Drastically altering view behaviors using custom DisplayFor templates C# MVC
One feature that I think is highly under-documented in the C# MVC framework is custom
By simply making folders in your views folder called
EditorTemplates you can use the
EditFor(a=>a.TypeHere) with any custom types you so choose.
So I thought to myself how this would be useful, and I have come up with a demo in github
Essentially it goes like this. I have a bootstrap grid that we could fill with multiple tiles. This would be good if you were to show a gallery of images, and perhaps certain tiles would have different behavior. In my example I have 1 tile that displays an image, and another tile that displays some text.
I created an interface called
ITile and had my ImageTile, and TextTile inherit from this interface.
So my controllers simply creates these tile objects. The main view loops over the tiles and calls a partial view that looks like this.
Then I created 2 templates in
Views/Shared/DisplayTemplates One named ImageTile.cshtml, and the other named TextTile.cshtml note: the razor file names have to line up with the type name.
Then in each of these views I have different html returned
Ok so I’m sure you are now thinking whats the point? My point is that our entire view infrastructure, has no idea the items in the
ITile collection will create different html. This allows the Controllers to add or change the downstream behavior based on SessionContext, or anything you wish. The ultimate thing this empowers is the ability to create a pluggable view infrastructure where the type inheritance control what occurs in the view layer. The huge downside is the debugging experience is not stellar.