- Error Bar
- Customizing error bar
- Error bar mode
- Error bar direction
- Customizing error bar cap
- Customizing error bar color
- Events
- See Also
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Error Bar in ASP.NET MVC Charts Component
8 Oct 202424 minutes to read
Error Bar
Error bars are graphical representations of the variability of data and are used on graphs to indicate the error or uncertainty in a reported measurement.
To render error bars for the series in your chart, you need to follow a few steps to configure it correctly. Here’s a concise guide on how to do this:
Set visibility: Set the visible property to true for the error bars to be displayed.
@Html.EJS().Chart("container").Series(sr =>
{
sr.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Line)
.Name("Sales")
.XName("x")
.ErrorBar(error => error.Visible(true))
.Marker(marker => marker.Visible(true))
.YName("y")
.DataSource(ViewBag.dataSource).Add();
}).PrimaryXAxis(xaxis =>
xaxis.Interval(1)
.ValueType(Syncfusion.EJ2.Charts.ValueType.Category)
).PrimaryYAxis(yaxis =>
yaxis.LabelFormat("{value}%")
.Minimum(15)
.Maximum(45)
).Title("Sales Distribution of Car by Region").Render()
public ActionResult Index()
{
List<ErrorBarData> chartData = new List<ErrorBarData>
{
new ErrorBarData{ x= 2005, y= 28 },
new ErrorBarData{ x= 2006, y= 25 },
new ErrorBarData{ x= 2007, y= 26 },
new ErrorBarData{ x= 2008, y= 27 },
new ErrorBarData{ x= 2009, y= 32 },
new ErrorBarData{ x= 2010, y= 35 },
new ErrorBarData{ x= 2011, y= 30 }
};
ViewBag.dataSource = chartData;
return View();
}
public class ErrorBarData
{
public double x;
public double y;
}
Customizing error bar
To customize the error bar type, set the error bar Type
to Custom, and then change the horizontal or vertical positive and negative error values for the error bar.
@Html.EJS().Chart("container").Series(sr =>
{
sr.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Line)
.Name("Sales")
.XName("x")
.ErrorBar(error => error.Visible(true).
Type(Syncfusion.EJ2.Charts.ErrorBarType.Custom)
.Mode(Syncfusion.EJ2.Charts.ErrorBarMode.Both)
.VerticalPositiveError(2)
.HorizontalPositiveError(1)
.VerticalNegativeError(2)
.VerticalNegativeError(1)
)
.Marker(marker => marker.Visible(true))
.YName("y")
.DataSource(ViewBag.dataSource).Add();
}).PrimaryXAxis(xaxis =>
xaxis.Interval(1)
.ValueType(Syncfusion.EJ2.Charts.ValueType.Category)
).PrimaryYAxis(yaxis =>
yaxis.LabelFormat("{value}%")
.Minimum(15)
.Maximum(45)
).Title("Sales Distribution of Car by Region").Render()
public ActionResult Index()
{
List<ErrorBarData> chartData = new List<ErrorBarData>
{
new ErrorBarData{ x= 2005, y= 28 },
new ErrorBarData{ x= 2006, y= 25 },
new ErrorBarData{ x= 2007, y= 26 },
new ErrorBarData{ x= 2008, y= 27 },
new ErrorBarData{ x= 2009, y= 32 },
new ErrorBarData{ x= 2010, y= 35 },
new ErrorBarData{ x= 2011, y= 30 }
};
ViewBag.dataSource = chartData;
return View();
}
public class ErrorBarData
{
public double x;
public double y;
}
Error bar mode
The error bar mode is used to define whether the error bar line is drawn horizontally, vertically or on both sides. To change the error bar mode, use the Mode
option.
@Html.EJS().Chart("container").Series(sr =>
{
sr.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Line)
.Name("Sales")
.XName("x")
.ErrorBar(error => error.Visible(true).Mode(Syncfusion.EJ2.Charts.ErrorBarMode.Horizontal))
.Marker(marker => marker.Visible(true))
.YName("y")
.DataSource(ViewBag.dataSource).Add();
}).PrimaryXAxis(xaxis =>
xaxis.Interval(1)
.ValueType(Syncfusion.EJ2.Charts.ValueType.Category)
).PrimaryYAxis(yaxis =>
yaxis.LabelFormat("{value}%")
.Minimum(15)
.Maximum(45)
).Title("Sales Distribution of Car by Region").Render()
public ActionResult Index()
{
List<ErrorBarData> chartData = new List<ErrorBarData>
{
new ErrorBarData{ x= 2005, y= 28 },
new ErrorBarData{ x= 2006, y= 25 },
new ErrorBarData{ x= 2007, y= 26 },
new ErrorBarData{ x= 2008, y= 27 },
new ErrorBarData{ x= 2009, y= 32 },
new ErrorBarData{ x= 2010, y= 35 },
new ErrorBarData{ x= 2011, y= 30 }
};
ViewBag.dataSource = chartData;
return View();
}
public class ErrorBarData
{
public double x;
public double y;
}
Error bar direction
To change the direction of the error bars to plus, minus, or both sides, use the Direction
property.
@Html.EJS().Chart("container").Series(sr =>
{
sr.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Line)
.Name("Sales")
.XName("x")
.ErrorBar(error => error.Visible(true)
.Mode(Syncfusion.EJ2.Charts.ErrorBarMode.Vertical)
.Direction(Syncfusion.EJ2.Charts.ErrorBarDirection.Minus)
)
.Marker(marker => marker.Visible(true))
.YName("y")
.DataSource(ViewBag.dataSource).Add();
}).PrimaryXAxis(xaxis =>
xaxis.Interval(1)
.ValueType(Syncfusion.EJ2.Charts.ValueType.Category)
).PrimaryYAxis(yaxis =>
yaxis.LabelFormat("{value}%")
.Minimum(15)
.Maximum(45)
).Title("Sales Distribution of Car by Region").Render()
public ActionResult Index()
{
List<ErrorBarData> chartData = new List<ErrorBarData>
{
new ErrorBarData{ x= 2005, y= 28 },
new ErrorBarData{ x= 2006, y= 25 },
new ErrorBarData{ x= 2007, y= 26 },
new ErrorBarData{ x= 2008, y= 27 },
new ErrorBarData{ x= 2009, y= 32 },
new ErrorBarData{ x= 2010, y= 35 },
new ErrorBarData{ x= 2011, y= 30 }
};
ViewBag.dataSource = chartData;
return View();
}
public class ErrorBarData
{
public double x;
public double y;
}
Customizing error bar cap
To customize the length, width, opacity, and fill color of the error bar caps, you can use the ErrorBarCap
property.
@Html.EJS().Chart("container").Series(sr =>
{
sr.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Line)
.Name("Sales")
.XName("x")
.ErrorBar(error => error.Visible(true)
.ErrorBarCap(cap => cap.Length(10).Width(10).Color("#0000ff"))
)
.Marker(marker => marker.Visible(true))
.YName("y")
.DataSource(ViewBag.dataSource).Add();
}).PrimaryXAxis(xaxis =>
xaxis.Interval(1)
.ValueType(Syncfusion.EJ2.Charts.ValueType.Category)
).PrimaryYAxis(yaxis =>
yaxis.LabelFormat("{value}%")
.Minimum(15)
.Maximum(45)
).Title("Sales Distribution of Car by Region").Render()
public ActionResult Index()
{
List<ErrorBarData> chartData = new List<ErrorBarData>
{
new ErrorBarData{ x= 2005, y= 28 },
new ErrorBarData{ x= 2006, y= 25 },
new ErrorBarData{ x= 2007, y= 26 },
new ErrorBarData{ x= 2008, y= 27 },
new ErrorBarData{ x= 2009, y= 32 },
new ErrorBarData{ x= 2010, y= 35 },
new ErrorBarData{ x= 2011, y= 30 }
};
ViewBag.dataSource = chartData;
return View();
}
public class ErrorBarData
{
public double x;
public double y;
}
Customizing error bar color
To customize the error bar color for individual errors, use the ErrorBarColorMapping
property. You can also customize the vertical error, horizontal error, horizontal negative and positive error, and vertical negative and positive error for an individual point using the VerticalError
, HorizontalError
, HorizontalNegativeError
, HorizontalPositiveError
, VerticalNegativeError
, and VerticalPositiveError
properties.
@Html.EJS().Chart("container").Series(sr =>
{
sr.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Line)
.Name("Sales")
.XName("x")
.ErrorBar(error => error.Visible(true)
.ErrorBarColorMapping("color")
.VerticalError("error")
)
.Marker(marker => marker.Visible(true))
.YName("y")
.DataSource(ViewBag.dataSource).Add();
}).PrimaryXAxis(xaxis =>
xaxis.Interval(1)
.ValueType(Syncfusion.EJ2.Charts.ValueType.Category)
).PrimaryYAxis(yaxis =>
yaxis.LabelFormat("{value}%")
.Minimum(15)
.Maximum(45)
).Title("Sales Distribution of Car by Region").Render()
public ActionResult Index()
{
List<ErrorBarData> chartData = new List<ErrorBarData>
{
new ErrorBarData{ x= 2005, y= 28, color = "red", error = 4 },
new ErrorBarData{ x= 2006, y= 25, color = "blue", error = 3 },
new ErrorBarData{ x= 2007, y= 26, color = "green", error = 2 },
new ErrorBarData{ x= 2008, y= 27, color = "orange", error = 1 },
new ErrorBarData{ x= 2009, y= 32, color = "yellow", error = 3 },
new ErrorBarData{ x= 2010, y= 35, color = "grey", error = 2 },
new ErrorBarData{ x= 2011, y= 30, color = "aqua", error = 1 }
};
ViewBag.dataSource = chartData;
return View();
}
public class ErrorBarData
{
public double x;
public double y;
public string color;
public double error;
}
Events
Series render
The SeriesRender
event allows you to customize series properties, such as data, fill, and name, before they are rendered on the chart.
@Html.EJS().Chart("container").SeriesRender("changeColor").Series(sr =>
{
sr.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Line)
.Name("Sales")
.XName("x")
.ErrorBar(error => error.Visible(true))
.Marker(marker => marker.Visible(true))
.YName("y")
.DataSource(ViewBag.dataSource).Add();
}).PrimaryXAxis(xaxis =>
xaxis.Interval(1)
.ValueType(Syncfusion.EJ2.Charts.ValueType.Category)
).PrimaryYAxis(yaxis =>
yaxis.LabelFormat("{value}%")
.Minimum(15)
.Maximum(45)
).Title("Sales Distribution of Car by Region").Render()
<script>
function changeColor(args) {
args.fill = "#ff6347";
}
</script>
public ActionResult Index()
{
List<ErrorBarData> chartData = new List<ErrorBarData>
{
new ErrorBarData{ x= 2005, y= 28 },
new ErrorBarData{ x= 2006, y= 25 },
new ErrorBarData{ x= 2007, y= 26 },
new ErrorBarData{ x= 2008, y= 27 },
new ErrorBarData{ x= 2009, y= 32 },
new ErrorBarData{ x= 2010, y= 35 },
new ErrorBarData{ x= 2011, y= 30 }
};
ViewBag.dataSource = chartData;
return View();
}
public class ErrorBarData
{
public double x;
public double y;
}
Point render
The PointRender
event allows you to customize each data point before it is rendered on the chart.
@Html.EJS().Chart("container").PointRender("changeColor").Series(sr =>
{
sr.Type(Syncfusion.EJ2.Charts.ChartSeriesType.Line)
.Name("Sales")
.XName("x")
.ErrorBar(error => error.Visible(true))
.Marker(marker => marker.Visible(true))
.YName("y")
.DataSource(ViewBag.dataSource).Add();
}).PrimaryXAxis(xaxis =>
xaxis.Interval(1)
.ValueType(Syncfusion.EJ2.Charts.ValueType.Category)
).PrimaryYAxis(yaxis =>
yaxis.LabelFormat("{value}%")
.Minimum(15)
.Maximum(45)
).Title("Sales Distribution of Car by Region").Render()
<script>
function changeColor(args) {
if (args.point.index % 2 !== 0) {
args.fill = '#ff6347';
}
else {
args.fill = '#009cb8';
}
}
</script>
public ActionResult Index()
{
List<ErrorBarData> chartData = new List<ErrorBarData>
{
new ErrorBarData{ x= 2005, y= 28 },
new ErrorBarData{ x= 2006, y= 25 },
new ErrorBarData{ x= 2007, y= 26 },
new ErrorBarData{ x= 2008, y= 27 },
new ErrorBarData{ x= 2009, y= 32 },
new ErrorBarData{ x= 2010, y= 35 },
new ErrorBarData{ x= 2011, y= 30 }
};
ViewBag.dataSource = chartData;
return View();
}
public class ErrorBarData
{
public double x;
public double y;
}