ManualTimeSpanScaleOptions.GridAlignment Property

Gets or sets the time-span measurement unit that defines the alignment of grid lines and axis labels.

Namespace: DevExpress.Xpf.Charts

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

NuGet Package: DevExpress.Wpf.Charts

Declaration

C#

public TimeSpanGridAlignment GridAlignment { get; set; }

VB.NET

Public Property GridAlignment As TimeSpanGridAlignment

Property Value

Type	Description
TimeSpanGridAlignment	A measurement unit that defines how to align the axis major grid lines and labels.

Available values:

Name	Description
Millisecond	Specifies the millisecond measurement unit.
Second	Specifies the second measurement unit.
Minute	Specifies the minute measurement unit.
Hour	Specifies the hour measurement unit.
Day	Specifies the day measurement unit.

Remarks

The following images show charts with different grid alignments (GridSpacing is set to 1).

Value	Image
GridAlignment = “Hour”
GridAlignment = “Day”

Disable the AutoGrid property before you specify GridAlignment.

Example

The following example shows how to group minute-by-minute data into data points with a greater measurement unit (“Hour”).

• Use the ManualTimeSpanScaleOptions.MeasureUnit property to specify the measurement unit that should be greater than the initial data measurement unit.

• To change an arithmetic function used for computing point aggregates, use ManualTimeSpanScaleOptions.AggregateFunction.

• Optionally, you can specify the ManualTimeSpanScaleOptions.GridAlignment, ManualTimeSpanScaleOptions.GridSpacing, and ManualTimeSpanScaleOptions.GridOffset properties.

XAML

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:TimeSpanExample"
        xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/charts" 
        x:Class="TimeSpanExample.MainWindow"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.DataContext>
        <local:ChartViewModel/>
    </Window.DataContext>
    <Grid>
        <dxc:ChartControl>
            <dxc:XYDiagram2D>
                <dxc:XYDiagram2D.AxisX>
                    <dxc:AxisX2D>
                        <dxc:AxisX2D.TimeSpanScaleOptions>
                            <dxc:ManualTimeSpanScaleOptions GridAlignment="Hour" 
                                                            GridSpacing="4"
                                                            MeasureUnit="Hour"
                                                            AggregateFunction="Average"
                                                            GridOffset="2"
                                                            AutoGrid="False"/>
                        </dxc:AxisX2D.TimeSpanScaleOptions>                           
                    </dxc:AxisX2D>
                </dxc:XYDiagram2D.AxisX>
                <!-- Other diagram settings. -->
            </dxc:XYDiagram2D>
        </dxc:ChartControl>
    </Grid>
</Window>