.microsoft.com/en-us/library/aa479315.aspx)
The tabs still work, and I can still go to the First Page, Second Page... etc. even with these strange characters embedded in the URL. However, once it appears, the 'SiteMap.CurrentNode' that I use in the codebehind always return null, and I can no longer get the 'SiteMap.CurrentNode.Title' property.
And all the submenu will disappear too (I am not sure if it is caused by the SiteMap.CurrentNode problem above or by something else).
I have explicitly set the cookieless mode for the Anonymous-ID in web.config to "UseCookies" as follows:
<anonymousIdentification cookieless="UseCookies" enabled="false" />
but I still get this embedded Anonymous-ID every few days. And once it appears, I have to restart the web application in IIS to fix it. Then it will appear again after two or three days.
how to stop this Anonymous-ID from inserting to the URL?
Our ASP.NET App uses ASP State Session Management and has been rebuilt about 2 years ago [With .NET Framework 2.0]. We are currently in .NET framework 3.5 and have moved to SQL Server 2008 - but continue to use the same ASPState database. The State database has been upgraded to SQL Server 2008. Since then we have are seeing timouts/locks on ASPStateTempSessions table. I am wondering if we have to rebuild this database from scratch with some newer scripts?
View 2 RepliesI have upgraded our system from .NET 1.1 to .NET 4.0. I also had to update the ASP Session State database to version 2 by running the following command in the command window.
aspnet_regsql.exe -S localhostSQL2005 -d ASPState -ssadd -sstype c -E
Is there any way that I can configure the MSI setup project to check the ASP.NET Session State and install version 2 if needed?
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I get the following error : The SSE Provider did not find the database file specified in the connection string. At the configured trust level (below High trust level), the SSE provider can not automatically create the database file.
I have a application where login details are in 1 database and user details are in another database.Different cities have different database with common login database.As soon as user logs in i save the connection string name of its associated city database in a Session to access through out the application.Was wondering if this is the best possible way to do this? Will this cause a problem in Web Farms? Please let me know what is the best possible way to save a value which can be accessed through out the website and till what time is the value valid or expires?
View 6 Repliesi am building an N-tier application now i want to store Data(like XmlNode) that is common to all users ..
now i thought using Application to hold the data but my data lays in the BLL tier which is an Class Library project and i can't store any datain there for example :
HttpApplication MyApp=new HttpApplication();
MyApp.Application["Data"]=XmlNode;
My question is what is the best way to store Data (not small data like user name etc..) is it Application? orCache?
i would like a small example within a ClassLibrary project
I have a webpage which updates user information onto to the database, whenever they click the save buttonsince am using session variables in my page, data in the session variables is getting lost after 20mins if the session is idle, in order to keep the session alive am using the refresh option for every 5mins, after that the session variables are not lostNow my problem is whenever the page refreshes the user is losing all the data which is not saved, by means while the user is working on the page during the refresh all the textbox values are lostAny one has any solution for this? , can we extend the session variable timeout ?i tried this changed the session timeout to 60min in web.config as well, but still the session variable values are not persisting
View 5 Repliesi want to use caching in my application
bcz i am depending on same data and in diffrent places i am communicating with database for this data
so i want to use caching and want to store this data after use login into application.
I want to update the User LoggedIn Status to 'False', when the system shut down by light problem, or when the user click the 'Browser Close Button'
View 8 RepliesI´m about to program a common application/website scenario. It contains pages which are presented to users, and some business logic behind, with a database connection class.
My questions are:
Q1: Should the database class be singleton? If so, why? Because does it even matter when every single user is in their own process on the server, and therefore each user has their "own" singleton database instance?
Q2: How would you normally direct users around the site? Would the Default.aspx page create instances of the required classes? And when the user is directed to a new page, how would you normally refer to these instances?
Q3: What kind of general information do you save in the Session variable? Is it a big no-no to save class instances?
Suppose there are three button and every butthon has a click event function.
Clicking the first button displays something on this page with a gridview taking data from databases.
After clicking the first button i stored the value in a variable.
But when i click the second or third button i get null value for that variable.
Clicking the second or third button the page reloads and the value of that variable becomes null.
How can i store the value to that variable permanently?
I have overridden the following methods:
LoadPageStateFromPersistenceMedium()
SavePageStateToPersistenceMedium(object viewState)
in a class that my page derives from, so that the viewstate can be stored in DB.
Now, on page_load of my page, I am checking what control caused a postback & based on that I am forcing execution of 2 button click events in a row (by overloading those click events & calling them explicitely), but the behaviour I want is as if the execution of those 2 button click events went through the regular page life cycle.
Here is the sequence of events that happen in typical page life cycle & notice I want to alter behaviour at step 4 (on load):
1) Initialization
2) LoadViewStateData (here the viewstate is loaded from my database using the overridden LoadPageStateFromPersistenceMedium)
3) LoadPostBackData
4) Load
Here, I would like to force execution of 2 button_click events based on whether a particular control posted back.
4.1) imgBtnPrev5_Click()
4.2) imgBtnPrev4_Click()
Now, when the imgBtnPrev5_Click() is executed, the viewstate is already loaded, so we are fine. But after execution of imgBtnPrev5_Click(), I would like to update the viewstate object in memory & then call the overridden SavePageStateToPersistenceMedium (by passing that updated viewstate object as its parameter) and then before execution of imgBtnPrev4_Click(), I would like to call the overridden LoadPageStateFromPersistenceMedium.
5) RaisePostBackEvent
6) SaveViewState
7) Render
My question is, how do I update the "viewstate" object of the page - that is passed to SavePageStateToPersistenceMedium with the changes made to the controls in imgBtnPrev5_Click()?
I'm creating a website of 5 pages using c# (asp.net).
How do i link 2 pages, ie., on click of a button on first page should take me to second page.
Im working on my first ASPX webpage now, and Im wondering if there is some way to make a cache?
With a cache, I mean a list of variables that gets transferred from a db to for insance a hashtable the first time a user loads the page. When the next user loads the page, the db doesent get touched, but the variable is collected from the hashtable.
I tried to make a static class, but it re-loaded for each time I refreshed the page.
I've developed an web application and there are 4 different languages in my project. I want to call the error messages (error handling) from an xml file or database (i am not sure which method is better and fast).
I can create an integer for each different (spesific) error and can call the error text from another source.
I'm running a website on a SQL 2008 database. At the moment most of my data is in cache but what I want to do is be able to update the data on a regular basis, say every 3 hours, maybe more frequently. Obviously I can set the cache to expire and pick up new data, but how can I replace part of the database (because some tables are populated by the user) in the background, so that when the cache expires the new data is picked up?
I notice when I upload data through VS, it wont let me upload if the DB is in use - so how do I get round issues like this?
when we go for client and server side state management in asp.net
View 2 RepliesI have a cascading dropdownlist. The first drop down is for Departments and is databound on PageLoad from the database. The user then selects a department and the second dropdown is populated with the appropriate sub departments via JQuery/JSON which calls an httphandler. The problem is as follows: I select a department and the subdepartments are filled.
I finish what I'm doing on that screen and everything is fine. But then if I go to a different screen and add an additional subdepartment then come back to original screen, the new sub department won't appear in the cascading dropdown. I have to close the browser and restart the session in order for any new sub departments to appear even though they are in the database. I put a breakpoint in the httphandler and noticed that it is only called once per session per each department in the first dropdown. I don't know why this is happening. I want it to call the httphander EVERY time the index of the department dropdown is changed.
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I am fetching data from .xls file and storing it in to database. Then my users work on a single table where I stored all .xls data. But the problem is that it takes tooooo much time.. So, I want to use cache. But I never used this... Can any one tell me this example how can I use cache with database for increasing application speed?
View 2 RepliesI am doing a POC of making my website run faster. Currently it stores huge object data in Session while passing information from one page to another. What I was thinking is to use shared methods and properties instead of session. It works, but wanted tocheck if this is an optimum way to do it. Below is the code that does not use session but still pass object data from one page to another:
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i have a form on page1.aspx with several controls (textbox, dropdownlist, etc).on Page1 PageLoad event i load data from database and performe databinding.From Page1 a user can, by clicking a specific button, move to Page2.aspx to insert some details and, after saving details, he returns to page1.
if save changes are made on control on page1 before save them to db, obviously, these are lost on return from page2 (because are reloaded on pageload from db).How can i save control status between pages round trip?
i need to know the full concepts state manegemnt in asp.net,..in which site i will get the correct concept for state management....
View 4 RepliesI am currently implementing a client-side paging solution using ASP.NET, jQuery and JSON.
I have been following the excellent article from encosia: http://encosia.com/2008/08/20/easily-build-powerful-client-side-ajax-paging-using-jquery/
In my Web Method I retrieve my data from the database as a DataTable:
DataTable categoryProducts = ProductViewerAccess.GetCategoryProducts
("AA", 4, 0, Page.ToString(), out howManyPages, "FALSE", 0, "CostPrice", "asc", destinationList);
I then retrieve the data from the DataTable into an anonymous type:
var feeds =
from feed in categoryProducts.AsEnumerable()[code]....
This all works great.
However, I would like to extend the code to perform some evaluation checks (e.g., check that various columns in the DataTable are not NULL) and other pre-processing (e.g., call various functions to build the image URL based on the image ID - which is another column in the DataTable not shown in the code fragment) before I return the resulting rows of the DataTable as an anonymous type to the client-side.Basically, I want to iterate through the DataTable, perform the evaluation checks and pre-processing, while building my anonymous type manually as I go. Or maybe there is a better way to achieve this?
User Interface: 2 Labels; 1 Buttons
Requirements: Create a Web Page in ASPx that will do the following:
1)One label will provide a count of how many times Button 1 has been clicked in the current session.
2)One label will provide a count of how many times Button 1 has been clicked by all users of the application. The Application Code for the Button should start at 100 (set this in the Global.asax file). this is what i have so far but i cant seem to get the application state to work properly.
aspx.vb
Partial Class _Default
Inherits System.Web.UI.Page
Dim clickcount As Integer
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Session("ClickCount") Is Nothing Then
clickcount = 0
Else
clickcount = CInt(Session("ClickCount"))
End If
If Not IsPostBack Then
If Request.Cookies("UserName") IsNot Nothing Then
Label1.Text = "Welcome Back " & Request.Cookies("UserName").Value & "."
End If
End If
Dim clickCounta As Integer = CInt(Application("ClickCount"))
End Sub
Protected Sub PostBackSession_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles PostBackSession.Click
clickcount += 1
lblClkCnt.Text = "Current Click Count is " & clickcount
Application.Lock()
Dim clickCounta As Integer = CInt(Application("ClickCount"))
clickCounta += 1
Application("ClickCount") = clickCounta
Application.UnLock()
AppClick.Text = clickCounta
Dim nameCookie As New HttpCookie("UserName", _
TextBox1.Text)
nameCookie.Expires = Now.AddYears(1)
Response.Cookies.Add(nameCookie)
End Sub
Protected Sub PostBackSession_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles PostBackSession.PreRender
Session("ClickCount") = clickcount
Application("ClickCount") = clickcount
End Sub
End Class
global.asax
<script runat="server">
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
Dim clickCounta As Integer = CInt(Application("ClickCount"))
Application.Add("ClickCount", 0)
End Sub
Sub Application_End(ByVal sender As Object, ByVal e As EventArgs)
Dim clickCounta As Integer = CInt(HttpContext.Current.Application("ClickCount"))
End Sub
Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
' Code that runs when an unhandled error occurs
End Sub
Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)
End Sub