I’m new to MVC, and am not following how you’d do paging and sorting on a grid. I’m used to using the asp.Net GridView control with an ObjectDataSource pointed at objects in our business layer – and in that case the ODS handles all of the paging & sorting using the methods that our ORM … Read more
I have an object map similar to what’s listed below. When I try to bind the properties of NestedClass in a GridView I get the error:
If a web page needs some data, why not just have a SQLDataSource call a stored procedure? Why use an ObjectDataSource to call a business object that then calls the stored procedure? I understand that other apps (lets say desktop apps) built on the .net framework can access the business objects, but what if the application will always be only a web app?
I have a GridView that has a DataSourceID pointing to an ObjectDataSource. The ObjectDataSource points to a method that returns a LINQ IQueryable by using the TypeName, SelectMethod, and SelectCountMethod properties of the ObjectDataSource control. What happens is that the data loads properly upfront. However, on postback, if I remove the rows from the GridView and try to rebind using the explicit GridView.DataBind(), it doesn’t work. I know LINQ is returning the proper rowcount and such because I’ve called the countmethod and it returns the proper rowcount. Here’s a quick example:
I’m trying to add parameters to an objectDataSource at runtime like this:
I have a generic Repository<T> class I want to use with an ObjectDataSource. Repository<T> lives in a separate project called DataAccess. According to this post from the MS newsgroups (relevant part copied below):
Quoting the answer of Andrew Hare on the This Question.
Ok, so here is the setup. I am building a page that has a listview, a datapager, and 3 datapagerfield (2 x NextPreviousPagerField, 1 x NumericPagerField), and a objectdatasource to tide all of this together.
If I have an ObjectDataSource defined at design time, can I get a DataTable from that ObjectDataSource at runtime? I have a method that returns a DataTable that I am using for the Select method property of the ObjectDataSource.
I’ve got a GridView that I bind to a ObjectDataSource programmatically, like: