I've seen some explanations of these, but nothing that really compares where they start, end, or overlap, or good examples of their use.
What is the life span of each of the following data collections? And am I missing any?
Application
Session
ViewData
TempData
I want to know , how good / bad is it to save configuration values in a static properties?I am creating an application which reads configuration from an XML file and a DataContext file, instead of sending the CustomConfig class into the configuration.xml each time I tought about using an ReadXml() method on application_start at the global.ascx
the ReadXml() method would save the data in static properties of CustomConfig and whereever I would want to read that particler data I would ask CustomConfig.PROERTY_NAME
My question is ? how smart it is ? how long does IIS would save the data in a static member? (if as long as the application exists then I'm ok as long as I add the ReadXml() in the application_start)
I used ModalPopup Control on this link, [URL]How should I write the code that to close pop up by click the area outside the pop up panel?I use AjaxControlToolkit-Framework3.5SP1
View 7 RepliesI have created a simple mvc portable area project with a simple view displaying hello world.
In the portable areas project i added the view as embedded resource ,compiled to dll and added the reference
in the consuming web project.
How can i call the embedded portable area view from another web project
I have data for Visa, Mastercard, moneybookers, etc. .. How do you propose to store data? In each table separately or not? You might like: 1 table that stores all the data and then call the information according to Visa, Mastercard, moneybookers, etc. Example: a table stored all data has deposit_options from each payment, or payments for each option do I need to each payment separately.
View 4 RepliesI'm thinking of using 3 layered architecture in my web site.Kind of classic layers - Presentation, BL, DAL and BO - business objects, just like in this great article http://imar.spaanjaars.com/QuickDocId.aspx?quickdoc=416I will have 4 projects according to levels.I'm goung to store data in xml files and my question is where should those files be located? In App_Data folder of web site? Then how DAL will know path where to find files to parse?
View 4 RepliesHow save and display data from local storage with angular..I want save this data example
View 1 RepliesI am looking for opinions and best coding practices.I need to get info from a database with a query such as SELECT this, that FROM MyDB (returning 2 fields). Would it be wrong to use a hashtable for temporary storage?Is there a better way to accomplish the same thing? What about if I am returning more than 2 fields, would it be best to step up to a DataSet or something?
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
GetData();
[code]...
I want to use XML file as a data source for my application.
View 2 RepliesWhat data type of storage used for male and female?
View 2 RepliesI need to do edit funtionality for registration forms (5 in number) in a trading system. Requirment is to do it in a way that user edit details in a form and click next or previous button and data will be saved somewhere until user reach last form and click save button. On this click all changes will be updated to database table. where I should hold this temporary data ? I cant use database tables for this. There come many options in mind like cach, session and application variables. But I am confuse which way will best performance wise. There are 5 forms and every form has 15 to 25 fields in it. I dont know expected no of users but hoping a good count.
View 8 RepliesHow can i access data from text area as it is formatted.
View 2 RepliesI develop a asp.net web application with mysql database. Our monthy data entry records will be over 700. Here I would like to know : could mysql safely handle this monthly records year by year?to handle these records, should I need to make any registration to mysql for any services?is mysql a totally free database?
View 3 Repliesi have this code in html but i dont know why i cant take the correct value
the "xcity" take only the last value ??
[code]....
A Datalist result area is coming up with a white backround. I am placing it in a box with a background image so it really needs to be transparent, not white. I have tried to adjust this in the properties of the datalist as weel as my CSS but I seem to be missing the one place I need to adjust.
View 16 Repliesi have div control.... inside i am having datalist control .but i want to make all datalist items with same size and spacing between items should be the same. whatever width of the div tag .but no. of items should be adjusted in that area i have repeatcolumns =3 but it could be any no. so it should get adjusted. i have list of images to be display in datalist.
View 1 RepliesA few years ago, when first being introduced to ASP.net and the .NET Framework, I built a very simple online file storage system.This system used Rijndael encryption for storing the files encrypted on the server's hard drive, and an HttpHandler to decrypt and send those files to the client. Being one of my first project with ASP.net and databases, not understanding much about how the whole thing works (as well as falling to the same trap described by Jeff Atwood on this subject), I decided to store freshly generated keys and IVs together with each file entry in the database.
To make things a bit clearer, encryption was only to protect files from direct access to the server, and keys were not generated by user-entered passwords. My question is, assuming I don't want to keep one key for all files, how should I store encryption keys for best security? What is considered best practice? (i.e: On a different server, on a plain-text file, encrypted). Also, what is the initialization vector used for in this type of encryption algorithm? Should it be constant in a system?
User images - database vs. filesystem storage
Where should i store photos for a facebook-like app ? locally on the server in a folder or upload them to a database ? I am not intending to make this app commercial .
Currently I am looking to move my websites images to a storage service. I have two websites developed in PHP and ASP.NET.
Using Amazon S3 service we can host all our images and videos to serve web pages. But there are some limitations using S3 service when we want to serve images.
If website needs different thumbnail images with different sizes from original image, it is tough. We have again need to subscribe for EC2 also. Though the data transfer from S3 to EC2 is free, it takes time for data transfer before processing image resize operation. Uploading number of files in zip format and unzipping in S3 is not possible to reduce number of uploads. Downloading multiple files from S3 is not possible in case if we want to shift to another provider. Image names are case sensitive in S3. Which will not load images if image name does not match with request. Among all these first one is very important thing since image resize is general requirement. Which provider is best suitable to achieve my goal. Can I move to Google AppEngine only for the purpose of image hosting or is there any other vendor who can provide above services?
Im using Visual studio 2008 in a Windows 7 (32 bit) operating system. Ive just started getting this error message randomlyNot enough storage is available to process this commandIve googled the message and it seems like the solution is to increate the amount of RAM visual studio usesIve tried to follow the instructions herehttp://stevenharman.net/blog/archive/2008/04/29/hacking-visual-studio-to-use-more-than-2gigabytes-of-memory.aspxbut when I try to use bcdedit, I get this errorboot configuration data store could not be opened access is deniedso I tried the suggestion herehttp://social.answers.microsoft.com/Forums/en-US/w7repair/thread/9e995bc8-141c-4ed0-9b17-2dbe92369202Im confused by this linec. At the command prompt, the following line, and then press ENTER:bcdedit /set {current} Description "name you want"and press Enter.
View 7 RepliesIn our organization we had to write code to store and retrive documents in many apps. Now I would like to write a service/library that can be used my other devs. Not sure how to start about that? What should be my first step.
View 5 RepliesI maintain a web application (ASP.NET/IIS7/SQL2K8/Win2K8) that needs to access documents, actually hundreds of thousands of documents, and growing. Currently, they are all on a Windows 2K8 Server fileshare, being accessed by UNC path (SMB). The files are in a single flat directory and I'm trying to plan how to best improve this solution. I don't want to use the SQL Filestream attribute as it would be significant effort to migrate it all into that, and would really lock in to SQL Server. I also need to find a way to replicate the data for disaster recovery, so perhaps a solution can help with that too. Options could be: Segment files into multiple directories? application would add metadata for which directory it's on (or segment by other means) Segment files into separate servers? (virtualize)Backup becomes more complicated. Application would add metadata for which server it's on
NAS Storage
SAN Storage
Put a service (WCF) in front of the files and have the app talk to the service bonus of being reusable across many applications Assuming I'm going to store on filesystem and not in database (I've read those disccusions here), which would be a more scalable solution?
I have an ASP.NET site in a web server and the images are stored in NAS (some kind of lacie external storage), I tried UNC and other things but no success. how can I access images from external storage in ASP.NET Update: The images are reachable from the server but when I try to access in ASP.NET throws me error.
View 2 RepliesI would like to be able to give my users the ability to securely upload and store files, sometimes upwards to about a gigabyte in size. I'm not quite sure what's the best way to go about doing this. I would like to have the connection between the client and the server secured, so I'm sure I will probably have to use SSL. Now, my major crux is secure storage. Being that the data is somewhat sensitive, I'm wondering if I should encrypt the file before it is stored. I guess my question is, should I open the file and encrypt each byte or encrypt the file as a whole. I'm assuming that the latter is the better option. I know that there are a number of examples of how to encrypt a file using a number of different methods (aes, des, md5 (hashing not really encrypting), etc). Currently, to encrypt text, I am using the Rijndael algorithm, sha1, 256 bit keys, a predefined passphrase, salt value, and IV.
View 2 RepliesI'm currently developing a web application whose primary user function is uploading and downloading of files. The files will be stored on the hard disk (no cloud storage yet).
Taking into consideration the possibilities of gigabytes of data and a large number of files, do I need to organize files into sub folders to account for the fetching of a file or is the file system's indexing already very efficient and I can ignore this potential bottle neck?
Update:
On a side note, I plan to store file names and any additional information in a SQL database and only query the disk when a user actually wants to download the file. This is how I plan on retrieving files:
FileStream stream = File.Open("C:file.txt");
byte[] fileContent = new byte[stream.Length];
stream.Read(fileContent, 0, fileContent.Length;
Any file information will be retrieved from the database. The hard disk will only be used for saving and fetching files.
Update 2:
Files will be saved as GUID + EXTENSION on the hard disk while the actual file name is stored in the database.
