crazy proj : No 6 - data binding + event handing

1. data binding

mainly 2 methods: static, dynamic

(datacontext, datatable, bindinglist... I just mark them here as I ever saw them somewhere. )

the page can get the data via "get" method of the model you specified

    <Window.DataContext>
        <local:ViewModel/>
    </Window.DataContext>

ItemsSource="{Binding Path=Option_data}"

(here should build another view model to exhibit on the page)

(TODO: specify the data grid column name to substitute the name automatically generated from the data structure))

2. event handing

TODO......

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