Scale.StartValue Property

Gets or sets the start value of the scale.

Namespace: DevExpress.UI.Xaml.Gauges

Assembly: DevExpress.UI.Xaml.Gauges.v21.2.dll

NuGet Package: DevExpress.Uwp.Controls

Declaration

C#

public double StartValue { get; set; }

VB.NET

Public Property StartValue As Double

Property Value

Type	Description
Double	A Double value which is the scale start.

Remarks

Use the StartValue and Scale.EndValue properties to specify the scale range.

Note that the StartValue can be either less than the EndValue or greater than the EndValue - both situations are correct.

Example

The following example demonstrates how to create a Circular Gauge with two needles, three ranges, one marker and one range bar.

XAML

<Page
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:CircularGaugeLesson"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:Gauges="using:DevExpress.UI.Xaml.Gauges"
    x:Class="CircularGaugeLesson.MainPage"
    mc:Ignorable="d">

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">

        <Gauges:CircularGauge>
            <Gauges:ArcScale StartValue="0" EndValue="12"
                             StartAngle="-90" EndAngle="270"
                             MajorIntervalCount="12" MinorIntervalCount="5">
                <Gauges:ArcScale.Ranges>
                    <Gauges:ArcScaleRange StartValue="0" EndValue="4"/>
                    <Gauges:ArcScaleRange EndValue="8" StartValue="4"/>
                    <Gauges:ArcScaleRange EndValue="12" StartValue="8"/>
                </Gauges:ArcScale.Ranges>
                <Gauges:ArcScale.RangeBars>
                    <Gauges:ArcScaleRangeBar AnchorValue="7" Value="3"/>
                </Gauges:ArcScale.RangeBars>
                <Gauges:ArcScale.Markers>
                    <Gauges:ArcScaleMarker Value="7"/>
                </Gauges:ArcScale.Markers>
                <Gauges:ArcScale.Needles>
                    <Gauges:ArcScaleNeedle Value="3"/>
                    <Gauges:ArcScaleNeedle Value="12"/>
                </Gauges:ArcScale.Needles>
                <Gauges:ArcScale.LabelOptions>
                    <Gauges:ArcScaleLabelOptions ShowFirst="False"/>
                </Gauges:ArcScale.LabelOptions>
            </Gauges:ArcScale>
        </Gauges:CircularGauge>

    </Grid>
</Page>