ASP.NET MVC Model Binding a Collection With a Prefix
I want to bind a collection using a prefix, like so
public ActionResult Whatever([Bind(Prefix = "Prefix")] CustomModel[] models)
开发者_StackOverflow中文版I created form elements using
<%= Html.TextBox("Prefix.models[" + i + "].Property") %>
which generated html inputs like this
<input id="Prefix_models[0]_Property" name="Prefix.models[0].Property" />
My problem is that the default model binder will not bind with a prefix. I get null for the models arg in the action method.
If I strip the prefixes from the html and remove the Bind attribute, everything works fine. I cannot imagine that the default model binder won't handle a prefix on a collection, so I must be doing something wrong.
Please help. Cheers!
Prefix inside of [Bind] isn't prepended to the parameter name, it replaces the parameter name entirely. So if your action method has this signature:
public ActionResult MyAction([Bind(Prefix = "foo")] string[] bar) { ... }
The the binder expects foo[0]
, foo[1]
, etc.
UpdateModel() and TryUpdateModel() take a parameter for prefix. Have you tried that?
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