Chart will display details about the points through tooltip, when the mouse is moved over the point.
The tooltip is useful when you cannot display information by using the data labels due to space constraints.
You can enable tooltip by setting the enable property as true
in tooltip object.
@Html.EJS().Chart("container").Series(series =>
{
series.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Column).
Marker(ViewBag.Marker).
XName("x").
YName("yValue").
DataSource(ViewBag.dataSource).
Name("Gold").
Width(2).Add();
}).
PrimaryXAxis(px => px.Interval(1).ValueType(Syncfusion.EJ2.Charts.ValueType.Category)).
Title("Olympic Medal Counts - RIO").Tooltip(tt => tt.Enable(true)).Render()public IActionResult Index()
{
List<ColumnChartData> chartData = new List<ColumnChartData>
{
new ColumnChartData { x= "USA", yValue= 46 },
new ColumnChartData { x= "GBR", yValue= 27 },
new ColumnChartData { x= "CHN", yValue= 26 },
new ColumnChartData { x= "UK", yValue= 26 },
new ColumnChartData { x= "AUS", yValue= 26 },
new ColumnChartData { x= "IND", yValue= 26 },
new ColumnChartData { x= "DEN", yValue= 26 },
new ColumnChartData { x= "MEX", yValue= 26 },
};
ViewBag.dataSource = chartData;
return View();
}
public class ColumnChartData
{
public string x;
public double yValue;
}By default, tooltip shows information of x and y value in points. In addition to that, you can show more information in tooltip. For example the format ’${series.name} ${point.x}’ shows series name and point x value.
@Html.EJS().Chart("container").Series(series =>
{
series.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Column).
Marker(ViewBag.Marker).
XName("x").
YName("yValue").
DataSource(ViewBag.dataSource).
Name("Gold").
Width(2).Add();
}).
PrimaryXAxis(px => px.Interval(1).ValueType(Syncfusion.EJ2.Charts.ValueType.Category)).
Title("Olympic Medal Counts - RIO").
Tooltip(tt => tt.Enable(true).
Header("medal count").
Format("${series.name} ${point.x} : ${point.y}")).Render()public IActionResult Index()
{
List<ColumnChartData> chartData = new List<ColumnChartData>
{
new ColumnChartData { x= "USA", yValue= 46 },
new ColumnChartData { x= "GBR", yValue= 27 },
new ColumnChartData { x= "CHN", yValue= 26 },
new ColumnChartData { x= "UK", yValue= 26 },
new ColumnChartData { x= "AUS", yValue= 26 },
new ColumnChartData { x= "IND", yValue= 26 },
new ColumnChartData { x= "DEN", yValue= 26 },
new ColumnChartData { x= "MEX", yValue= 26 },
};
ViewBag.dataSource = chartData;
return View();
}
public class ColumnChartData
{
public string x;
public double yValue;
}Any HTML elements can be displayed in the tooltip by using the ‘template’ property of the tooltip. You can use the ${x} and ${y} as place holders in the HTML element to display the x and y values of the corresponding data point.
@Html.EJS().Chart("container").Series(series =>
{
series.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Column).
Marker(ViewBag.Marker).
XName("x").
YName("yValue").
DataSource(ViewBag.dataSource).
Name("Gold").
Width(2).Add();
}).
PrimaryXAxis(px => px.Interval(1).ValueType(Syncfusion.EJ2.Charts.ValueType.Category)).
Title("Olympic Medal Counts - RIO").
Tooltip(tt => tt.Enable(true).
header("medal count").
template=("#Medal")).Render()
<script id="Medal" type="text/x-template">
<div id='templateWrap'>
<table style="width:100%; border: 1px solid black;">
<tr><th colspan="2" bgcolor="#00FFFF">Medal</th></tr>
<tr><td bgcolor="#00FFFF">${x}:</td><td bgcolor="#00FFFF">${y}</td></tr>
</table>
</div>
</script>public IActionResult Index()
{
List<ColumnChartData> chartData = new List<ColumnChartData>
{
new ColumnChartData { x= "USA", yValue= 46 },
new ColumnChartData { x= "GBR", yValue= 27 },
new ColumnChartData { x= "CHN", yValue= 26 },
new ColumnChartData { x= "UK", yValue= 26 },
new ColumnChartData { x= "AUS", yValue= 26 },
new ColumnChartData { x= "IND", yValue= 26 },
new ColumnChartData { x= "DEN", yValue= 26 },
new ColumnChartData { x= "MEX", yValue= 26 },
};
ViewBag.dataSource = chartData;
return View();
}
public class ColumnChartData
{
public string x;
public double yValue;
}The fill
and border
properties are used to customize the background color and border of the tooltip respectively.
The textStyle
property in the tooltip is used to customize the font of the tooltip text.
@Html.EJS().Chart("container").Series(series =>
{
series.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Column).
Marker(ViewBag.Marker).
XName("x").
YName("yValue").
DataSource(ViewBag.dataSource).
Name("Gold").
Width(2).Add();
}).
PrimaryXAxis(px => px.Interval(1).ValueType(Syncfusion.EJ2.Charts.ValueType.Category)).
Title("Olympic Medal Counts - RIO").Tooltip(tt => tt.Enable(true).
Format("<b>${point.x} : ${point.y}</b>").
Fill('#7bb4eb').Render()
}public IActionResult Index()
{
List<ColumnChartData> chartData = new List<ColumnChartData>
{
new ColumnChartData { x= "USA", yValue= 46 },
new ColumnChartData { x= "GBR", yValue= 27 },
new ColumnChartData { x= "CHN", yValue= 26 },
new ColumnChartData { x= "UK", yValue= 26 },
new ColumnChartData { x= "AUS", yValue= 26 },
new ColumnChartData { x= "IND", yValue= 26 },
new ColumnChartData { x= "DEN", yValue= 26 },
new ColumnChartData { x= "MEX", yValue= 26 },
};
ViewBag.dataSource = chartData;
return View();
}
public class ColumnChartData
{
public string x;
public double yValue;
}By default, tooltip shows information of x and y value in points. You can show more information from data source in tooltip by using the tooltipMappingName property of the tooltip. You can use the ${point.tooltip} as place holders to display the specified tooltip content.