Knockout 2.0

Knockout 2 does not work with Photoshop CS or CS2. Before purchasing, I called Corel and was assured by pre-sales staff that it would work. When I called tech support after trying to use Knockout on my computer, I was told that they do not even have a current version of Photoshop to test with.

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Olimp Knockout 2.0

Let's start with a thanks in advance :)

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OK, So I'm trying to load/map hierarchical TypeScript/KnockoutJS typed classes from matching JSON data using the knockout.mapping plugin, the hierarchy can be to the Nth degree.

I know I can do the following to map/load the top level class from the JSON data.

However I can't figure out is how to map/load complex, Nth degree, hierarchical JSON data to a set of TypeScript/KnockoutJS classes and build the parent/child relationship.

I've read countless articals, but they all fall short when it comes to hierarchical relationships beyond simple parent/child examples, and I can find none using the knockout.mapping plugin.

Here are my cut down definitions of TypeScript classes I wish to map/load. I'm a c++/c# developer, so JavaScript of this nature is very new to me.

TypeScript Objects

The JSON would look something like this:

2 Answers

OK, so I'm a little further down the line now, after lots of hair pulling and numerious tests.

Below is a almost working example of what I'm trying to achive, the only problem with this is it doesn't seem to map correctly, even though stepping through the code seems to suggest it is loading correctly. Only when I use it with my bindings it throws a null unreferenced binding on RootTaget.Filter.Type, which should have be populated with a value.

I'm still trying to figure out why, but I will welcome suggestions as to what possible wrong. :)

NOW FIXED AND WORKING

semi-working typescript

html binding test

Another approach is to create a .d.ts file that defines TypeScript interfaces that describe the nested collections of observable types that are generated by the knockout mapping plugin given your C# classes.

Then you get the type-checking you desire using the .d.ts file (the same way you would use a .d.ts file from the definitely typed github project to get type checking for existing javaScript libraries).

I created a console app to examine my c# dll using reflection. I used a custom attribute to mark the types for which TypeScript interfaces were to be created. (I had to also create a custom attribute to mark which properties were NOT to be created as observable, since the mapping plugin only makes the leaf nodes of your nested collections as observables).

This worked well for me as I was able to regenerate the .d.ts file quickly when my C# model changed. And I was able to have type-checking for all parts of my knockout ViewModel.

Not the answer you're looking for? Browse other questions tagged typescriptknockout-2.0knockout-mapping-pluginknockout-mvc or ask your own question.

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