Possible Duplicate: C# version of java's synchronized keyword?
I know that when working with a session in Java, you were always supposed to surround use of the session with a synchronized block incase the user would load your page with two browsers at the same time.
I'm considering rewriting a small Http Module i made in ASP.NET in Java. Based on a specific URL, the Http Module inserts some HTML on an empty HTML layout, do some basic reformatting, and finally returns the rendered HTML. Being new to Java web development, what is the equivalent to ASP.NET Http Modules?
View 2 RepliesI'm looking for a way to access a Java API from both a Java console application and an ASP.Net application.In short my Java API exposes a series of methods for dealing with invoices. All of these methods are essentially commands e.g.
GenerateAllInvocies
GenerateInvoiceNumber
PrintAllInvoices
PrintInvoiceNumber
All methods will interact with the database. I had believed Web Services was going to be my means for interop. But I have since been made aware of Java Stored Procedures in Oracle.
I have menu item on my master page that has block around the text when the page is first run. I wrote in the css on the link and visited property to change the color to match the image color that it is on. When a menu item is clicked the color changes to the right color. How do I get it to the right color on when the page first opens or is there a way to get rid of the block or make it transperant?
View 1 RepliesI got asked to write a java application for my company. I'm a seasoned .Net developer so this is all new ground to me.My task is to produce an invoicing application that has several high level tasks such as:Build single invoiceBuild all invoicesMy company want to be able to call these tasks from a java console application - passing in relevant commands and parameters to invoke the tasks. They also want to be able to invoke the same code from an ASP.NET application.
View 2 RepliesI have 2 separate code-block asp.Net expressions in an aspx markup, with an html content between (span element in the example below). In the first code-block, there is "i" as an increment variable for the for loop.Then the code-block is cut with an html content.And another code-block expression is opened but as I see I can reach the "i" variable which was declared in the previous code-block.
So, how asp.net handles -compiles- the pieces of code-block experrions declared in the mark up? Does it check the semi-colons and generates some anonymous methods which will end up with many calls to Response.Write in the last place?
<p>
<%for (int i = 0; i < 30; i++)
{
[code]....
I have the following scenario:
A server with a number of different clients on different networks. Clients will have to synchronize data with the server.
Just imagine we have a simple data table on the server. The client has the same table schema and works locally but at a certain time of the day it must upload and synchronize with the server.
Was thinking maybe in doing the following. On the client have two extra columns:
Ej:
- synchronized (Boolean, default to false)
- Time it was synchronized (date time).
- Have a wcf service on the server.
Whenever it needs to synchronize it calls the service. The service then updates data on the server. The client will wait for a response which will inform whether the synchronization took place or not. If it did it updates its local table, setting synchronized to true and the time.
I need to synchronize the count down time for all users.So it will display identical remaining time to all in asp.net.
View 1 RepliesI found a good website to show presentation with video and slides at the same time. The video is nicely synchronized with the slides. I would like to know whether it can be done in ASP.NET web form. If yes, how to do it? What is the logic to implement this feature?
View 3 Replieshow can I synchronize sessionID over multiple second-domain servers? For example, I've got servers(you can log-in into server swarm at any of these), [URL], [URL], [URL] and if you log in at one of them, the login information (+anything else) should persist along them. How can I provide SessionID to other domains? (session itself is stored on sql server shared across the services).
View 2 RepliesI used the Database Publishing Wizard to create a copy of my live SQL Server database for testing purposes. Both the live and test databases are hosted by my ISP.
What is the easiest way to transfer design changes from one database to the other without altering the data (assuming that the design changes are compatible with the existing data in the target database)?
Any proposed solution would have to be available via Visual Web Developer 2008 Express or SQL Server 2008 Development Edition.
I want to merge a software with a website.I have no source code of software, but i want to the database of online data and offline data will automatically synchronize. I have only control over website, online database and offline database.. Is it possible, if yes how?
[code]....
but when i feed data in offline database, online database automatically updated.
I have what I consider a pretty complex situation that I am not sure if it can even be accomplished via an ASP.NET web application. (I am using aps.net 4.0) But what I want to do is design a "online auction site" that can handle many autions running at the same time. So I can only imagine eBay and all the other millions of auction sites out there are all doing this someway or another. My biggest concern is that I want to make sure the design here to make the site as effiecent as possible. Here is specifically what I am trying to figure out.
I think I need to create an object (per active auction) that stays in memory for the life of the auction. This object would have at least the following information:
Aution ID, time remaining, highest bidder id, bid price, Thread Control Variable, etc...
Now here is the tricky part that I think is vital for auction sites. Lets say you have 500 users on my website that are all watching the same auction and it is getting down to the last second of the auction and they all click to place a bid at the same time. Keep in mind this may also be at the same time hundreds of other users are placing bids for other auctions going on all at the same time.
How do I get all these requests (bids), for a single auction, lined up so that they are processed "one at a time"? But some how I need to be able to make all requests wait in a queue until it is their "turn" then I would need to be able to update the in memory object, write a record into a SQL database and then begin returning information back to each user.
Based on other development languages I have used in the past I know their were objects that I could create that could be used to get multiple threads to run in order (in other words syncronized). Usually it would be a case where I would be listening on a server socket and could do something like ThreadVariable.Lock, <process the request>, thenThreadVariable.Unlock. What that would do, is force all threads that tried to call ThreadVariable.Lock to wait until no other threads had the variable locked then it could proceed. Obviously the code it processes between the lock and unlock should be as quick and effecient as possible so it does not create a major traffic jam.
Because my thinking is this "object" I am referring to as being in memory, most likely will play a big role in answering the question about getting the requests in a "one at a time" situation it may be the focus of the question is more like how would I create "an object" and store it in memory to be quickly and easily accessed?
And even more generically does this even sound like I am on the right track
I think the topic of "communication to and from users" will need to be a completly different thread.
I need to synchronize data between 2 tables. i need to update records on table2 corresponding to table1. I also need to add new records in table2 by getting new records from table1.
View 2 RepliesI have a Gridview that is populated with and ObjectDataSource set up to allow anonymous users to populate it. After logging in, the database is filled with the Gridview's data using the following:
[Code]....
The database's primary Key is filled by the "lblItemID" string at the beginning of the loop.
deleting the item from the database keying on this primary key. The gridview deletes the proper row using it's DeleteMethod, but obviously I don't have it set up properly to delete the same PK row from the database.
I really don't want to mess with the DataSource's DeleteMethod (and I'm not sure if this would help at all anyway), so is there a way to look for these deleted ItemId's and remove them from the database while executing this Loop statement?
I'm using Content Management System, DotNetNuke for my dynamic website. DNN itself they have one database, I named it dnnDB. Inside the dnnDB they have the users table which have the list of users. I need to be able to pull this set of information or synchronize to my own database, myDatabase for development purposes. I do not want to incorporate my database into dnnDB, afraid that I may corrupt the system.
View 4 RepliesI have created a sdf database in a mobile application.Now I want to synchronize that database to a sql server database.
View 1 RepliesWe have a fairly large system involving multiple applications running on Windows, written in .NET. These include a number of web applications using ASP.NET.
We have a number of unrelated web applications written in LAMP - Linux/Apache/MySQL/Php.
The greatest advantage we've seen in ASP.NET is the ease with which code can be shared between web applications, win-form applications, windows console applications, and windows services. We have signficant code in .NET assemblies that are shared across all of these environments.
Apache/Php has some significant advantages over ASP.NET as a web programming environment, but if there is anything in it that is equivalent to .NET when it comes to integrating code that is shared across non-web applications, I'm unaware of it.
What's the equivalent of PHP's $_FILES variable in C#? Or at least something that accesses the files in the same way. I've got an upload form that I can't change and need to find out how to get at these files.
View 3 RepliesWhat is the .Net equivalent of a JSP page?
View 4 RepliesI am making an Asp.Net application which does the following on the client computer:
Establish a Connection. Check client's cpu usage to see if it is idle or not.If the client is idle it starts executing a c application.While executing the script if client starts doing something (also checked by monitoring his cpu usage) stop signal is sent. Start signal is again sent to the client if he is back to his idle position. If the client is Ubuntu, I use ssh and execute what I want to.What is the way of doing this in Windows without the root access?
Can you let me know the equivalent of C/C++ #define in asp.net?
View 5 RepliesWhat is the equivalent to function mid in ASP page?
View 2 RepliesI'm using a DataReader to display informations stored in a table. I created Two button to go to next record and to go back. In VB6 I used this code :
While Not Recordset1.EOF
Recordset1.MoveNext
End While
In ASP.NET I didn't find a way to do like it, because DataReader hasn't the EOF property.
EDIT :
While Not Recordset1.BOF
Recordset1.MovePrevious
End While
How can I convert this last code (VB6) to ASP.NET?
I have some code I would like to execute very early in the lifecycle of a call to an ASMX function. For our ASPX pages, this code is in the Page_Init() function on a base class, from which all our ASPX pages inherit.
Is there an ASMX equivalent to the ASPX's Page_Init() function?
Better yet, is there an ASMX lifecycle diagram like the ASPX one? http://msdn.microsoft.com/en-us/library/ms178472.aspx
If there is an ASMX equivalent to Page_Init(), I assume I can implement code in a common base class, from which all my ASMX classes can inherit, correct?