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Data Chart - Editing with KnockoutJS

Note: The Knockout extensions do not work with the ASP.NET MVC Helpers.
The sample demonstrates the igDataChart control reacting to changes in the data source by the Knockout View-Model. Note that the chart is updated without having to re-bind the control. By default, the sample shows the market revenue and expenses for the first 10 days of the month. You can add/remove days and move items along the chart and observe money flow on the market changing accordingly.
Select Day
Simulation options:
Add a new day
Delete the selected day
Move the selected day backwards
Move the selected day forward
Play continuous moving simulation
Pause the simulation
	Revenue per day (in thousands)
	Expenses per day (in thousands)
	Revenue per day (in thousands)
	Expenses per day (in thousands)
This sample is designed for a larger screen size.
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HTML
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Knockout JS</title>

    <!-- Ignite UI for jQuery Required Combined CSS Files -->
    <link href="http://cdn-na.infragistics.com/igniteui/2024.2/latest/css/themes/infragistics/infragistics.theme.css" rel="stylesheet" />
    <link href="http://cdn-na.infragistics.com/igniteui/2024.2/latest/css/structure/infragistics.css" rel="stylesheet" />
    
    <!--CSS file specific for chart styling -->
    <link href="http://cdn-na.infragistics.com/igniteui/2024.2/latest/css/structure/modules/infragistics.ui.chart.css" rel="stylesheet" />

    <script src="http://ajax.aspnetcdn.com/ajax/modernizr/modernizr-2.8.3.js"></script>
    <script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
    <script src="http://code.jquery.com/ui/1.11.1/jquery-ui.min.js"></script>

    <!-- Ignite UI for jQuery Required Combined JavaScript Files -->
    <script src="http://cdn-na.infragistics.com/igniteui/2024.2/latest/js/infragistics.core.js"></script>
    <script src="http://cdn-na.infragistics.com/igniteui/2024.2/latest/js/infragistics.lob.js"></script>
    <script src="http://cdn-na.infragistics.com/igniteui/2024.2/latest/js/infragistics.dv.js"></script>
</head>
<body>
    <style>
        .main-container { position: relative; width: 100% }
        .float { float: left; margin: 10px 10px 0 0; }
        .clear { clear: both; }
        .margin-b { margin-bottom: 20px; }
        .btn-container { margin-top: 30px; position: relative; width: 600px; height: 50px; }
        
                .btn-container .btn-pause:hover { background-position: -96px -50px; }
        #lineChart {
            margin-right: 20px;
            margin-top: 20px;
        }
        .combo-container { width: 210px; float: right; margin-right: 20px; }
        .sample-chart-container {
            margin-right: 240px;
        }
        .legend-container {  width: 300px; margin-top: 10px; }
            .legend-container .title { font-weight: bold; font-size: 14px; margin-bottom: 10px; }
            .legend-container .legend { float: left; width: 48px; height: 48px; margin: 2px 5px 5px 0; padding: 0;
                background-image: url(/images/samples/data-chart/music-controls-sprite.png); background-repeat: no-repeat; 
                border: 1px solid #535353; zoom: 50%; }
            .legend-container .add { background-position: -337px 0px; }
            .legend-container .delete { background-position: -384px 0px; }
            .legend-container .prev { background-position: -192px 0px; }
            .legend-container .next { background-position: -240px 0px; }
            .legend-container .play {  background-position: 0px 0px; }
            .legend-container .btn-add-start { background-position: -337px 0px; }
                .btn-container .btn-add-start:hover { background-position: -337px -50px; }
            .legend-container .btn-rmv-start { background-position: -384px 0px; }
                .btn-container .btn-rmv-start:hover { background-position: -384px -50px; }
            .legend-container .btn-add-curr { background-position: -337px 0px; }
                .btn-container .btn-add-curr:hover { background-position: -337px -50px; }
            .legend-container .btn-rmv-curr { background-position: -384px 0px; }
                .btn-container .btn-rmv-curr:hover { background-position: -384px -50px; }
            .legend-container .btn-prev { background-position: -192px 0px; }
                .btn-container .btn-prev:hover { background-position: -192px -50px; }  
            .legend-container .btn-play { background-position: 0px 0px;  }
                .btn-container .btn-play:hover { background-position: 0px -50px;  }
            .legend-container .btn-next { background-position: -240px 0px; }
                .btn-container .btn-next:hover { background-position: -240px -50px; }
            .legend-container .btn-rmv-end { background-position: -384px 0px; }
                .btn-container .btn-rmv-end:hover { background-position: -384px -50px; }
            .legend-container .btn-add-end { background-position: -336px 0px; }
                .btn-container .btn-add-end:hover { background-position: -336px -50px; }
            .legend-container .btn-pause { background-position: -96px 0px; opacity: 0.5 }
            .legend-container button { float: left; width: 48px; height: 48px; margin: 2px 5px 5px 0; padding: 0; border: none; cursor: pointer; padding: 0;
                background-image: url(/images/samples/data-chart/music-controls-sprite.png); background-repeat: no-repeat; 
                border: 1px solid #535353; zoom: 50% }
        .legend-container span { font-size: 12px; }
        #barColumnChart { margin-top: 20px; }
        #legendLineChart { border: none; background-color: transparent; font-weight: bold; }
        #legendBarColumnChart { border: none; background-color: transparent; font-weight: bold; }
        .sample-header {
            margin-top: 10px;
            height: 80px;
            line-height: 75px;
            text-align: center;
            width: 100%;
            background-color: #44acd6;
        }
        @media screen and (max-width: 600px) {
            /* Polar chart container and legend under 600px */
            .combo-container {
                width: 100%;
                float: none;
            }
            .sample-chart-container {
                margin-right: 0;
            }
        }
        @media screen and (max-width: 430px) {
            #sample > section > * {
                margin: 0;
            }
        }
    </style>

    <script src="/js/external/knockout-latest.js" type="text/javascript"></script>
    <script src="/js/external/knockout.mapping-latest.js" type="text/javascript"></script>
	<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2024.2/latest/js/extensions/infragistics.ui.datachart.knockout-extensions.js"></script>
	<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2024.2/latest/js/extensions/infragistics.ui.combo.knockout-extensions.js"></script>

    <script type="text/javascript">
        $(function () {
            var dynamicModel,
                data,
                interval,
                globalItem = 3,
                globalIndex = 3, // When item is deleted we need to record gloablly the index
                autoIncrement = 1;
            function generateData(count) {
                var num = count, data = [], curr = 10, revenue, expenses;
                for (var i = 0; i < num; i++) {
                    revenue = Math.random() * 90.0;
                    expenses = Math.random() * 70.0;
                    data[i] = {
                        label: (count === 1) ? autoIncrement.toString() : (i + 1).toString(),
                        index: (count === 1) ? autoIncrement : (i + 1),
                        revenue: revenue,
                        expenses: expenses
                    };
                    autoIncrement++;
                }
                if (count === 1) {
                    return data[0];
                } else {
                    return ko.observableArray(data);
                }
            }
            function ViewModel(data) {
                this.data = data;
                this.minChartValue = 0;
                this.maxChartValue = 100;
                this.chartWidth = "100%";
                this.chartHeight = 250;
                this.chartThickness = 2;
                this.transitionDuration = 1000;
            }
            data = generateData(10);
            dynamicModel = new ViewModel(data);
            ko.applyBindings(dynamicModel);

            $(".btn-prev").click(function () {
                try {
                    var index = $("#combo1").igCombo("value");
                    moveItem(-1, index);
                }

                catch (e) {
                    return;
                }
            });

            $(".btn-next").click(function () {
                try {
                    var index = $("#combo1").igCombo("value");
                    moveItem(1, index);
                }

                catch (e) {
                    return;
                }
            });
            $(".btn-play").click(function () {
                var index = $("#combo1").igCombo("value");
                moveItem(1, index);
                interval = setInterval(function () { moveItem(1, index) }, 1000);
                hideButtons();
            });
            $(".btn-pause").click(function () {
                clearInterval(interval);
                showButtons();
            });
            $(".btn-add-start").click(function () {
                data.unshift(generateData(1));
            });
            $(".btn-rmv-start").click(function () {
                globalIndex = 0;
                data.shift();
            });
            $(".btn-add-end").click(function () {
                data.push(generateData(1));
            });
            $(".btn-rmv-end").click(function () {
                globalIndex = data().length;
                data.pop();
            });
            $(".btn-add-curr").click(function () {
                var index = $("#combo1").igCombo("value");
                data.splice(getCurrentItemState(index).index, 0, generateData(1));
            });
            $(".btn-rmv-curr").click(function () {
                try {
                    var index = $("#combo1").igCombo("value");

                    if (index !== null) {
                        globalIndex = getCurrentItemState(index).index;
                        data.splice(globalIndex, 1);
                    }
                }

                catch (e) {
                    return;
                }
            });
            function moveItem(step, currentIndex) {
                var state = getCurrentItemState(currentIndex),
                    itemToMove = state.item,
                    index = state.index,
                    insertIndex;
                globalItem = currentIndex;
                globalIndex = index;
                data.splice(index, 1);
                if (step > 0) {
                    insertIndex = (index === data().length) ? 0 : index + step;
                } else {
                    insertIndex = (index === 0) ? data().length : index + step;
                }
                data.splice(insertIndex, 0, itemToMove);
            }
            function getCurrentItemState(currentIndex) {
                var i = 0;
                for (i; i < data().length; i++) {
                    if (data()[i].index === currentIndex) {
                        return {
                            item: data()[i],
                            index: i
                        }
                    }
                }
            }
            $(".combo-container").on("igcombotextchanged", "#combo1", function (event, ui) {
                globalItem = parseInt(ui.text, 10);
            }).on("igcomboitemsrendered", "#combo1", function (event, ui) {
            	if (ui.owner.selectedItems() === null || ui.owner.selectedItems().length === 0) {
            		ui.owner.index(globalIndex);
            		if (ui.owner.selectedItems() === null || ui.owner.selectedItems().length === 0) {
                        ui.owner.index(globalIndex - 1);
                    }
                }
            });

            function hideButtons() {
                $('.legend-container button:not(.btn-pause)').attr('disabled', 'disabled').animate({opacity: 0.5});
                $('.legend-container .btn-pause').removeAttr('disabled').animate({ opacity: 1 });
            }
            function showButtons() {
                $('.legend-container button:not(.btn-pause)').removeAttr('disabled').animate({ opacity: 1 });
                $('.legend-container .btn-pause').attr('disabled', 'disabled').animate({ opacity: 0.5 });
            }
        });
    </script>
   <!-- <div class="sample-header">
        <h1>Daily expense-revenue simulation</h1>
    </div>-->
    <div class="main-container">
        <div class="combo-container">
            <label for="combo1">Select Day</label>
            <div class="clear"></div>
            <div id="combo1" data-bind="igCombo: {
                dataSource: data,
                selectedItems: [{ index: 3 }],
                valueKey: 'index',
                textKey: 'label',
                width: '150',
                mode: 'dropdown',
                enableClearButton: false
            }"></div>
            <div class="legend-container">
                <div class="title">Simulation options:</div>
                <button class="btn-add-end" title="Add item at the end of the igDataChart"></button>
                <span>Add a new day</span><div class="clear"></div>
                <button class="btn-rmv-curr" title="Remove the last item from the igDataChart"></button>
                <span>Delete the selected day</span><div class="clear"></div>
                <button class="btn-prev" title="Move current item backward"></button>
                <span>Move the selected day backwards</span><div class="clear"></div>
                <button class="btn-next" title="Move current item forward"></button>
                <span>Move the selected day forward</span><div class="clear"></div>
                <button class="btn-play" title="Move current item with one step forward each second"></button>
                <span>Play continuous moving simulation</span><div class="clear"></div>
                <button class="btn-pause" title="Pause the simulation" disabled="disabled"></button>
                <span>Pause the simulation</span><div class="clear"></div>
            </div>
        </div>
        <div class="sample-chart-container">
            <div id="lineChart" data-bind='igDataChart: {
                dataSource: data,
                width: chartWidth,
                height: chartHeight,
                title: "Expense VS Revenue Per Day",
                legend: { element: "legendLineChart" },
                axes: [{
                    name: "xAxis",
                    type: "categoryX",
                    label: "label",
                    interval: 1,
                }, {
                    name: "yAxis",
                    type: "numericY",
                    minimumValue: minChartValue,
                    maximumValue: maxChartValue,

                }],
                series: [{
                    name: "line1",
                    type: "line",
                    isHighlightingEnabled: true,
                    isTransitionInEnabled: true,
                    title: "Revenue per day (in thousands)",
                    thickness: chartThickness,
                    markerType: "circle",
                    xAxis: "xAxis",
                    yAxis: "yAxis",
                    valueMemberPath: "revenue",
                    transitionDuration: transitionDuration
                },
                {
                    name: "line2",
                    type: "line",
                    isHighlightingEnabled: true,
                    isTransitionInEnabled: true,
                    title: "Expenses per day (in thousands)",
                    thickness: chartThickness,
                    markerType: "circle",
                    xAxis: "xAxis",
                    yAxis: "yAxis",
                    valueMemberPath: "expenses",
                    transitionDuration: transitionDuration,
                    brush: "#d3404b",
                    markerBrush: "#d3404b"
                }]
            }'></div>
            <div id="legendLineChart"></div>
            <div id="barColumnChart" data-bind='igDataChart: {
                dataSource: data,
                width: chartWidth,
                height: chartHeight,
                title: "Expense VS Revenue Per Day",
                legend: { element: "legendBarColumnChart" },
                axes: [{
                    name: "xAxis",
                    type: "categoryX",
                    label: "label",
                    interval: 1,
                }, {
                    name: "yAxis",
                    type: "numericY",
                    minimumValue: minChartValue,
                    maximumValue: maxChartValue
                }],
                series: [{
                    name: "column1",
                    type: "column",
                    isHighlightingEnabled: true,
                    isTransitionInEnabled: true,
                    title: "Revenue per day (in thousands)",
                    thickness: chartThickness,
                    xAxis: "xAxis",
                    yAxis: "yAxis",
                    valueMemberPath: "revenue",
                    transitionDuration: transitionDuration
                },
                {
                    name: "column2",
                    type: "column",
                    isHighlightingEnabled: true,
                    isTransitionInEnabled: true,
                    title: "Expenses per day (in thousands)",
                    thickness: chartThickness,
                    xAxis: "xAxis",
                    yAxis: "yAxis",
                    valueMemberPath: "expenses",
                    transitionDuration: transitionDuration,
                    brush: "#d3404b"
                }]
            }'></div>
            <div id="legendBarColumnChart"></div>
        </div>
    </div>     
</body>
</html>
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Data Chart - Editing with KnockoutJS

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