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  • LINQ2SQL and MS SQL 2000

    - by artvolk
    Good day! I have used LINQ2SQL with MS SQL 2005, but now I need to use it with MS SQL 2000. I have found only article on MSDN that tells about Skip() and Take() oddities on MS SQL 2000 (that's because it lacks ROW_NUMBER(), I suppose) and nothing more. Anyway, does anybody have expirience with LINQ2SQL and MS SQL 2000 combination. P.S. Just wondering: is it possible to model LINQ2SQL class on view, not a real table?

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  • Korean keyboard handling is different on Win 7 Ultimate K then on a regular Win 7

    - by user360162
    Hi, I have a Win32 application which hosts a windowless flash activeX. When I'm trying to enter Korean keyboard input on a regular Win machine (after adding Korean support), everything works fine. However, when I trying the same thing on a "real" Korean windows (Win 7 Ultimate K), the text comes out strangely. I.e., pressing the "z" button would yield "1K". Any ideas? Thanks in advace

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  • RTP Client Application on Android Mobile Device

    - by devang
    Hey folks,i am developing a RTP client on an Android device which can play streaming videos from a server. I am confused regarding how should i start about? i am thinking of developing a web app, using HTML,CSS and Javascript, which can later be wrapped in Android.is this approach correct? does javascript support real time media player? please guide me, i am a fresher and completely clueless..:(

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  • How to avoid using duplicate savepoint names in nested transactions in nested stored procs?

    - by Gary McGill
    I have a pattern that I almost always follow, where if I need to wrap up an operation in a transaction, I do this: BEGIN TRANSACTION SAVE TRANSACTION TX -- Stuff IF @error <> 0 ROLLBACK TRANSACTION TX COMMIT TRANSACTION That's served me well enough in the past, but after years of using this pattern (and copy-pasting the above code), I've suddenly discovered a flaw which comes as a complete shock. Quite often, I'll have a stored procedure calling other stored procedures, all of which use this same pattern. What I've discovered (to my cost) is that because I'm using the same savepoint name everywhere, I can get into a situation where my outer transaction is partially committed - precisely the opposite of the atomicity that I'm trying to achieve. I've put together an example that exhibits the problem. This is a single batch (no nested stored procs), and so it looks a little odd in that you probably wouldn't use the same savepoint name twice in the same batch, but my real-world scenario would be too confusing to post. CREATE TABLE Test (test INTEGER NOT NULL) BEGIN TRAN SAVE TRAN TX BEGIN TRAN SAVE TRAN TX INSERT INTO Test(test) VALUES (1) COMMIT TRAN TX BEGIN TRAN SAVE TRAN TX INSERT INTO Test(test) VALUES (2) COMMIT TRAN TX DELETE FROM Test ROLLBACK TRAN TX COMMIT TRAN TX SELECT * FROM Test DROP TABLE Test When I execute this, it lists one record, with value "1". In other words, even though I rolled back my outer transaction, a record was added to the table. What's happening is that the ROLLBACK TRANSACTION TX at the outer level is rolling back as far as the last SAVE TRANSACTION TX at the inner level. Now that I write this all out, I can see the logic behind it: the server is looking back through the log file, treating it as a linear stream of transactions; it doesn't understand the nesting/hierarchy implied by either the nesting of the transactions (or, in my real-world scenario, by the calls to other stored procedures). So, clearly, I need to start using unique savepoint names instead of blindly using "TX" everywhere. But - and this is where I finally get to the point - is there a way to do this in a copy-pastable way so that I can still use the same code everywhere? Can I auto-generate the savepoint name on the fly somehow? Is there a convention or best-practice for doing this sort of thing? It's not exactly hard to come up with a unique name every time you start a transaction (could base it off the SP name, or somesuch), but I do worry that eventually there would be a conflict - and you wouldn't know about it because rather than causing an error it just silently destroys your data... :-(

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  • practical security ramifications of increasing WCF clock skew to more than an hour

    - by Andrew Patterson
    I have written a WCF service that returns 'semi-private' data concerning peoples name, addresses and phone numbers. By semi-private, I mean that there is a username and password to access the data, and the data is meant to be secured in transit. However, IMHO noone is going to expend any energy trying to obtain the data, as it is mostly available in the public phone book anyway etc. At some level, the security is a bit of security 'theatre' to tick some boxes imposed on us by government entities. The client end of the service is an application which is given out to registered 'users' to run within their own IT setups. We have no control over the IT of the users - and in fact they often tell us to 'go jump' if we put too many requirements on their systems. One problem we have been encountering is numerous users that have system clocks that are not accurate. This can either be caused by a genuine slow/fast clocks, or more than likely a timezone or daylight savings zone error (putting their machine an hour off the 'real' time). A feature of the WCF bindings we are using is that they rely on the notion of time to detect replay attacks etc. <wsHttpBinding> <binding name="normalWsBinding" maxBufferPoolSize="524288" maxReceivedMessageSize="655360"> <reliableSession enabled="false" /> <security mode="Message"> <message clientCredentialType="UserName" negotiateServiceCredential="false" algorithmSuite="Default" establishSecurityContext="false" /> </security> </binding> </wsHttpBinding> The inaccurate client clocks cause security exceptions to be thrown and unhappy users. Other than suggesting users correct their clocks, we know that we can increase the clock skew of the security bindings. http://www.danrigsby.com/blog/index.php/2008/08/26/changing-the-default-clock-skew-in-wcf/ My question is, what are the real practical security ramifications of increasing the skew to say 2 hours? If an attacker can perform some sort of replay attack, why would a clock skew window of 5 minutes be necessarily safer than 2 hours? I presume performing any attack with security mode of 'message' requires more than just capturing some data at a proxy and sending the data back in again to 'replay' the call? In a situation like mine where data is only 'read' by the users, are there indeed any security ramifications at all to allowing 'replay' attacks?

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  • Ajax change language

    - by nCdy
    I saw in a lot of AjaxControlToolkit.resources.dll for different languages, even mine (Russian) in my bin folder so I guess that's real to change the language of my Ajax Calendar Extender. <asp:TextBox ID="TextBox4" runat="server" oninit="TextBox4_Init" /> <ajaxToolkit:CalendarExtender ID="TextBox4_CalendarExtender" runat="server" Enabled="True" FirstDayOfWeek="Monday" Format="dd.MM.yyyy" TargetControlID="TextBox4" /> <br /> It's English by default But how can I change it to my Language ? (or to the current culture language)

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  • What is O(n log n) or O(n log(log n))

    - by Mark Tomlin
    What does O, if indeed it is a Oh (As in the letter O) not the number Zero (0) mean? I think the n would be number, but I'm not sure as I'm not a 'real' computer programmer, just a hobbyist. And log would be logarithmic function, but I only know that because of smarter people then I have told me this, while never really explaining what a logarithm is. So please, in plain English, explain what this is, and the differences between the two (such as their applications.

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  • Microsoft DBMS on-the-fly aggregation

    - by ILya
    Some time ago i was reading an article about new MS DBMS technology. It's some kind of OLAP but on the fly. This technology can bind to data flows and then provide a real time aggregation. So the question is "what is it's name?". I need such a technology now but can't remember it's name... Or maybe there are some similar technologies?

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  • Validating String Characters as Numeric w/ Pascal (FastReport 4)

    - by user2525015
    I'm new to Pascal and FastReport. This question can probably be answered without knowledge of FastReport. Pascal is Delphi. FastReport4. I have a text box accepting an 8 character string as input. Each character should be numeric. I'm attempting to validate each character as numeric. I've tried using the val function... Procedure Val(S : String; var R: Real; Code : Integer); begin end; procedure thisinputOnChange(Sender: TfrxComponent); var S : String; error : Integer; R : Real; begin S := thisinput.lines.text; Val (S, R, error); If error > 0 then Button2.enabled := False; end; I got this code online. The explanation says that the function will return an error with a code greater than zero if the character cannot be converted to an integer. Is that explanation correct? Am I misinterpreting? Right now I am trying to set a button's enabled property to false if the validation fails. I might change that to a message. For now, I would like to get it to work by setting the button property. I'm not sure if I should be using the onChange event or another event. I'm also not sure if I need to send the input to the val function in a loop. Like I said, I'm just learning how to use this function. I am able to validate the length. This code works... procedure thisinputOnChange(Sender: TfrxComponent); begin if length(thisinput.lines.text) = 8 then Button2.enabled := True; end; Any suggestions? Should I use the val function or something else? Let me know if I need to provide more info. I might not be able to check back until later, though. Thanks for any help.

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  • Add a wall post to a page or application wall as page or application with facebook graph API

    - by blauesocke
    Hi, I wan't to create a new wall post on a appliaction page or a "normal" page with the facebook graph API. Is there a way to "post as page"? With the old REST-API it worked like this: $facebook->api_client->stream_publish($message, NULL, $links, $targetPageId, $asPageId); So, if I passed equal IDs for $targetPageId and $asPageId I was able to post a "real" wall post not caused by my own facebook account. Thanks!

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  • Twitter/Facebook API for Ruby.

    - by RPK
    I want to write a Ruby application through which: I can submit tweets to twitter. I can submit a post to facebook. I can manage real-time stats of tweets Is there any twitter/facebook api for Ruby?

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  • Plotting Scientific data in .net

    - by Dan Schubel
    Does anyone have any recommendations for plotting scientific data in .net (c# winforms). Some of my requirements are: real time plotting, 3D (waterfall), multiple axis, ability to accept BindingList as a data source and recognize any changes to the data. I also need a high level of user interactivity such as the ability to graphically select 1 or more series, draw regions. highlight part of a series, etc. So far I've looked at Nevron, Synchfusion, Infragistics, TeeChart and a few others.

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  • Crystal reports - Encoding Issue UTF-8 / iso-8559-1

    - by Lloyd
    Hi, Has anyone had this error before when running reports in Crystal Reports 2008: Character set encoding from transport information [UTF-8] does not match with character set encoding in the received SOAP message [iso-8559]. I presume this indicates a file needs changing, but trying to fint it is causing me a real headache. There are references to UTF-8 all over the server. Any help would be great. Thanks, Lloyd.

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  • Arranging models, views, controllers in a Kohana 3 project

    - by Pekka
    I'm looking at how to set up a mid-sized web application with Kohana 3. I have implemented MVC patterns in the past but never worked against a "formalized" MVC framework so I'm still getting my head around the terminology - toying around with basic examples, building views and templates, and so on. I'm progressing fairly well but I want to set up a real-world web project (one of my own that I've been planning for quite some time now) as a learning object. I learn best by example, but example-based documentation is a bit sparse for Kohana 3 right now - they say so themselves on the site. While I'm not worried about getting into the framework soon enough, I'm a bit concerned about arranging a healthily structured code base from the start - i.e. how to split up controllers, how to name them, and how to separate the functionality into the appropriate models. My application could, in its core, be described as a business directory with a main businesses table. Businesses can be listed by category and by street name. Each business has a detail page. Business owners can log in and edit their business's entry. Businesses can post offers into an offers table. I know this is pretty vague, but I don't want to cram too much information into this question. I'll be more than happy to go into more detail if needed. Supposing I have all the basic functionality worked out and in place already - list all businesses, edit business, list businesses by street name, create offer, and so on, and I'm just looking for how to fit the functionality into a MVC pattern and into a Kohana application structure that can be easily extended: Do you know real-life, publicly accessible examples of "database-heavy" applications like directories, online communities... with a log-in area built on Kohana 3 where I could take a peek how they do it? Are there conventions or best practices on how to structure an extendable login area for end users in a Kohana project that is not only able to handle a business directory page, but further products on separate pages as well? Do you know application structuring HOWTOs or best practices for Kohana 3 not mentioned in the user guide and the inofficial Wiki? Have you built something similar and could give me some recommendations?

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  • How does cobol store and retrieve data?

    - by controlfreak123
    I'm starting to learn about COBOL. I have some experience writing programs that deal with sql databases and I guess I'm confused how cobol stores and retrieves data that is stored in a mainframe for example. I know that it's not like relational databases but every example program I've seen takes data straight from the command line and I know thats not how real world COBOL programs process the data. Can someone explain or show me a good resource that can explain it?

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