Knockout <select> dropdown list using knockout visibility for option items?

[winsor...@gmail.com]

I am using Knockout in a MVVM single page app environment and am trying to create a dropdown list using a knockout select.  I'd like to be able to BOTH:

1) individually make items in the options list visible which I have accomplished using a <select> and then a knockout containerless ko: foreach around my <options> element like this:

<select class="selectpicker" show-tick data-bind="attr:{name: categoryTypeName, id: categoryTypeName, title: categoryTypeName, dataIndex:$index}, event:{change:onChange}">
    <!--ko foreach: categories -->                                           
        <option data-bind="value: categoryID, text: name, visible:IsVisible"></option>
    <!--/ko-->
 </select>

AND

2) have a selected value from an arbitrary JavaScript object which I have accomplished using options, optionsText, optionsValue and value defined  in my select element like this:

<select id="inputCategory" data-bind="attr: {name: categoryTypeName, id: categoryTypeName, title: categoryTypeName,         dataIndex:$index}, options: $root.visibleCategories(), optionsText: 'name',  optionsValue:'categoryID', value: $root.selectedCategoryId()[$index()], event: {change: $root.onCategoryChange } " >
</select>

Both of these work on their own , but they use different select element structure.  I'd like to do both but can't figure out how to both individually apply visibility to items in my options list AND have the select format that enables me to define a selected value.

Is there a way to do both of these together?

[Gunnar Liljas]

Maybe this approach...

http://stackoverflow.com/a/11190148/98544

2013/9/30 <winsor...@gmail.com>

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[winsor...@gmail.com]

Thank you for the pointer - I will review.  For now I just changed my approach and created a modified array with the correct items for "options" rather than try to make some items visible and some not visible in the original "options" array.