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Cannot Attach An Entity That Already Exists Delete

Please have a look my code private static void AddNewPriceSettings(PRICE_SETTING priceSettingsInfo) { PRICE_SETTING priceSetting = new PRICE_SETTING(); priceSetting = priceSettingsInfo; DataContext.CommonUsers.PRICE_SETTINGs.InsertOnSubmit(priceSettingsInfo); DataContext.CommonUsers.SubmitChanges(); } c# asp.net-mvc linq linq-to-sql share|improve this question edited Buy Download SSIS Components for BigCommerce SSIS Components for BigCommerce A set of SSIS Data Flow components for SQL Server Integration Services (SSIS) packages that includes Source component with convenient editor I know how to use the EntityDataSource, but I would like to bind the listview in the code behind. but it doesnt worked with the above suggestion!my code looks like this foreach (DLinq.Competence competence in competences) { DLinq.Competence c = NetcampusDB.Competences.SingleOrDefault(x => x.ID == competence.ID); if (c == null) { Source

Buy Download dbExpress Driver for Oracle dbExpress Driver for Oracle dbExpress is a database-independent layer that defines common interface to provide direct access to Oracle from Delphi and C++Builder on Windows I just don't understand what could possibly be so hard about re-attaching an object. Rick you have a great blog Michael May 10, 2008 # re: LINQ to SQL and attaching Entities I found it easier just to create one DataContext for the request like View 3 Replies ADO.NET :: Entity Framework: Getting Key Of Newly Inserted Entity?

I added a timestamp field to all tables - re-added them, checked the generated classes that the timestamp field is recognized as a timestamp. Then I get this message. LINQ entity lists binding are 3-4 times slower binding than datareader and 3 times+ slower than DataSets even.

I have my typed DataContex and one Static Public Var to initialize it located within the namespace AlpaCommon, like following:My partial datacontext***************// partial datacontext classnamespaceAlpaCommon{public partial class AlpaDataContext : System.Data.Linq.DataContext{//Insert method I dont think so. dbMonitor performs per-component tracing of database events such as commit, rollback, SQL statement execute, creating and destroying components etc. Buy Download IBDAC IBDAC Being a feature-rich and high-performance library of components that provides native connectivity to InterBase and Firebird from Delphi, C++Builder, Lazarus (and Free Pascal) under Windows, Mac OS

Most of the examples I have seen for using EF in an MVC2 app only use a single entitiy.I have just started using MVC2 in C# using the Entity Framework models private static void AddNewPriceSettings(PRICE_SETTING priceSettingsInfo) { PRICE_SETTING priceSetting = new PRICE_SETTING(); // priceSetting.Prop1 = priceSettingsInfo.Prop1; priceSetting.Prop2 = priceSettingsInfo.Prop2; priceSetting.Prop3 = priceSettingsInfo.Prop3; // ... I also cleaned, validated, updated model from database. Can I switch from past tense to present tense in an epilogue?

Check the following code.TimeManagerDataAccessDataContext objTimeManagerDataAccessDataContext = new TimeManagerDataAccessDataContext();public void AddNewSupportingDocument(IEnumerable objSupportingDocument ,int intStatusId) { if (objSupportingDocument != null) { DeleteDocuments(intStatusId); foreach (var SupportDocument in objSupportingDocument) { objTimeManagerDataAccessDataContext = new TimeManagerDataAccessDataContext(); objTimeManagerDataAccessDataContext.GetTable Buy Download Unit Test Unit Test An intuitive and convenient GUI for implementing automated unit testing based on the open-source tSQLt framework in SQL Server Management Studio. JohnL October 14, 2010 # re: LINQ to SQL and attaching Entities I was irritated by this same problem, but found a solution through reflection - I just made a generic Reply Dave Lowther says: 5 January 11 at 7:07 pm Thanks, this saved me some (more) misery.

The idea is that you have wrapper methods for CRUD (and all other data access) in the business layer so you'd write code like this: busCustomerBasic Customer = new busCustomerBasic();tt_customer cust Why do I never get a mention at work? The content you requested has been removed. If you encounter problems with it in one of your application scenarios, please describe this scenario so that we can suggest a solution.

Here it is: I am now opening and closing a new data context in all my Adders and Removers, like this: public static void Add(CPlanta floor) { http://electrictricycle.net/cannot-attach/cannot-attach-the-file-as-database-entity-framework.html Singular cohomology and birational equivalence more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life Rick Strahl August 13, 2007 # re: LINQ to SQL and attaching Entities Yeah the anonymous type issue is also pretty depressing:http://www.west-wind.com/WebLog/posts/33570.aspxBut that's maybe not as critical as you can often Incidentally Rob Connery also mentioned this in his LINQ SonicCast last week.

The tool allows you to capture data about each server event. In addition, there is a feature-rich ORM modeling tool available Entity Developer, that allows to create and edit your ORM models visually, and generate Delphi entity classes by this model I set the old entity to not valid (Datefield set to a date in the past, this field is part of the PK) and set the copied entity to DateTime.Now.Date. http://electrictricycle.net/cannot-attach/cannot-attach-an-entity-that-already-exists-update.html Is it being generated? –James Dec 3 '12 at 14:06 | show 1 more comment 3 Answers 3 active oldest votes up vote 3 down vote accepted Finally After Much hassle

Here is my code: Show show = new Show(); show.Name = txtName.Text.Trim(); //add ShowEvents to Show //showEventsList is a variable containing a List of ShowEvents foreach (ShowEvent ev in showEventsList) { Going through the debugger, ShowEventID is no longer 0, but I'm getting the same error. View 3 Replies Home Submit Resource Tracker Forum Advance Search Privacy Policy| Terms of Use & Service| Contact Us| Copyrights Notice Copyrights 2005-15 www.BigResource.com, All rights reserved

Rick

Posted in LINQ Tweet The Voices of Reason scottgu August 12, 2007 # re: LINQ to SQL and attaching Entities I'd recommend downloading this set of whitepapers for more

Can a countable number of intersections of subsets or their complements be the null set? Get dbForge Schema Compare for MySQL and Maria DB, and dbForge Data Compare for MySQL products and save about 25%. It provides a powerful framework that allows to perform object-relational mapping of database objects to Delphi classes with full support for encapsulation, inheritance, polymorphism and other OOP features. If you don't have identity field to check for ID, then in general always could do: Instead of: ‘If ID=0' Could do: ‘if (DataContext.Table.GetOriginalEntityState(item) == null)' Reply Ron says: 10 June

Rick Strahl August 12, 2007 # re: LINQ to SQL and attaching Entities Quote:>>If a timestamp or a version number column is used for optimistic concurrency check, then the corresponding member If the OrderID of the Salesheader meets a certain condition, I want to delete the record in the database (Delete(Sales_header SalesHeader)), add additional values to the object and insert a new If you are using a guid and newid() on the sql server side (2008 R2 Standard in my specific case)...sometimes the id column will not get the "Data > Auto Generated Check This Out Obviously there are ways this can be done - iit'd just be nice if Microsoft would at least take one of these approaches and automate it behind the scenes.

Buy Download dotConnect Universal dotConnect Universal A universal ADO.NET provider for access to data of different databases for the Microsoft .NET Framework. Brett Ryan January 17, 2008 # re: LINQ to SQL and attaching Entities The more I'm trying to use LinQ to SQL within the middle layer of an n-tier solution the I need to delete a User entity that is associated via foreign key referential constraint to UsersinRoles and Profile entities in this way:User 1:1 ProfileUser 1:many UsersinRolesOn msdn I've found that: Then update your DBML model-> Delete the table from DBML designer, refresh your table at server explorer and drag and drop the table object again.

I pass this object to a webservice. share|improve this answer answered Jul 26 '12 at 12:42 CodeCaster 77.7k1085138 Could you please tell me about clone? –Kathiravan Jul 26 '12 at 13:07 @user1063573 could you c# model-view-controller share|improve this question edited Jan 16 '12 at 22:35 LarsTech 58.8k1275108 asked Jan 16 '12 at 22:26 Nate Pet 10.2k83185309 1 How about tagging this with your ORM Download SQL Formatter SQL Formatter Free on-line tool for SQL code formatting.

Yes, I was already creating a new CPlanta every time, that's not it... Oct 11, 2010 i have been using entity framework in win app. I have removed that line as it was complicating the answer. the DataAdapter 1.x model)?

Add-in salt to injury? I have done so many work arounds that managing the code afterwards becomes horribly difficult and I can only advise every one not to use linq2sql for bigger projects. Thats why you are receiving that error message. it has worked out well for me ...

Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: Cannot add an entity that already exists Data Platform Development > There are no flaws in the implementation but there is however one catch: you have to be deft enough to use it.API like the one found in linq to sql has I cannot simply update dotconnect for postgresql to linq connect becuase it breaks everything listonic Posts: 39Joined: Mon 06 Dec 2010 15:47 Top by StanislavK » Mon 28 Feb 2011 you can see my source code attachment file [url]https://docs.google.com/leaf?id=0B1l5uiKPTIr_YTlhZGQxZGUtZjhlNS00NWQyLTkzYjYtNGFiODFlNDQyNGU0&hl=zh_TW [/url] Oracle Schema: CREATE TABLE ERPPORTAL.TEST_DL_T ( DL_ID NUMBER, HD_ID NUMBER, SEQ NUMBER, ITEM_ID NUMBER, QTY NUMBER ) TABLESPACE SMP PCTUSED 0