TimeSpanScaleOptions.GridAlignment Property

Gets or sets the time-span measure unit to which the beginning of an axis’ gridlines and labels should be aligned.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v25.1.dll

NuGet Package: DevExpress.Charts

Declaration

C#

public TimeSpanGridAlignment GridAlignment { get; set; }

VB.NET

Public Property GridAlignment As TimeSpanGridAlignment

Property Value

Type	Description
TimeSpanGridAlignment	A value that represents the measurement unit to which the beginning of an axis’s gridlines and labels should be aligned.

Available values:

Name	Description
Millisecond	Specifies millisecond as the time-span unit to which axis grid lines should be aligned.
Second	Specifies second as the time-span unit to which axis grid lines should be aligned.
Minute	Specifies minute as the time-span unit to which axis grid lines should be aligned.
Hour	Specifies hour as the time-span unit to which axis grid lines should be aligned.
Day	Specifies day as the time-span unit to which axis grid lines should be aligned.

Property Paths

You can access this nested property as listed below:

Object Type	Path to GridAlignment
AxisBase	.TimeSpanScaleOptions .GridAlignment

Remarks

This property is available when the SeriesBase.ArgumentScaleType or SeriesBase.ValueScaleType property is set to TimeSpan, and the ScaleOptionsBase.ScaleMode property is set to Manual.

GridAlignment=Hour , MeasureUnit=Hour	GridAlignment=Day , MeasureUnit=Hour

To maintain time-span values at different detail levels, use the DateTimeScaleOptions.MeasureUnit property.

To change the step interval for grid lines and axis labels, specify the ScaleGridOptionsBase.GridSpacing property.

Example

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

To do this, you can use the following code:

C#

private void Form1_Load(object sender, EventArgs e) {
    XYDiagram diagram = chartControl1.Diagram as XYDiagram;
    if (diagram != null) {
        diagram.AxisX.TimeSpanScaleOptions.ScaleMode = ScaleMode.Manual;
        diagram.AxisX.TimeSpanScaleOptions.MeasureUnit = TimeSpanMeasureUnit.Hour;
        diagram.AxisX.TimeSpanScaleOptions.AggregateFunction = AggregateFunction.Average;
        diagram.AxisX.TimeSpanScaleOptions.GridSpacing = 6;
        diagram.AxisX.TimeSpanScaleOptions.GridAlignment = TimeSpanGridAlignment.Hour;
    }             
}

VB.NET

Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
    Dim diagram As XYDiagram = TryCast(chartControl1.Diagram, XYDiagram)
    If diagram IsNot Nothing Then
        diagram.AxisX.TimeSpanScaleOptions.ScaleMode = ScaleMode.Manual
        diagram.AxisX.TimeSpanScaleOptions.MeasureUnit = TimeSpanMeasureUnit.Hour
        diagram.AxisX.TimeSpanScaleOptions.AggregateFunction = AggregateFunction.Average
        diagram.AxisX.TimeSpanScaleOptions.GridSpacing = 6
        diagram.AxisX.TimeSpanScaleOptions.GridAlignment = TimeSpanGridAlignment.Hour
    End If
End Sub

The example uses the following API members:

Member	Description
ScaleOptionsBase.ScaleMode	Gets or sets the scale mode for an axis.
TimeSpanScaleOptions.MeasureUnit	Gets or sets the detail level for time-span values.
ScaleGridOptionsBase.AggregateFunction	Gets or sets the value indicating the aggregate function that should be used to relieve data.
ScaleGridOptionsBase.GridSpacing	Gets or sets the interval between grid lines and major tickmarks.