DateTimeScaleOptions.GridAlignment Property

Gets or sets the date-time 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 DateTimeGridAlignment GridAlignment { get; set; }

VB.NET

Public Property GridAlignment As DateTimeGridAlignment

Property Value

Type	Description
DateTimeGridAlignment	A DateTimeGridAlignment enumeration 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 a millisecond as the date-time unit to which axis gridlines should be aligned.
Second	Specifies a second as the date-time unit to which axis gridlines should be aligned.
Minute	Specifies a minute as the date-time unit to which axis gridlines should be aligned.
Hour	Specifies an hour as the date-time unit to which axis gridlines should be aligned.
Day	Specifies a day as the date-time unit to which axis gridlines should be aligned.
Week	Specifies a week as the date-time unit to which axis gridlines should be aligned.
Month	Specifies a month as the date-time unit to which axis gridlines should be aligned.
Quarter	Specifies a quarter of a year as the date-time unit to which axis gridlines should be aligned.
Year	Specifies a year as the date-time unit to which axis gridlines should be aligned.

Property Paths

You can access this nested property as listed below:

Object Type	Path to GridAlignment
AxisBase	.DateTimeScaleOptions .GridAlignment

Remarks

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

GridAlignment = Month, MeasureUnit=Month	GridAlignment = Quarter, MeasureUnit=Month

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

Example

This example demonstrates how an axis’ date-time and numeric options can be customized, depending on the ScaleType defined for a series’ arguments and values.

Form1.cs

using System;
using System.Windows.Forms;
using DevExpress.XtraCharts;
// ...

namespace FormatAxisLabels {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e) {
            // Create an empty chart.
            ChartControl chartControl1 = new ChartControl();

            // Create a bar series and add points to it.
            Series series1 = new Series("Series 1", ViewType.Bar);
            series1.Points.Add(new SeriesPoint(new DateTime(2009, 1, 1), new double[] { 26.25 }));
            series1.Points.Add(new SeriesPoint(new DateTime(2009, 2, 1), new double[] { 16.52 }));
            series1.Points.Add(new SeriesPoint(new DateTime(2009, 3, 1), new double[] { 22.21 }));
            series1.Points.Add(new SeriesPoint(new DateTime(2009, 4, 1), new double[] { 15.35 }));
            series1.Points.Add(new SeriesPoint(new DateTime(2009, 5, 1), new double[] { 24.15 }));

            // Add the series to the chart.
            chartControl1.Series.Add(series1);

            // Hide the legend (if necessary).
            chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False;

            // Set the scale type for the series' arguments and values.
            series1.ArgumentScaleType = ScaleType.DateTime;
            series1.ValueScaleType = ScaleType.Numerical;

            // Cast the chart's diagram to the XYDiagram type, to access its axes.
            XYDiagram diagram = chartControl1.Diagram as XYDiagram;

            // Define the date-time measurement unit, to which the beginning of 
            // a diagram's gridlines and labels should be aligned. 
            diagram.AxisX.DateTimeScaleOptions.GridAlignment = DateTimeGridAlignment.Day;

            // Define the detail level for date-time values.
            diagram.AxisX.DateTimeScaleOptions.MeasureUnit = DateTimeMeasureUnit.Month;

            // Define the custom date-time format (name of a month) for the axis labels.
            diagram.AxisX.Label.TextPattern = "{V:MMMM}";

            // Since the ValueScaleType of the chart's series is Numerical,
            // it is possible to customize the NumericOptions of Y-axis.
            diagram.AxisY.Label.TextPattern = "{V:C1}";

            // Add a title to the chart (if necessary).
            ChartTitle chartTitle1 = new ChartTitle();
            chartTitle1.Text = "Axis Scale Types";
            chartControl1.Titles.Add(chartTitle1);

            // Add the chart to the form.
            chartControl1.Dock = DockStyle.Fill;
            this.Controls.Add(chartControl1);
        }

    }
}

Form1.vb

Imports System
Imports System.Windows.Forms
Imports DevExpress.XtraCharts
' ...

Namespace FormatAxisLabels
    Partial Public Class Form1
        Inherits Form

        Public Sub New()
            InitializeComponent()
        End Sub

        Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load
            ' Create an empty chart.
            Dim chartControl1 As New ChartControl()

            ' Create a bar series and add points to it.
            Dim series1 As New Series("Series 1", ViewType.Bar)
            series1.Points.Add(New SeriesPoint(New Date(2009, 1, 1), New Double() { 26.25 }))
            series1.Points.Add(New SeriesPoint(New Date(2009, 2, 1), New Double() { 16.52 }))
            series1.Points.Add(New SeriesPoint(New Date(2009, 3, 1), New Double() { 22.21 }))
            series1.Points.Add(New SeriesPoint(New Date(2009, 4, 1), New Double() { 15.35 }))
            series1.Points.Add(New SeriesPoint(New Date(2009, 5, 1), New Double() { 24.15 }))

            ' Add the series to the chart.
            chartControl1.Series.Add(series1)

            ' Hide the legend (if necessary).
            chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False

            ' Set the scale type for the series' arguments and values.
            series1.ArgumentScaleType = ScaleType.DateTime
            series1.ValueScaleType = ScaleType.Numerical

            ' Cast the chart's diagram to the XYDiagram type, to access its axes.
            Dim diagram As XYDiagram = TryCast(chartControl1.Diagram, XYDiagram)

            ' Define the date-time measurement unit, to which the beginning of 
            ' a diagram's gridlines and labels should be aligned. 
            diagram.AxisX.DateTimeScaleOptions.GridAlignment = DateTimeGridAlignment.Day

            ' Define the detail level for date-time values.
            diagram.AxisX.DateTimeScaleOptions.MeasureUnit = DateTimeMeasureUnit.Month

            ' Define the custom date-time format (name of a month) for the axis labels.
            diagram.AxisX.Label.TextPattern = "{V:MMMM}"

            ' Since the ValueScaleType of the chart's series is Numerical,
            ' it is possible to customize the NumericOptions of Y-axis.
            diagram.AxisY.Label.TextPattern = "{V:C1}"

            ' Add a title to the chart (if necessary).
            Dim chartTitle1 As New ChartTitle()
            chartTitle1.Text = "Axis Scale Types"
            chartControl1.Titles.Add(chartTitle1)

            ' Add the chart to the form.
            chartControl1.Dock = DockStyle.Fill
            Me.Controls.Add(chartControl1)
        End Sub

    End Class
End Namespace