No one has taught me how to use these, and I can\'t find much on how I should be using them 开发者_如何学Goproperly.
I have an MVC3 Application that allows a user to choose the database they want to use on initial login.
DataContext db = new DataContext(conString); var dvd = db.GetTable<DvdList>(); var query = from b in dvd
So, here is the situation - I insert an item in the database calling the AddtoObject() and then call SaveChanges().
I have a page that contains a dataset: protected void Page_Load(object sender, EventArgs e) { MyDefinedDataContext mydatacont = new MyDefinedDataContext();
a datacontext defined in a module(domain services ado.net ria) a page having add/delete methods whenever any method is executed, it is found that all the previous actions (NEW RECORD ADDITION and DEL
Initially I had written this query using LINQ-to-SQL var result = from w in PatternDataContext.Windows
I have two System.Data.Linq.DataContext instances of same type. There is a table Table1 in DataContext. I add an object in first DataContext instance to the Table1 using the InsertOnSubmit method and
Lets say I have a Playlist class with some referenced classes. The playlist entity collection is pla开发者_运维问答ced into the data context wrapper:
Can someone explain why the following code fails to update the database or what else I can do to troubleshoot?
加载中,请稍侯......