savechanges

问题 I am working with Entity Framework on a new Project. I've been using EF since a year ago. Today i've tried to generate Entity Data Model with Visual Studio (2008 SP1 and 2010) and it is generating object context properties and entitysets but has not generated SaveChanges method. I've even tried with databases that i've used previosuly to generate entity data models. I don't know what's happening. I used my laptop and my desktop but is not working on both even when i've done it before in both.

问题 After change customer details from magento 1.9 changes not reflect on OroCRM almost 2 days over still not changes not reflect on OroCRM. How to do auto sync in every changes at the same time. 来源： https://stackoverflow.com/questions/60296980/magento-1-9-orocrm-update-sync-not-working-properly

问题 I'm building an ASP.NET MVC site using the ADO.NET Entity Framework. I have an entity model that includes these entities, associated by foreign keys: Report(ID, Date, Heading, Report_Type_ID, etc.) SubReport(ID, ReportText, etc.) - one-to-one relationship with Report. ReportSource(ID, Name, Description) - one-to-many relationship with Sub_Report. ReportSourceType(ID, Name, Description) - one-to-many relationship with ReportSource. Contact (ID, Name, Address, etc.) - one-to-one relationship

问题 I have a TextField in my settingsController that i can modify selecting a name from a pickerView, the problem is this : when i change the text of my textField i also change the text of a label in another controller, it work but when i close and reopen my app the label is empty, i can't find a way to save the text that i give it with the pickerView. My code in the settingsController override func viewDidLoad() { super.viewDidLoad() var defaults: NSUserDefaults = NSUserDefaults

问题 Studying asp.net mvc 3 + EF code-first. I am new to both. My example is trivial, but I still can't make it work. Missing something simple and obvious... I've got a class: public class Product { [HiddenInput(DisplayValue = false)] public int ProductID { get; set; } [Required(ErrorMessage = "Please enter a product name")] public string Name { get; set; } [Required(ErrorMessage = "Please enter a description")] [DataType(DataType.MultilineText)] public string Description { get; set; } [Required]

问题 Studying asp.net mvc 3 + EF code-first. I am new to both. My example is trivial, but I still can't make it work. Missing something simple and obvious... I've got a class: public class Product { [HiddenInput(DisplayValue = false)] public int ProductID { get; set; } [Required(ErrorMessage = "Please enter a product name")] public string Name { get; set; } [Required(ErrorMessage = "Please enter a description")] [DataType(DataType.MultilineText)] public string Description { get; set; } [Required]

问题 I have a kendo Grid that I make changes to and this saves to database. There is a button on the form that I submit additional information to a different database. I would like to check that the kendo grid has all changes saved when I click this button. If there are still some outstanding changes(red arrow in kendo grid) the user will have to save changes before proceeding. Can this be achieved with Javascript? 回答1: In the past I was able to determine if there were unsaved changes by reading

问题 When I update a table from a Form through Autogenerated EF, if I remove some data-columns from the view form because I don't want to be editable, that columns are updated with null value, how can avoid this behavior? I read here: Entity Framework: Ignore Columns removing it from the model, but not always I want to ignore these datacolumns. thank! 回答1: asp.net MVC provide you with UpdateModel method, look on the overload protected internal void UpdateModel<TModel>( TModel model, string prefix,

问题 My code is pretty simple: Context.AddObject("EntitiesSetName", newObjectName); Context.SaveChanges(); It worked fine, but just one time – the first one. That time, I interrupted my program by Shift+F5 after the SaveChanges() was traced. It was a debug process, so I manually removed a newly created record from a DB and ran a program again in the debug mode. But it does not work anymore – it “hangs” when SaveChanges() is being called. Another strange thing that I see: If I write before

问题 My code is pretty simple: Context.AddObject("EntitiesSetName", newObjectName); Context.SaveChanges(); It worked fine, but just one time – the first one. That time, I interrupted my program by Shift+F5 after the SaveChanges() was traced. It was a debug process, so I manually removed a newly created record from a DB and ran a program again in the debug mode. But it does not work anymore – it “hangs” when SaveChanges() is being called. Another strange thing that I see: If I write before