State Management :: How To Use Caching For Frequently Communicating To Database
May 18, 2010
i 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.
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Jun 14, 2010
I have a page with a number of user controls, In one of my user controls I have a button event. I turn on output cache for the user control that has the button and vary by control using the ID property of a hidden field control in the user control. whenever I turn on the output cache my button event doesn't fire.
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May 21, 2010
I have an issue with the object datasouce caching. Users are seeing other peoples cached records when they click next on the grid. It looks as though the caching is shared among users. Bascially when the user get to the screen they have date filters so they can further filter down the records. If another user it in at the same time and the first user hits next they get the second users filtered records.
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Mar 22, 2011
Does ASP.NET provide any sort of out-of-process cache server, similar to the way the session server works? If not, what would you recommend for caching in a Web Garden scenario?
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May 31, 2010
I want to cache a page with specific value of specific querystring using SqlDependency.
I found with VaryByParam
= "ProductId,CategoryId" I can do that but I want to cache the page only if ProductId is 10 and / OR CategoryId = 15 for example.
How to do this?
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Aug 20, 2010
I have a large SQL Database in the server from which I can create a dataset of about 10000 rows. My question is about caching this data. Which type of data caching should I choose (Server side or Client side)? Which one will provide better performance?
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Jun 1, 2010
I've begun building a bit of a framework that I wouldnt mind working with. The idea is to create a framework that makes it even easier to create CMS addons (So basically a CMS framework).
One of my goals with this project, was having all modules made within the framework automatically support version without any extra coding.
More to the point, the way that I started building this, many pieces (Lots had to do with the versioning system) became interlinked. A version Object in the code related directly to a Module Object and vice versa, therefore the class definitions for each relate to eac otherh. (So having only the Module object, i could access the versioning object and all of its properties). My issue with this is of course what happens if i have both the module and versioning objects in my code simoultaneously, resulting in having not just duplicates of the data within the code, but (perhaps) infinite amounts, killing the app.
So what im wondering is, what if my modules properties where stored within the cache? Ie if i had the Module object, and it had the property ID -- Then the data for ID would be stored in the cache within the module object. Referencing the value simply retrieves the value from the cache if it exists there, and the SQL database if it doesnt. This way, all instances of the module that may be running at the same time will have access to the same information, at the same time, and hopefully causing it to use less space in total.
I would then add a function, so that if a developer was loading a rarely used module, or dident want to occupy cache space with large amounts of data, then they could just call a Dispose function that would remove the data from the cache.
Does this method sound reasonable? I know this probably isnt what the cache is designed for -- but I cant think of any other way to do this without having an infinite loop of objects referring to each other, or causing huge discrepencies from having different instances of objects referencing values that should be the same, but arent because they are technically different instances.
[Code]....
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Apr 9, 2010
Iam adding SqlCacheDependency programmatically but Iam not able to invalidate the cache.
Iam using the following Output cache directive in the .aspx page
[Code]....
The code in the .aspx.cs file is:
[Code]....
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Aug 10, 2010
I have found this question in interview questions
"If i store cache in server the server will over load because of cache objects so how can i prevent that?"
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Jul 3, 2010
Currently I have my data cached in Datasets in a static class. I was talking to my cousin's husband, who works as a C# developer for our local Telecom company.
Basically, I'm pretty new to ASP.NET and although to me having cached data in a static class makes sense to me, when I talked to him about it, he said there might be a problem when the site goes live, as on a web server more than one instance of the class may be created.
He did say this was a theory, and it was an area he didn't know an awful lot about, so I thought I'd ask some of you ASP.NET gurus to see if what I've done is totally wrong or not.
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May 19, 2010
how can i cache aspx page?
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Jul 26, 2010
I have a List (Table) of Data that I display in a Grid View. For now lets just assume I have a List<CustomObject> cList that I give to my GridView.DataSource(). I have a AJAX call (from a DropDown on the Page) that enables me to filter the Data in the GridView. This works. For now, I re-fetch the data from the DB, and filter it.I am wondering if there is a more efficient way of doing this i.e. to save the data the first time I get it, and then display a filtered list of that data when requested. I attempted to save the data as private variable on the Page, but it seems that Page gets recreated for the AJAX call. My attempt looks like:
[Code]....
[Code]....
This page is accessible anonymously - so there is no User Profile or something like that. P.S. I put my code in the Insert Code Dialog, but it does not seem to format it correctly. Sorry about that.
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Dec 3, 2010
How to implement caching to a dropdown list
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Dec 7, 2010
I've created a blog for my first asp.net website. Ive got a blog class as my object. Ive created a number of methods to access my blog articles using LINQ to SQL.
Each method returns a list of objects ready to be used in the appropriate web user control.
In my head i need to cache these lists of objects that are returned, but need to know the best way of approaching this. So i have come up with two possible options
1: Make one method to retrieve all blogs in a list<Blog> and cache this list to be used for all other methods or
2: Cache only the required methods that really need it.
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Nov 25, 2010
I am using this to store my user information for authentication. I'd like to know where this is actually being stored? I know that people suggest to store the Session state in SQL. Is this necessary for the Cache as well?
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Mar 2, 2011
in my web appliaction there are many pages which use data from backend . and all these pages run according user login in application.every user gat different data according data availability for particular user .And data is not static for user in database it can be update ,delete,and may be new data inserted for user, frequently . in this case roundtrip for data on sql serverv increased and it cause of load on sql server. in this csae i want to implement caching on my pages. But I am not able to do this because i have no idea about how implement caching on the basis of particular user data .
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Feb 10, 2011
i have a usercontrol called navigationmenu whose data is static but varies with loged in1.empID 2.empType 3 Country my question is how can i cache the data of usercontrol based upon combination of these 3 parameters
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Apr 5, 2010
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?
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Mar 28, 2011
I 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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Feb 2, 2010
I am coding in ASP.NET C#. I have Microsoft Dynamics GP hosted at a server and my database hosted at another server. I would like the GP database take value from some table there and synchronise it with my database. Which is the best alternative? Data transmission Service(DTS)?
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Dec 7, 2010
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?
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Sep 21, 2010
i 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
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Nov 21, 2010
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
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Sep 17, 2010
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'
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Aug 2, 2010
I´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?
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