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• Is OOP based on any branch of mathematics?

  - by ektrules

  I know relational databases are based on set-theory, functional programming is based on lambda calculus, logic programming is based on logic (of course :)), and now that I think of it; I'm not sure if imperative and generic programming is based on any particular branch of mathematics either.

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• how to bind gridview through linq

  - by Manoj Wadhwani

  I am using linq to sql Currently i am binding gridviw through linq which query written in business logic call . i have extract record through query in business logic class and i want to bind that particular data to gridviw and return data . how to retrun data which type is array. code is mention below: CMSBusiness.DataClasses1DataContext db = new DataClasses1DataContext(); var cate = from p in db.categoryTables select new { categoryId=p.categoryId, categoryName=p.categoryName, categoryDesc=p.categoryDesc }; how to return value and bind gridview , Please suggest

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• Responding to preference updates in Android

  - by hgpc

  I am calling a PreferenceActivity from another activity and then updating the application state (ie: changing the font size) on onActivityResult, based on the preference changes. I was thinking it would be better to put the state update logic in the PreferenceActivity. That way I don't have the duplicate the logic in each activity that calls the PreferenceActivity. What's the best or correct way to do this?

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• why no += operator for vectors in stl

  - by Akshay Bhat

  I am curious? What high fundu logic goes behind not implementing: result+=vector1; where both result and vector1 are stl vectors. Note: i know how to implement that bit, but i need to know what logic, the sages who designed STL were using when they chose not to implement this feature?

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• Doctrine: Keep 'Timestampable' behavior when using stored procedures?

  - by ropstah

  I have complex logic which is not possible (too slow) to run through PHP with Doctrine, so I need to create a stored procedure for this. The logic also includes inserting/updating records in a table using the Timestampable behavior. How do I preserve this behavior in the stored procedure?

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• How does MediaWiki calculate the file path to an image?

  - by Gillian

  Hi All, I'm just installing MediaWiki (loving it). I'm lookin at this for adding images. I can se the logic of [[File:MediaWiki:Image sample|50px]] but where so I set the filepath for "File" (nothing obvious in LocalSettings.php) ... or is there some other logic at work? I'd appreciate any help Thanks

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• Generic overloading tells me this is the same function. Not agree.

  - by serhio

  base class: Class List(Of T) Function Contains(ByVal value As T) As Boolean derived class: Class Bar : List(Of Exception) ' Exception type as example ' Function Contains(Of U)(ByVal value As U) As Boolean compiler tells me that that two are the same, so I need to declare Overloads/new this second function. But I want use U to differentiate the type (one logic) like NullReferenceException, ArgumentNull Exception, etc. but want to leave the base function(no differentiation by type - other logic) as well.

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• HTML Dynamic Number of Dropdowns

  - by Evilsithgirl

  I have this form on which I would like to create a dynamic number of dropdowns. I have a list of categorized applications which I would like each to have its own dropdown that submits data for each dropdown. The dropdown options will be the same for each. Here is my code. I am not sure how to pass the unique data to the server. As you can see I currently have an iteration over a list of applications that I would like to make each select in that iteration its own dropdown. Thanks in advance. <html:form action="/CategorizeApps.do"> <h3>Uncategorized</h3> <br/> Categorize each application using the dropdown menu then click categorize.<br/> <table class="list"> <thead> <tr class="controls"> <td><input type="submit" name="btnAction" value="Categorize"/></td> </tr> <tr class="fields"> <td>ID</td> <td>Name</td> <td></td> </tr> </thead> <tbody> <logic:iterate id="uncat" name="appsUncat" scope="session"> <tr class="hlist"> <td><bean:write property="id" name="uncat" scope="page"/></td> <td><bean:write property="name" name="uncat" scope="page"/></td> <td><select id="category" name="category"> <logic:iterate id="categories" name="Categories" scope="session"> <option value="<bean:write name="categories" property="id" scope="page"/>"><bean:write name="categories" property="name" scope="page"/></option> </logic:iterate> </select></td> </tr> </logic:iterate> </tbody> </table> </html:form>

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• Implementing GetHashCode

  - by dotnetdev

  Hi, What constitutes a good implementation of the GetHashCode method? I did some googling, and found some goodlines (MSDN) but it seems like the logic just manipulates two numbers stored as fields in the class. Is the actual logic this simple to implement this method?

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• Can I check if e-mail address is valid?

  - by simple

  How can I implement following logic? User registers with an e-mail address If provided e-mail address is a valid email address Then user account get's activated or if it is a fake email then user account is not activated I doubt that I can catch the - "Delivery failed reply message", right? anyhow how would you suggest to implement the above logic? PS. I will have to find a way no matter what, client wants it =)

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• question about windows controls changed event

  - by Mike

  I have several controls on my form and on changed event the logic entity properties are changed. Is it possible not to implement changed event for every control,but do it in one place and update my logic entity when user is making changes on the form?

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• Proper Form Application Design

  - by Soo

  I'm creating a WinForm application in C# and one of its functions is displaying text in text boxes. I'm coding the logic for querying a database in a separate class and am unable to access the text box element in the class I'm creating (I'm getting a "name" does not exist in the current context error). Do I put all of my form logic into my Form1.cs file?

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• c++ : looking away to implemnt this senario

  - by user63898

  Hi im looking to find how to implement this scenario: i have logic code that is inside function, now i like to be able to execute this function in a separate thread. now what i have is a raw implementation of this .. i simple Init the Thread that in its Start/Run method i keep the function logic . how can i make it more generic ? so i could send the function ( mybe function pointer ) to generic thread factory/pool ? in c++

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• google maps feeds: can I get all information ?

  - by Patrick

  hi, can I use google maps feeds to get all information about local business, restaurants, etc ? I need to build my application, not necessarily map based, about local business in my city. I was wondering if I can use google maps as dataset. thanks Patrick

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• not a valid iso file error

  - by user23950

  I'm trying this windows 7 usb/dvd download tool that I discovered from ars technica: http://arstechnica.com/business/news/2009/12/-the-usb-flash-drive.ars But I don't know why my windows 7 iso file does not work and its saying that its not a valid iso file. What do I do, do you know of other tools that can burn / extract iso file contents to a flash drive? Except the tool that is always showing up when you search in google, the command prompt one: http://arstechnica.com/business/news/2009/12/-the-usb-flash-drive.ars/2 A free tool for windows xp or 7

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• Apps management dashboard: what features should be in it?

  - by Christophe

  On a dashboard to manage business web apps (CRM, email marketing, collaboration, accounting...) from a single place which features should be a must have and nice to have? Those that come to mind are SSO, unified billing, users provisioning. What else? What should be available to the super user (admin) vs the business user? Do you know any products of this kind in the market today? Thanks Christophe GetApp.com

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• Sysadmin Dress Code

  - by andyh_ky

  What kind of dress code do you have at work as a systems administrator? Business casual, casual, some days casual, some days business casual, formal? It's safe to say "it all depends on the type of day we're planning on having" - but what happens if you need to speak to some C level personnel? Do you have a spare set of clothes?

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• Antivirus for Windows Server 2008 R2

  - by raja

  I am trying to get a Antivirus server for my Virtual Private Server that has Windows Server 2008 R2 x64 1.5 GB RAM and 40 GB HD. I see people have suggested for NOD32 or Kaspersky but they are not offering Internet security for one server in business edition (it starts with at least 5 PC) and they says I can't install home edition on my VPS as this is for business purpose. Is there any good antivirus/internet security program that I can buy for my single VPS? Any suggestion will help me. Thanks

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• Multi Monitor setup goes crazy after locking/unlocking Vista machine

  - by Mark Henderson

  My Vista Business machine, running Ultramon, has three monitors attached. When I lock the machine, the monitor layout stays correct. When I unlock it, I watch as all my screens flicker (as they are being re-configured), and Vista chooses some crazy layout for the monitors. The most recent one is below, but it's never consistent. Any ideas what might cause this? It's Vista Business, with UltraMon 3.0 (exiting Ultramon makes no difference).

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• ArcServer creates additional jobs

  - by wullxz

  We're running CA ARCserve Backup r12.5 (Build 5854) - Small Business Server Edition on our Small Business Server 2008. There is a daily job which saves the systemdrive, exchange and 3 databases to our backup storage. It seems like this daily job creates these additional jobs every time it runs. I don't know why it's doing this. Can anybody tell me why this is happening? (I'm sorry this screenshot is in german... "Ergänzungsjob" means something like "extensionjob" or "additionjob")

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• Link Google Profiles? [closed]

  - by Jon H

  I have two Google accounts. One GMail account that I use for personal stuff and one hosted domain that I use for business. My Google Profile is linked to my Gmail account - is it possible to associate it with my business account? I'm prompted to ask by the new 'Social Search' feature from Google, which while great, can only pick up contacts from one account at a time.

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• How to prevent wifi router from broadcasting multiple ssids?

  - by user1092288

  I have the following Wi-Fi router: http://www.beetel.in/business-solutions/international-business/adsl/450-four-port-wifi-modem And I am also posting screen shots of ISP settings (from 192.168.1.1). Problem is, my Wi-Fi router is broadcasting multiple SSIDs (even the SSIDs which I used in the past and aren't entered in settings at present). How do I resolve this to broadcast single SSID? I have already tried factory settings restore. SSID1 Settings SSID2 Settings SSID2 Settings- greyed-out, unable to change anything

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• Fastest way to convert datatable to generic list

  - by Joel Coehoorn

  I have a data tier select method that returns a datatable. It's called from a business tier method that should then return a strongly typed generic List. What I want to do is very similar (but not the same as) this question: http://stackoverflow.com/questions/208532/how-do-you-convert-a-datatable-into-a-generic-list What's different is that I want the list to contain strongly-typed objects rather than datarows (also, I don't have linq avaiable here yet). I'm concerned about performance. The business tier method will in turn be called from the presentation tier, and the results will be iterated for display to the user. It seems very wasteful to add an extra iteration at the business tier, only do it again right away for the presentation, so I want this to be as quick as possible. This is a common task, so I'm really looking for a good pattern that can be repeated over and over.

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• ASP.NET/VB.NET problem solving help!

  - by Jonesy

  Hi folks, Got a problem I need help with. Basically I'm gonna develop a form (part of a bigger web app) that lists a load of clients and there business contact, tech contact 1, and tech contact 2. The idea is rapid data entry. So one form shows each client with their contacts in dropdowns and I we can change each one then click a save button to do a mass save. the database looks like this: tblClient ClientID ClientName BusinessContact Tech1 Tech2 My idea was to use a repeater to format the data like this: Client Business Contact Tech1 Tech2 Client2 Business Contact Tech1 Tech2 What I'm stuck on is how to do the mass update? Can I do something like for each item in Repeater1 then do an update SQL statement? -- Jonesy

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• Moving from WCF RIA Beta to RC: best practices?

  - by Duncan Bayne

  I have an existing WCF RIA project built on the Release Candidate; I'm now moving to the Release version & have discovered many changes. David Scruggs made the following comment on his (MSDN) blog: "If you’ve written anything in SIlverlight 4 RIA Services, you’ll need to rewrite it. There has been a lot of refactoring and namespace moves." Having made a brief attempt to compile the old solution with the new RIA framework I'm inclined to agree. My current plan is to: remove the Silverlight Business Application projects from the Solution rebuild the EF4 items from the database create a new Silverlight Business Application project re-add the files (XAML, CS) from the old Silverlight Business Application project Does this sound like a reasonable approach? I think it's cleaner than trying to manually alter the existing project.

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