SnapChart.Titles Property

Provides access to the collection of chart titles.

Namespace: DevExpress.Snap.Core.API

Assembly: DevExpress.Snap.v18.2.Core.dll

Declaration

C#

ChartTitleCollection Titles { get; }

VB.NET

ReadOnly Property Titles As ChartTitleCollection

Property Value

Type	Description
ChartTitleCollection	A ChartTitleCollection object that is a collection of chart titles.

Remarks

The Titles property provides access to a collection that stores chart titles (if any). Use the ChartTitleCollection object’s methods to manipulate (add or remove) titles on a chart. The ChartTitleCollection.Item property enables you to get an individual chart title (an object of the Title type) by its index in the collection.

For more information, see Chart Titles.

Example

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-create-a-chart-to-visualize-data-in-a-snap-report-t569171

Form1.cs

using System;
using System.Data;
using DevExpress.XtraCharts;
using DevExpress.Snap.Core.API;

namespace SnapChartAPI
{
    public partial class Form1 : DevExpress.XtraBars.Ribbon.RibbonForm
    {
        public Form1() {
            InitializeComponent();
            #region #CreateChart
            SnapDocument document = snapControl.Document;
            // Insert a chart into the document.
            SnapChart chart = document.CreateSnChart(document.Range.Start);
            chart.BeginUpdate();
            // Create a data table and bind the chart to it.
            chart.DataSource = CreateChartData();

            // Populate chart series with data.
            chart.SeriesDataMember = "Year";
            chart.SeriesTemplate.ArgumentDataMember = "Region";
            chart.SeriesTemplate.ValueDataMembers.AddRange(new string[] { "Sales" });

            // Specify the series view options.
            chart.SeriesTemplate.ChangeView(ViewType.Bar);
            chart.SeriesNameTemplate.BeginText = "Year: ";

            // Add the chart title.
            ChartTitle chartTitle = new ChartTitle();
            chartTitle.Text = "DevAV Sales by Regions";
            chartTitle.Alignment = System.Drawing.StringAlignment.Center;
            chartTitle.Dock = ChartTitleDockStyle.Top;
            chart.Titles.Add(chartTitle);

            // Add the value axis title.
            XYDiagram diagram = (XYDiagram)chart.Diagram;
            diagram.AxisY.Title.Visibility = DevExpress.Utils.DefaultBoolean.True;
            diagram.AxisY.Title.Alignment = System.Drawing.StringAlignment.Center;
            diagram.AxisY.Title.Text = "Millions of Dollars";

            // Set the chart size.
            chart.Size = new System.Drawing.Size(640, 425);
            chart.UseExplicitSize = true;

            // Change the chart palette.
            chart.PaletteName = "Slipstream";
            chart.EndUpdate();

            document.Fields.Update();
            #endregion #CreateChart
        }

        #region #CreateDataSource
        DataView CreateChartData() {
            int prevYear = DateTime.Now.Year - 1;

            // Create a data table.
            DataTable table = new DataTable("ChartData");

            // Add three columns to the table.
            table.Columns.Add("Year", typeof(int));
            table.Columns.Add("Region", typeof(string));
            table.Columns.Add("Sales", typeof(decimal));

            // Add data rows to the table.
            table.Rows.Add(prevYear - 2, "Asia", 4.2372D);
            table.Rows.Add(prevYear - 2, "Australia", 1.7871D);
            table.Rows.Add(prevYear - 2, "Europe", 3.0884D);
            table.Rows.Add(prevYear - 2, "North America", 3.4855D);
            table.Rows.Add(prevYear - 2, "South America", 1.6027D);

            table.Rows.Add(prevYear - 1, "Asia", 4.7685D);
            table.Rows.Add(prevYear - 1, "Australia", 1.9576D);
            table.Rows.Add(prevYear - 1, "Europe", 3.3579D);
            table.Rows.Add(prevYear - 1, "North America", 3.7477D);
            table.Rows.Add(prevYear - 1, "South America", 1.8237D);

            table.Rows.Add(prevYear, "Asia", 5.2890D);
            table.Rows.Add(prevYear, "Australia", 2.2727D);
            table.Rows.Add(prevYear, "Europe", 3.7257D);
            table.Rows.Add(prevYear, "North America", 4.1825D);
            table.Rows.Add(prevYear, "South America", 2.1172D);

            return new DataView(table);
        }
        #endregion #CreateDataSource
    }
}

Form1.vb

Imports System
Imports System.Data
Imports DevExpress.XtraCharts
Imports DevExpress.Snap.Core.API

Namespace SnapChartAPI
    Partial Public Class Form1
        Inherits DevExpress.XtraBars.Ribbon.RibbonForm

        Public Sub New()
            InitializeComponent()
'            #Region "#CreateChart"
            Dim document As SnapDocument = snapControl.Document
            ' Insert a chart into the document.
            Dim chart As SnapChart = document.CreateSnChart(document.Range.Start)
            chart.BeginUpdate()
            ' Create a data table and bind the chart to it.
            chart.DataSource = CreateChartData()

            ' Populate chart series with data.
            chart.SeriesDataMember = "Year"
            chart.SeriesTemplate.ArgumentDataMember = "Region"
            chart.SeriesTemplate.ValueDataMembers.AddRange(New String() { "Sales" })

            ' Specify the series view options.
            chart.SeriesTemplate.ChangeView(ViewType.Bar)
            chart.SeriesNameTemplate.BeginText = "Year: "

            ' Add the chart title.
            Dim chartTitle As New ChartTitle()
            chartTitle.Text = "DevAV Sales by Regions"
            chartTitle.Alignment = System.Drawing.StringAlignment.Center
            chartTitle.Dock = ChartTitleDockStyle.Top
            chart.Titles.Add(chartTitle)

            ' Add the value axis title.
            Dim diagram As XYDiagram = CType(chart.Diagram, XYDiagram)
            diagram.AxisY.Title.Visibility = DevExpress.Utils.DefaultBoolean.True
            diagram.AxisY.Title.Alignment = System.Drawing.StringAlignment.Center
            diagram.AxisY.Title.Text = "Millions of Dollars"

            ' Set the chart size.
            chart.Size = New System.Drawing.Size(640, 425)
            chart.UseExplicitSize = True

            ' Change the chart palette.
            chart.PaletteName = "Slipstream"
            chart.EndUpdate()

            document.Fields.Update()
'            #End Region ' #CreateChart
        End Sub

        #Region "#CreateDataSource"
        Private Function CreateChartData() As DataView
            Dim prevYear As Integer = Date.Now.Year - 1

            ' Create a data table.
            Dim table As New DataTable("ChartData")

            ' Add three columns to the table.
            table.Columns.Add("Year", GetType(Integer))
            table.Columns.Add("Region", GetType(String))
            table.Columns.Add("Sales", GetType(Decimal))

            ' Add data rows to the table.
            table.Rows.Add(prevYear - 2, "Asia", 4.2372R)
            table.Rows.Add(prevYear - 2, "Australia", 1.7871R)
            table.Rows.Add(prevYear - 2, "Europe", 3.0884R)
            table.Rows.Add(prevYear - 2, "North America", 3.4855R)
            table.Rows.Add(prevYear - 2, "South America", 1.6027R)

            table.Rows.Add(prevYear - 1, "Asia", 4.7685R)
            table.Rows.Add(prevYear - 1, "Australia", 1.9576R)
            table.Rows.Add(prevYear - 1, "Europe", 3.3579R)
            table.Rows.Add(prevYear - 1, "North America", 3.7477R)
            table.Rows.Add(prevYear - 1, "South America", 1.8237R)

            table.Rows.Add(prevYear, "Asia", 5.2890R)
            table.Rows.Add(prevYear, "Australia", 2.2727R)
            table.Rows.Add(prevYear, "Europe", 3.7257R)
            table.Rows.Add(prevYear, "North America", 4.1825R)
            table.Rows.Add(prevYear, "South America", 2.1172R)

            Return New DataView(table)
        End Function
        #End Region ' #CreateDataSource
    End Class
End Namespace