asp.net - MVC model binding to nested collection -

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i have class:

public class clientinformation{     public string username {get; set;}     public icollection<regiondistrictcity> regiondistrictcity     {         get;         set;     }    public class regiondistrictcity   {      public string region { get; set; }      public string district { get; set; }      public string city { get; set; }   } }

how should formated name attribute of input elements properties region, distirct, city in html in order make model binder populate collection "icollection regiondistrictcity"?

i tried have action method parameter of type "clientinformation" , html name attributes formated "[index].propertyname" in case property "username" binded.

i tried have action method parameter name "client" , have html names attributes formated "client[index].propertyname" doesn't work. (in tha case if there "list client" populated)

thanks.

in mvc4 should use for loop instead of foreach bind collection. model binder able populate model when submit data.

@for (int = 0; < model.regiondistrictcity.count; i++)         {             @html.editorfor(model => model.regiondistrictcity[i].region)         }

but work if not deleting or adding items collection dynamically. if want that, should use begincollectionitem helper created steve sanderson. http://blog.stevensanderson.com/2010/01/28/editing-a-variable-length-list-aspnet-mvc-2-style/


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