IntervalTimeSpanScaleOptions.Pattern Property

Gets or sets a format string that configures text for the axis label and crosshair label.

Namespace: DevExpress.Xpf.Charts

Assembly: DevExpress.Xpf.Charts.v23.2.dll

NuGet Package: DevExpress.Wpf.Charts

Declaration

C#

public string Pattern { get; set; }

VB.NET

Public Property Pattern As String

Property Value

Type	Description
String	A format string.

Remarks

This pattern is applied when TimeSpanScaleOptionsBase.GridLayoutMode is set to GridAndLabelCentered or GridShiftedLabelCentered. Otherwise, use the AxisLabel.TextPattern property.

Patterns can contain regular text (displayed as is) and value placeholders in braces. You can apply Format Specifiers to placeholder values. Use a colon to separate a placeholder and its format specifier.

The following table contains the available placeholders:

Placeholder	Description
{OB}	Displays an opening bracket.
{CB}	Displays a closing bracket.
{OS}	Displays the greater than sign.
{US}	Displays the less than or less than or equal to sign.
{A1}	Displays the interval start value.
{A2}	Displays the interval end value.

Example

This example shows how to display intervals on the x-axis:

The example uses the following API members:

Member	Description
IntervalTimeSpanScaleOptions	Stores options for the time-span x-axis whose scale is divided into intervals.
ManualTimeSpanScaleOptions.AggregateFunction	Gets or sets the function that is used to aggregate time-span data associated with the axis.
OverflowValue	Gets or sets the overflow interval’s start value.
UnderflowValue	Gets or sets the underflow interval’s end value.
Pattern	Gets or sets a format string that configures text for the axis label and crosshair label.
OverflowValuePattern	Gets or sets a format string that configures text for the overflow interval axis label and crosshair label.
UnderflowValuePattern	Gets or sets a format string that configures text for the overflow interval axis label and crosshair label.

XAML

<dxc:XYDiagram2D.AxisX>
    <dxc:AxisX2D>
        <dxc:AxisX2D.TimeSpanScaleOptions>
            <dxc:IntervalTimeSpanScaleOptions AggregateFunction="Average" 
                                              Pattern="{}{A1:dd\.hh\:mm}-{A2:dd\.hh\:mm}" 
                                              UnderflowValue="0.06:00:00" 
                                              UnderflowValuePattern="{}{US}{A2:hh\:mm}"
                                              OverflowValue="1.12:00:00" 
                                              OverflowValuePattern="{}{OS}{A1:dd\.hh\:mm\:ss}"/>
        </dxc:AxisX2D.TimeSpanScaleOptions>                        
    </dxc:AxisX2D>
</dxc:XYDiagram2D.AxisX>