I am looking to create a simple table layout that will allow me to showcase data from an array of objects one by one. By clicking on a button or a similar element, the next object in the array should be displayed.
What makes this challenge interesting is that I want to avoid using the visible tag to hide the additional data.
One simple way is to specify a property that indicates the current element you want to display along with the index of that element within your observableArray. I have created a basic demo for you to check out.
<div id="persons"> <span data-bind="text: selectedPerson().name"></span>
<br/>
<button data-bind="click: showNext" id="btnShowNext">Show Next</button>
<br/>
</div>
//Below is the JavaScript code:
function ViewModel() {
people = ko.observableArray([{
name: "Bungle"
}, {
name: "George"
}, {
name: "Zippy"
}]);
showNext = function (person) {
selectedIndex(selectedIndex() + 1);
};
selectedIndex = ko.observable(0);
selectedPerson = ko.computed(function () {
return people()[selectedIndex()];
});
}
ko.applyBindings(new ViewModel());
Please take a look at this jsfiddle for reference.
One way to update the UI when clicking next is by creating an observable property for a single object. Then, simply set that property to another object and watch as the UI magically updates.
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