State Management :: How To Implement Caching To A Dropdown List
Dec 3, 2010How to implement caching to a dropdown list
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State Management :: Caching A List Of Data?
Jul 26, 2010I 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.
State Management :: Best Practise For Caching Objects For A List Of?
Dec 7, 2010I'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.
State Management :: Partial Page Caching (user Control Caching) And Button Events?
Jun 14, 2010I 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.
View 2 RepliesState Management :: Persisting DropDown List Attributes Across Page Postbacks?
Oct 12, 2010how can DropDownList attributes be persisted accross page Postbacks?
Example:
DropdownList1.AutoPostBack = True
DropdownList1.items(0).Attributes.Add("Attribute1","somevalue")
On Postback the attribute is no longer available (ie. attributes.count=0).
I tried persisting using the code below, but was unsuccessful:
Before PostBack: ViewState.Add("DDL","DropdownList1")
On PostBack: DropdownList1 = ViewState("DDL")
This generated the error: DropDownlist is not marked as serializable.
I than tried:
Before PostBack: Session.Add("DDL","DropdownList1")
On PostBack: DropdownList1 = Session("DDL")
This did not err but attributes were still not available.
State Management :: Retaining The Dropdown List Values Moving From One Page To Another
Mar 27, 2010I have four dropdowns in the first page and then a button which saves the selected values from the dropdown to a session state .
In the second page I do have previous button which comes to the first page. My problem is that the dropdown values are not getting preserved.
Here is my code for the First page
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using MyBusinessLayer;
using MyDataLAyer;
[Code]......
The problem is that I get the error object instance not set to an instance of an object
State Management :: ObjectDatasource Caching
May 21, 2010I 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.
View 3 RepliesState Management :: Caching With A Web Garden?
Mar 22, 2011Does 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?
View 3 RepliesState Management :: How To Do Conditional Caching
May 31, 2010I 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?
State Management :: Data Caching C#.net
Aug 20, 2010I 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?
View 5 RepliesState Management :: Using Caching While Storing Variables?
Jun 1, 2010I'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.
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State Management :: Using SqlCacheDependency With Output Caching?
Apr 9, 2010Iam 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]....
State Management :: How To Overload On Server Due To Caching
Aug 10, 2010I 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?"
State Management :: Caching With Static Classes?
Jul 3, 2010Currently 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.
State Management :: Caching Aspx Page?
May 19, 2010how can i cache aspx page?
View 2 RepliesState Management :: How To Use Caching For Frequently Communicating To Database
May 18, 2010i 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.
State Management :: Where Is The System.Web.Caching.Cache Actually Stored
Nov 25, 2010I 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?
View 4 RepliesState Management :: Caching Implementation On The Basis Of Session?
Mar 2, 2011in 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 .
View 10 RepliesState Management :: Caching The User Control Data Based On Multiple Parameters?
Feb 10, 2011i 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
View 9 RepliesWCF / ASMX :: Implement Caching Using System.Web.Caching?
May 15, 2010how to implement caching in wcf service using System.Web.Caching
View 2 RepliesState Management :: Implement Features For Shopping Cart Using Profile?
Feb 3, 2011I need to implement the following feature for a shopping cart using profile:
1. User opens the site from Computer A and selects items which are added to the shopping cart. Now suppose the User logs in the same items should be displayed in the shopping cart as before he logged in. Now say he adds some more items to the shopping cart and logs out, then the items he added newly should also be displayed in the shopping cart.
2. If the same User as in Step1 opens the site from Computer B and logs in there should be a different profile entry for him and he is not to be shown the items that were selected in the shopping cart in Step1.
I feel I need an implementation of the profile on per user+ computer basis for logged in Users. We have this kind of requirement for a B2B site where companies will have only one common login and it will be used by many Users to order items.
Web Forms :: Implement Click Event On Dropdown List Control?
May 19, 2010May be this question sounds silly, but I want to add an event for the Dropdownlist web control (using VB.Net) to implement Click event. I have a Dropdownlist control with some items. As soon as user selected an item, it should display some records based on the selection. Currently I am having a Submit button and user has to hit on that button to see the records. I want to remove the Submit button and wants to see the records as soon as the user choose the item in the dropdownlist
Dropdownlist is coming with default event "SelectedIndexChanged" and it is not helping me to achive what I want
This is my code that I tried so far (but zero luck)
[Code]....
State Management :: Populate Dropdown From Cache
Oct 6, 2010I wanted to know the best practice for caching data. Say I have some control example a dropdown list which is populated from my db. Now this dropdown is global and used across many pages. I was thinking of not going to database everytime to fetch data for this dropdown and put the result in Cache. And then populate this dropdown from cache. Is this a good practice or if there is another approach. Can I store my datareader in cache and then use it globally. Also could I do this in application start event?
View 4 RepliesForms Data Controls :: How To Implement A Filter Feature With Dynamic Chained Dropdown List
Jan 15, 2011how to implement a filter feature like this? What Ajax or JQuery controls can be used for this (if any)?
Here is an example of how the UI might look like:
See the Exchange Management Console image:
[URL]
Here is the spec:
The ASP.NET page has a "Filter" component and a "Apply Filter" button. The "Filter" component consists of 4 UI controls as below:
1. A dropdown list with prepopulated values like "Name", "Department", "Building", "Email Address".
2. A dropdown list with four operators - "Equal", "Not Equal", "Like", and "Not Like"
3. This is a dynamic control. It could be a textbox or a dropdown list. If the user chooses "Name" from the first UI control, the third UI control will become a Textbox. If the user chooses "Department" from the first UI control, the third UI control will become a dropdown list with all departments within this company pre-populated.
4. A button with AND expression. If the user clicks this button, one more Filter component will be created.
One possible user case is like this:
ASP.NET: when the page is loaded, it displays one Filter component (3 UI controls and a AND button), a "Apply Filter" button, and an empty "Filter Result" data grid.
State Management :: Dropdown Lis Should Be Keep Index After Page Change And Back?
Aug 11, 2010I am having a dropdownlist and fill it by providing dataset its working on page now what i want is when i am click on a button page is transfer to another page but from that page when i am back i want dropdown value selected.
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