ConstantLine.RuntimeMoving Property

Gets or sets a value that specifies whether a user can move the constant line.

Namespace: DevExpress.Xpf.Charts

Assembly: DevExpress.Xpf.Charts.v21.2.dll

NuGet Package: DevExpress.Wpf.Charts

Declaration

C#

public bool RuntimeMoving { get; set; }

VB.NET

Public Property RuntimeMoving As Boolean

Property Value

Type	Description
Boolean	true, if the constant line can be moved; otherwise, false.

Remarks

The following example shows how to add a constant line that a user can move at runtime. Once a user moves the constant line, the constant line’s title is updated to display the current constant line value.

XAML

<Window.Resources>
    <local:TitleConverter x:Key="titleConverter"/>
</Window.Resources>
<Grid>
    <dxc:ChartControl x:Name="chart" CrosshairEnabled="False">
        <dxc:XYDiagram2D>

            <dxc:XYDiagram2D.AxisY>
                <dxc:AxisY2D>
                    <dxc:AxisY2D.WholeRange>
                        <dxc:Range dxc:AxisY2D.AlwaysShowZeroLevel="False"/>
                    </dxc:AxisY2D.WholeRange>
                    <dxc:AxisY2D.ConstantLinesInFront>
                        <dxc:ConstantLine x:Name="cl" Value="25" RuntimeMoving="True">
                            <dxc:ConstantLine.Title>
                                <dxc:ConstantLineTitle Content="{Binding ElementName=cl, Path=Value, Converter={StaticResource titleConverter}}"/>
                            </dxc:ConstantLine.Title>
                        </dxc:ConstantLine>
                    </dxc:AxisY2D.ConstantLinesInFront>
                </dxc:AxisY2D>
            </dxc:XYDiagram2D.AxisY>
        </dxc:XYDiagram2D>
    </dxc:ChartControl>
</Grid>

C#

public class TitleConverter : IValueConverter {
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture) {
        double res;
        double.TryParse(value.ToString(), out res);
        return Math.Round(res, 3);
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) {
        return value;
    }
}

VB.NET

Public Class TitleConverter
    Inherits IValueConverter

    Public Function Convert(ByVal value As Object, ByVal targetType As Type, ByVal parameter As Object, ByVal culture As CultureInfo) As Object
        Dim res As Double
        Double.TryParse(value.ToString(), res)
        Return Math.Round(res, 3)
    End Function

    Public Function ConvertBack(ByVal value As Object, ByVal targetType As Type, ByVal parameter As Object, ByVal culture As CultureInfo) As Object
        Return value
    End Function
End Class