ObservableDictionary - use and show

• How to use ObservableDictionary.

When tried to insert key:value pairs to dict, there is only one key and one value in dict.

this.myData(new nx.data.ObservableDictionary());

this.myData().setItem({id: 1, value:'key_1'}, {id: 10, value: 'value_1'});

this.myData().setItem({id: 2, value:'key_2'}, {id: 10, value: 'value_2'});

this.myData().setItem({id: 3, value:'key_3'}, {id: 10, value: 'value_3'});

this.myData().setItem({id: 4, value:'key_4'}, {id: 10, value: 'value_4'});

and output:

this.myData().keys().toArray()

[Object

     id: 1

     value: "key_1"

     __proto__: Object]

this.myData().values().toArray()

[Object

     id: 10

     value: "value_4"

     __proto__: Object] 

only string or number keys works  

Second:

How to generate view from dictionary data. Got the data model in following format:

key: {id, name}, value: [ {id, mode, ...}, {id, mode, ...}, ...]

I need to show this data in following format

- key1

     - id, mode, ...

     - id, mode, ...

     - ...

- key2

     - id, mode, ...

     - id, mode, ...

     - ...

- ...