ASP.NET MVC: Partial class: Cast Model to Generic class?

Question

I'm building a generic grid to use in ASP.NET MVC applications. I'm having troubles with making a partial view that gets a generic class passed to it.

I have prepared a small sample project which demonstates what I want to do. Download it here.

In the HomeController I have 2 controller actions that use my generic grid class to prepare Employee and Department data to be showed by the reuseable partial view /Shared/SimpleTrustGridViewer.ascx.

The problem is that I currently only get the Employees controller action to work when I make the partial view inherit like this:

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<TrustGrid<Employee>>" %>

The Departments controlleraction will throw the error i'm stuck on.

I'm hoping someone can take a look at the sample project I prepared and can come up with an easy simple way to make the partial view work for both Employees and Departments. There is no database required or anything, I just use fake repositories.

You can copy paste the fixing code here or link or mail (*myUserNameWithoutSpace*[email protected]) the fixed sample project.

Any help is much appreciated!

(This is a follow up on this question, as I was unable to get a good answer there. I have prepared a sample project now that you can use to demonstrate what needs to be done.)

Edit: Don't mind the IColumn and ITrustGrid interfaces too much, I played around a bit with those while trying to fix the problem.

Thanks.. I guess :-) if you have remarks about the approach, don't hold back. I'm unexperienced at making reuseable/generic stuff like this. — Thomas Stock
– Thomas Stock, Commented May 19, 2009 at 8:40

MichaelD · Accepted Answer · 2009-05-19 15:11:14Z

1

Extend a method like .getTrustGrid() so you can get the same type you need.

answered May 19, 2009 at 15:11

MichaelD

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1 Comment

Thomas Stock Over a year ago

I actually have worked out a solution that uses a .GetTrustGrid() to get a non-generic TrustGrid class. I'll post it when I'm done testing it.

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