I have the exact same problem as described in this post (event content / tags objects): LINQ to entities - Building where clauses to test collections within a many to many relationship
I\'ve published wcf dataservice project to IIS7 with .NET 4 installed on that server. Everything worked fine, but when i called SaveChanges from client, service returned error:
I am curious what the best practice is for this situation in Entity Framework 4.0. I have the following Entity Map:
I have a strange little issue with a WCF RIA service I\'m using in a SL4 application. Here is the code for a button click handler I\'ve got:
I am having a very tough time with this one.I have a Navigation property called Attachment that is part of an entity called ContentChannel.ContentChannel is a many to one relationship with KioskType.
I have a number of pending changes in my object context when I call SaveChanges. Somewhere in there is an entity with a value for a column that is too long.This results in SqlException: String or bina
Okay, here\'s the scenario.I have 3 tables.One called aspnet_Users one called Categories and a linking table called User_Categories.aspnet_Users and Categories both have primary keys (UserId and ID re
I\'m following a tutorial by Scott Gu that refers to a class named DbContext. I can\'t find it on any namespace on framework 4 and it seems to me it was renamed from CT4 DbContext t开发者_开发百科o .n
So I\'m trying to create a generic select by ID method for a base repository class. In order to achieve this I\'m using EF4 with POCO\'s. I created an interface with a getter called Id and successfull
I found this similar question here, but开发者_运维百科 this is really old. Was it implemented in the latest version?The answer is short and simple. Nope
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