\Kendo\Dataviz\UI\Sparkline
A PHP wrapper for Kendo UI Sparkline.
Inherits from \Kendo\UI\Widget.
Usage
To use Sparkline in a PHP page instantiate a new instance, configure it via the available
configuration methods and output it by echo-ing the result of the render method.
Using Kendo Sparkline
<?php
// Create a new instance of Sparkline and specify its id
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
// Configure it
$sparkline->autoBind(true)
// Output it
echo $sparkline->render();
?>
Methods
autoBind
Indicates whether the chart will call read on the data source initially.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value boolean
Example
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->autoBind(true);
?>
axisDefaults
Default options for all chart axes.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value ``
axisLabelClick
Fires when an axis label is clicked. For additional information check the axisLabelClick event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->axisLabelClick('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onAxisLabelClick(e) {
// handle the axisLabelClick event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->axisLabelClick('onAxisLabelClick');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->axisLabelClick(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
addCategoryAxisItem
Adds one or more SparklineCategoryAxisItem to the Sparkline.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value[, $value2, ...] \Kendo\Dataviz\UI\SparklineCategoryAxisItem|array
Example - using \Kendo\Dataviz\UI\SparklineCategoryAxisItem
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$categoryAxisItem = new \Kendo\Dataviz\UI\SparklineCategoryAxisItem();
$baseUnit = 'value';
$categoryAxisItem->baseUnit($baseUnit);
$sparkline->addCategoryAxisItem($categoryAxisItem);
?>
Example - using array
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$baseUnit = 'value';
$sparkline->addCategoryAxisItem(array('baseUnit' => $baseUnit));
?>
Example - adding more than one SparklineCategoryAxisItem
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$first = new \Kendo\Dataviz\UI\SparklineCategoryAxisItem();
$second = new \Kendo\Dataviz\UI\SparklineCategoryAxisItem();
$sparkline->addCategoryAxisItem($first, $second);
?>
chartArea
The chart area configuration options. This is the entire visible area of the chart.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value \Kendo\Dataviz\UI\SparklineChartArea|array
Example - using \Kendo\Dataviz\UI\SparklineChartArea
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$chartArea = new \Kendo\Dataviz\UI\SparklineChartArea();
$background = 'value';
$chartArea->background($background);
$sparkline->chartArea($chartArea);
?>
Example - using array
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$background = 'value';
$sparkline->chartArea(array('background' => $background));
?>
data
The data for the default sparkline series.Will be discarded if series are supplied.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value array
Example
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->data(array());
?>
dataBound
Fires when the sparkline has received data from the data source and is about to render it. For additional information check the dataBound event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dataBound('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onDataBound(e) {
// handle the dataBound event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dataBound('onDataBound');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dataBound(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
dataSource
Sets the data source of the widget.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value \Kendo\Data\DataSource|array
Example - using \Kendo\Data\DataSource
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$dataSource = new \Kendo\Data\DataSource();
$sparkline->dataSource($dataSource);
?>
Example - using array
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$schema = new \Kendo\Data\DataSourceSchema();
$sparkline->dataSource(array('schema' => $schema));
?>
drag
Fires as long as the user is dragging the sparkline using the mouse or swipe gestures. For additional information check the drag event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->drag('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onDrag(e) {
// handle the drag event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->drag('onDrag');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->drag(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
dragEnd
Fires when the user stops dragging the sparkline. For additional information check the dragEnd event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dragEnd('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onDragEnd(e) {
// handle the dragEnd event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dragEnd('onDragEnd');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dragEnd(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
dragStart
Fires when the user has used the mouse or a swipe gesture to drag the sparkline.The drag operation can be aborted by calling e.preventDefault(). For additional information check the dragStart event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dragStart('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onDragStart(e) {
// handle the dragStart event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dragStart('onDragStart');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->dragStart(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
paneRender
Fires when a pane is rendered because the chart is rendered, or the chart performs panning or zooming, or because the chart is exported with different options. The event can be used to render custom visuals in the panes. For additional information check the paneRender event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->paneRender('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onPaneRender(e) {
// handle the paneRender event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->paneRender('onPaneRender');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->paneRender(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
plotArea
The plot area configuration options. This is the area containing the plotted series.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value \Kendo\Dataviz\UI\SparklinePlotArea|array
Example - using \Kendo\Dataviz\UI\SparklinePlotArea
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$plotArea = new \Kendo\Dataviz\UI\SparklinePlotArea();
$background = 'value';
$plotArea->background($background);
$sparkline->plotArea($plotArea);
?>
Example - using array
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$background = 'value';
$sparkline->plotArea(array('background' => $background));
?>
plotAreaClick
Fires when plot area is clicked. For additional information check the plotAreaClick event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaClick('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onPlotAreaClick(e) {
// handle the plotAreaClick event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaClick('onPlotAreaClick');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaClick(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
plotAreaHover
Fired when the user hovers the plot area. For additional information check the plotAreaHover event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaHover('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onPlotAreaHover(e) {
// handle the plotAreaHover event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaHover('onPlotAreaHover');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaHover(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
plotAreaLeave
Fired when the cursor leaves the plotArea. For additional information check the plotAreaLeave event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaLeave('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onPlotAreaLeave(e) {
// handle the plotAreaLeave event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaLeave('onPlotAreaLeave');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->plotAreaLeave(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
pointWidth
The width to allocate for each data point.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value float
Example
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->pointWidth(1);
?>
renderAs
Sets the preferred rendering engine. If it is not supported by the browser, the Sparkline will switch to the first available mode.The supported values are: "svg" - renders the widget as inline SVG document, if available or "canvas" - renders the widget as a Canvas element, if available..
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string
Example
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->renderAs('value');
?>
addSeriesItem
Adds one or more SparklineSeriesItem to the Sparkline.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value[, $value2, ...] \Kendo\Dataviz\UI\SparklineSeriesItem|array
Example - using \Kendo\Dataviz\UI\SparklineSeriesItem
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$seriesItem = new \Kendo\Dataviz\UI\SparklineSeriesItem();
$aggregate = 'value';
$seriesItem->aggregate($aggregate);
$sparkline->addSeriesItem($seriesItem);
?>
Example - using array
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$aggregate = 'value';
$sparkline->addSeriesItem(array('aggregate' => $aggregate));
?>
Example - adding more than one SparklineSeriesItem
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$first = new \Kendo\Dataviz\UI\SparklineSeriesItem();
$second = new \Kendo\Dataviz\UI\SparklineSeriesItem();
$sparkline->addSeriesItem($first, $second);
?>
seriesClick
Fires when chart series are clicked. For additional information check the seriesClick event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesClick('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onSeriesClick(e) {
// handle the seriesClick event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesClick('onSeriesClick');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesClick(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
seriesColors
The default colors for the chart's series. When all colors are used, new colors are pulled from the start again.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value array
Example
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesColors(array());
?>
seriesDefaults
Default values for each series.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value \Kendo\Dataviz\UI\SparklineSeriesDefaults|array
Example - using \Kendo\Dataviz\UI\SparklineSeriesDefaults
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$seriesDefaults = new \Kendo\Dataviz\UI\SparklineSeriesDefaults();
$gap = 1;
$seriesDefaults->gap($gap);
$sparkline->seriesDefaults($seriesDefaults);
?>
Example - using array
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$gap = 1;
$sparkline->seriesDefaults(array('gap' => $gap));
?>
seriesHover
Fires when chart series are hovered. The data that is available when the event is fired is listed below. For additional information check the seriesHover event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesHover('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onSeriesHover(e) {
// handle the seriesHover event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesHover('onSeriesHover');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesHover(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
seriesLeave
Fired when the cursor leaves a chart series. For additional information check the seriesLeave event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesLeave('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onSeriesLeave(e) {
// handle the seriesLeave event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesLeave('onSeriesLeave');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesLeave(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
seriesOver
Fired when the cursor is over the chart series. For additional information check the seriesOver event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesOver('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onSeriesOver(e) {
// handle the seriesOver event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesOver('onSeriesOver');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->seriesOver(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
theme
The sparkline theme. This can be either a built-in theme or "sass". When set to "sass" the sparkline will read the variables from the Sass-based themes.The supported values are: "sass" - special value, see notes; "black"; "blueopal"; "bootstrap"; "default"; "highcontrast"; "metro"; "metroblack"; "moonlight"; "silver" or "uniform".
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string
Example
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->theme('value');
?>
tooltip
The data point tooltip configuration options.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value \Kendo\Dataviz\UI\SparklineTooltip|array
Example - using \Kendo\Dataviz\UI\SparklineTooltip
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$tooltip = new \Kendo\Dataviz\UI\SparklineTooltip();
$background = 'value';
$tooltip->background($background);
$sparkline->tooltip($tooltip);
?>
Example - using array
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$background = 'value';
$sparkline->tooltip(array('background' => $background));
?>
transitions
A value indicating if transition animations should be played.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value boolean
Example
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->transitions(true);
?>
type
The default series type.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string
Example
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->type('value');
?>
addValueAxisItem
Adds one or more SparklineValueAxisItem to the Sparkline.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value[, $value2, ...] \Kendo\Dataviz\UI\SparklineValueAxisItem|array
Example - using \Kendo\Dataviz\UI\SparklineValueAxisItem
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$valueAxisItem = new \Kendo\Dataviz\UI\SparklineValueAxisItem();
$color = 'value';
$valueAxisItem->color($color);
$sparkline->addValueAxisItem($valueAxisItem);
?>
Example - using array
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$color = 'value';
$sparkline->addValueAxisItem(array('color' => $color));
?>
Example - adding more than one SparklineValueAxisItem
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$first = new \Kendo\Dataviz\UI\SparklineValueAxisItem();
$second = new \Kendo\Dataviz\UI\SparklineValueAxisItem();
$sparkline->addValueAxisItem($first, $second);
?>
zoom
Fires as long as the user is zooming the chart using the mousewheel. For additional information check the zoom event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoom('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onZoom(e) {
// handle the zoom event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoom('onZoom');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoom(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
zoomEnd
Fires when the user stops zooming the chart. For additional information check the zoomEnd event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoomEnd('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onZoomEnd(e) {
// handle the zoomEnd event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoomEnd('onZoomEnd');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoomEnd(new \Kendo\JavaScriptFunction('function(e) { }'));
?>
zoomStart
Fires when the user has used the mousewheel to zoom the chart.The zoom operation can be aborted by calling e.preventDefault(). For additional information check the zoomStart event documentation.
Returns
\Kendo\Dataviz\UI\Sparkline
Parameters
$value string|\Kendo\JavaScriptFunction
Example - using string which defines a JavaScript function
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoomStart('function(e) { }');
?>
Example - using string which defines a JavaScript name
<script>
function onZoomStart(e) {
// handle the zoomStart event.
}
</script>
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoomStart('onZoomStart');
?>
Example - using \Kendo\JavaScriptFunction
<?php
$sparkline = new \Kendo\Dataviz\UI\Sparkline('Sparkline');
$sparkline->zoomStart(new \Kendo\JavaScriptFunction('function(e) { }'));
?>