savechanges
What is the equivalent for Hibenate.saveOrUpdate() in entity framework
In entity framework you have to write a lot of code for saving or updating a single entity: using (DataContext context = new DataContext())[详细]
2023-04-08 15:00 分类:问答How to save dynamically changed HTML?
I have around 8 div items arranged in UL LI list. Each has unique ID, and specific content.These items are sortable, I am using jquery UI for this. Once user drag and drop component position of list i[详细]
2023-04-07 07:50 分类:问答How do I save a NavigationProperty on an Entity from a different context?
I have two database tables, one for Events and one for RecurrenceRules. Events have a FK that points to a RecurrenceRuleID.[详细]
2023-04-06 01:10 分类:问答Entity FrameWork - Exception on SaveChanges
I have this code saving a simpleEntity: ExecutionEngineEntities db = new ExecutionEngineEntities(); Task task = new Task();[详细]
2023-04-05 08:49 分类:问答Entity framework doesn't save data entries in database
At first I should mention that this problem only occurs in windows forms applications and the same program in web mode for example with MVC3 works perfect.[详细]
2023-04-03 08:00 分类:问答how do I implement a "Do I Need To Save" mechanism for a data container?
Assume there is the BindingList<Person{Name, age}> class and a PersonManager class that hosts the list.[详细]
2023-03-31 00:25 分类:问答EF 4.1, POCO: Reference type properties are not updated in case AutoDetectChanges=false
EF 4.1, POCO: I turned off AutoDetectChanges (Configuration.AutoDetectChangesEnabled = false) to speed up data update. Then I run Add or Attach with entity state changed to EntityState.Modified. All t[详细]
2023-03-28 18:41 分类:问答how to ignore errors in SaveChange EF4
Please see to example1. If some of the data will be entered incorrectly, EF4 will not survive nor any record.[详细]
2023-03-20 07:07 分类:问答How cancel SaveChanges
I make first SaveChanges and flies exception (UpdateException). And I make second SaveChanges and againe fliyng first erorr.[详细]
2023-03-20 01:05 分类:问答How to save the sate of my Activity
I have an EditText followed by a list view under it. So it works like this - when u type something in the edit text it shows items from the list which match the text above.[详细]
2023-03-19 09:44 分类:问答