Now, there may be ample reason to want to do this -> what I'm enacting upon in the client may require a subset (possibly?) but I would contend that it should probably be a different service call. Don't transfer bytes that you don't need! So I created a static class helper to be used within a Razor template - and proceeded to forgot all about it.
A colleague from another department heard about/asked me about it and I rediscovered it. Enjoy. As always YMMV. If you improve on it - share it. I'll laud you copiously.
The helper:
public static class HtmlHelper
{
private static string JavaScriptify(string s)
{
return string.Join(".", s.Split('.').Select(x => x[0].ToString().ToLower() + x.Substring(1, x.Length - 1)));
}
public static IHtmlString KnockoutFrom<T>(this HtmlHelper<T> html, T obj)
{
var serializer = new JsonSerializer
{
ContractResolver = new CamelCasePropertyNamesContractResolver()
};
var sb = new StringBuilder();
sb.Append("(function() {");
var json = JObject.FromObject(obj, serializer);
sb.Append("var vm = ko.mapping.fromJS(" + json + ");");
var type = obj.GetType();
var ns = JavaScriptify(type.Namespace);
sb.Append("namespace('" + ns + "');");
sb.Append(ns + "." + JavaScriptify(type.Name) + " = vm;");
sb.Append("})();");
return new HtmlString(sb.ToString());
}
}
The template:
@Html.KnockoutFrom(Model)
