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  • Updating multiple tables at the same time in Linq-to-SQL

    - by kiran
    How do I update two tables at the same time using Linq-to-SQL? var z = from a in db.Products join b in db.ProductSubcategories on a.ProductSubcategoryID equals b.ProductSubcategoryID join d in db.ProductCategories on b.ProductCategoryID equals d.ProductCategoryID select new { ProductName = a.Name, ProductCategory = d.Name, ProductSubCategory = b.Name, Cost = a.StandardCost, discontinuedDate = a.DiscontinuedDate, ProductId=a.ProductID };

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  • ASP.Net MVC, strongly typed view with DateTime not accepted?

    - by Anders Juul
    Hi all, I wish to create a view like <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<System.DateTime?>" %> but I get an error saying that DateTime must be a reference type in order to use for parameter TModel. Fair enough, but I google plenty of examples that implement just what I try to achieve. Any clues as to what I need to change/install/update? Any comments welcome, Anders, Denmark

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  • Offline backup synchronization

    - by Pavan Kumar
    There is a Central Server running Windows Server 2003 and SQL Server 2005 and there are 7 client machines situated in various places and has XP Pro & SQL Server 2005 installed in all of them. They are not interconnected so they are physically seperate. One person goes to each of these centers maybe twice a month and takes the backup (Full database consisting of mdf and ldf files) with a pen drive and brings it to the Central server which contains the central database holding same schema as all the other client databases. I need to synchronize each backup database (belonging to different centers) one by one to update the existing data or inserting new data in the central database . The solution i got was Replication. The pendrive is brought to central server consisting of 7 instances of the databases and then the databases is attached to the central server one by one to the same SQL Server where the central database exists. Then my idea was to replicate the backup database one by one i.e using single subscription (Central Database) and multiple publication ( i.e 7 instances of databases in my case) toplogy by performing replication locally (i.e in the same machine). So i tried to develop a UI in C# .Net to programatically run the Transactional Replication with push subscription using RMO Programming (which is incomplete as of now because there is no point in developing when you already know it is not the solution). Transactional Replication can either be set to initialize with a snapshot or without a snapshot. If i go for the first option i.e with a snapshot , the data whatever is present in Central Database is overwritten by the new data . So the data present initially in the central database is lost. If i try to initialize without snapshot , no data (the data already has the updated and new data) will be sent from the backup database to server. The replication will work in a scenario where any incremental changes is done only after you set the replication . So the initial data whatever was present in the backup database when setting up the replication will not be replicated when running the snapshot agent for the first time to synchronize. Only changes in the backup database thereafter will be reflected to the central database .(Remember I am not going to insert new data or make any changes to the backup database after i attach it to the Central Server. ) So this solution is not feasible. I want a solution for synchronizing from one client database to central database present in the same machine using C#.NET. If you can provide me small example maybe with two databases(with same schema) DB1(Client) to DB2(Server) consisting of one or two tables it will be very helpful. The synchronization is not bidirectional.I want to only update existing data or insert new data from DB1 to DB2 (DB2 may contain some data initially). Thanks and Regards Pavan

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  • SQL Replace Into question

    - by Matt
    With Replace Into, if I have two fields. FirstName LastName. The table has John Smith in it, if I was to run REPLACE INTO tblNames (FirstName, LastName) VALUES (John, Jones) Would that replace Smith with Jones, or create a new name? What determines if its an Update or and Insert?

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  • 3 tier with ASP.NET, C# and Oracle 11g

    - by ephraim
    Hi I am new to .NET, want to follow N-tier approach using Visual Studio 2010(ASP.NET MVC + C#),IIS and Oracle 11g(installed on the remote linux machine). I need to have Presentation, Business Logic, Data Access and Data Tiers. Can anyone give me site/example application with the following fuctionality: insert, retrieve, delete and update/modify data in the database. A step by step guide will be highly appreciated. Thank you in advance

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  • Castle ActiveRecord optimistic locking on properties

    - by Daniel T.
    Can Castle ActiveRecord do optimistic locking on properties? I found optimistic locking for the entire class, but not for an individual property. In my case, I need to make it so that adding/removing elements in a collection does not update the version number of the entity (so for example, adding a Product to a Store without changing any of Store's properties will not increment the version number).

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  • What's an appropriate HTTP status code to return by a REST API service for a validation failure?

    - by michaeljoseph
    I'm currently returning 401 Unauthorized whenever I encounter a validation failure in my Django/Piston based REST API application. Having had a look at the HTTP Status Code Registry I'm not convinced that this is an appropriate code for a validation failure, what do y'all recommend? 400 Bad Request 401 Unauthorized 403 Forbidden 405 Method Not Allowed 406 Not Acceptable 412 Precondition Failed 417 Expectation Failed 422 Unprocessable Entity 424 Failed Dependency Update: "Validation failure" above means an application level data validation failure ie. incorrectly specified datetime, bogus email address etc.

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  • Google Maps: marker icons are multi over same location, why?

    - by JakiT
    I'm using Google Maps and have the map set to height/width=100%. I noticed that when I resize the browser window, my map marker icons appear to redraw on top of the same location. Meaning, if I should only have 1 map marker icon on "987 Main St", when I resize the browser window - multiple map marker icons are being now draw on top of "987 Main St" that shouldn't be there. Any ideas why this is happening and how to prevent it? UPDATE: Link to actual code

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  • Suggest the best options to me to design the dynamic web interface using PHP MYSQL and AJAX

    - by Krishna
    Hello, I am designing a web interface for a company. I am describing the company's profile: company is currently having 5 branches and planning to extend their branches all over the country. it is an insurance surveying company. they are dealing with 6 Categories in the insurance domain, vide .. Engineering Fire Marine Motor Miscellaneous Risk Inspection and branches named as b1, b2, b3, b4, b5 and Extending. and finally they have contract with 22 companies. For each claim they are assign a unique ID. like contractcompany/category/serialno Ex: take a contracted company names as xxx, sss, zzz. xxx/Engineering/001 sss/Engineering/001 . . . xxx/Enginnering/002 sss/Engineering/002 . . . xxx/Fire/001 sss/Fire/001 . . . xxx/Fire/002 . . . xxx/Fire/002 . . . and so on..... by this way they issue the unique ID for each claim. Finally what i want is developing the interface with PHP mysql and ajax auto generating the unique id for each claim. store full details of the claims with reference to unique id. show all claims in one page, and they can view by branch wise and category wise. send monthly Report (All claims they have given and status of claims) to contract companies. give access to contracted companies, but they can view only their respective claims. Each claim has its own documents. So they can be uploaded by own company users or administrator. these files are associated with unique ID. contracted companies can view files. Give access to branches to enter new claims and update old claims. Administrator can create, update and delete all the claims and their details. Only administrator can grant new users (own company branches / contracted companies) Finally the the panel is completely database driven. Could any body can help. Thanks in advance Kindly do the needful and oblige Thanks and Regards Krishna. P [email protected]

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  • ASP.NET GridView EditTemplate and find control

    - by Geetha
    In the GridView we are using an edit button. Once the edit button is clicked Controls in the edit template will display in the same row with update button. That row has two dropdownlist controls. Process flow: controls:d1 and d2 d1 is using sqldatasource for item display : working fine. d2 is using codebehind code to load the item based on the selected value in the d1 : Not working How to find the control in the edit template to display item value for d2?

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  • How do I use SVN effectively?

    - by Tim Rogers
    I have an SVN repository that I've set up on my VPS, and I know all the basics (update, commit), but I don't know what all the other options mean. I am running TortoiseSVN on Windows (which is great!) and can see all these features like branching, locking, merging and patching! What do all these things mean? Is there anywhere with a good guide about how all the little bits and pieces in SVN work? Thanks, Tim

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  • how to bind a winforms to a field ?

    - by MemoryLeak
    I use winforms to develop application, I want to know how can I use data binding to bind two radio button to a database field ? And if bind to a database field is too complicated, then can I save the value manually while leave other field bind to textbox and automatically update the value?

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  • How do you return a partial view with spark?

    - by runxc1 Bret Ferrier
    I am using the SparkViewEngine and I am calling an action that I want to return a Partial View to update just a section of the page. When I return the view on the action the masterpage and all of its content gets returned. How do you tell a partial in spark to just return the content of the partial view and not put the content inside the application.spark file??

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  • What is the best way to document a system metaphor?

    - by SDReyes
    A metaphor help us to communicate with our project stakeholders, using a shared set of concepts and analogies. we develop them all the time, in one way or another. even the XP- programming highly recommend to get it defined since project start. How do you write such thing down in a document (specially if it already exists)? maybe a dictionary-like approach? UPDATE: perhaps a thesaurus would do it better (synonyms sum).

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  • common problem with Hibernate/NHibernate and child IDs

    - by tyndall
    I'm asking both Hibernate and NHibernate groups because I'm thinking this may be a common issue seen on both. What does it usually mean when you call a saveOrUpdate on a child object and... 1) If it is an insert everything works fine. 2) If it is an update its wiping out the parent ID in the database.

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  • Detecting USB drive insertion and removal using windows service and c#

    - by Kb
    Looking into possibility of making an USB distributed application that will autostart on insertion of an USB stick and shutdown when removing the stick Will use .Net and C#. Looking for suggestion how to approach this using C#? Update: Two possible solutions implementing this as a service. - override WndProc or - using WMI query with ManagementEventWatcher

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  • Changing a formwindows backcolor from a panel

    - by JPJedi
    I have a panel that is docked to the right side of a windows form. I set a color with a setting on the panel but I want to then update the main form (not the panel) backcolor to the new setting. But when I use me.backcolor = setting it changes the panels backcolor. This is also with VB.net windows forms with Visual Studios 2008 Thanks

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