ChartRangeControlClientDataProvider Class

The class that is used to provide data to a chart range control client.

Namespace: DevExpress.XtraEditors

Assembly: DevExpress.XtraEditors.v19.1.dll

Declaration

C#

public class ChartRangeControlClientDataProvider :
    IDisposable

VB.NET

Public Class ChartRangeControlClientDataProvider
    Implements IDisposable

Related API Members

The following members return ChartRangeControlClientDataProvider objects:

• ChartRangeControlClientBase.DataProvider

Remarks

The data provider of the chart range control client is represented by the ChartRangeControlClientDataProvider object that can be accessed via the ChartRangeControlClientBase.DataProvider property.

When you access the data provider, specify a data source for the chart client using the ChartRangeControlClientDataProvider.DataSource property and define the name of a data column upon which new series will be created (and named) via the ChartRangeControlClientDataProvider.SeriesDataMember property. Then, assign the required data fields to the ChartRangeControlClientDataProvider.ArgumentDataMember and ChartRangeControlClientDataProvider.ValueDataMember properties.

Example

This example demonstrates how to set up a range control with the date-time chart client to display a chart with date-time data in the range control’s background.

In order to provide data to a chart date-time range control client, you need to access the ChartRangeControlClientDataProvider object using the ChartRangeControlClientBase.DataProvider property and assign a data source to the ChartRangeControlClientDataProvider.DataSource property. Then specify the required data fields via the ChartRangeControlClientDataProvider.ArgumentDataMember, ChartRangeControlClientDataProvider.ValueDataMember, and ChartRangeControlClientDataProvider.SeriesDataMember (optional) properties.

In the current example, a date-time chart client is bound to a simple data table containing three columns (“Argument”, “Value”, and “Series”).

In addition, this example shows how to customize chart client common settings (e.g., change the date-time range, customize template view and grid options).

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-bind-a-date-time-chart-range-control-client-to-a-datasource-and-customize-its-commo-t125884

Form1.cs

using System;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
using DevExpress.XtraEditors;

namespace DateTimeChartRangeClient {

    public partial class Form1 : Form {

        public Form1() {
            InitializeComponent();

            // Assign a date-time chart client to the Range control. 
            rangeControl1.Client = dateTimeChartRangeControlClient1;

            // Generate a data table and bind the date-time client to it.
            dateTimeChartRangeControlClient1.DataProvider.DataSource = CreateChartData(50, 2);

            // Specify data members to bind the client.
            dateTimeChartRangeControlClient1.DataProvider.ArgumentDataMember = "Argument";
            dateTimeChartRangeControlClient1.DataProvider.ValueDataMember = "Value";
            dateTimeChartRangeControlClient1.DataProvider.SeriesDataMember = "Series";

            // Specify the chart range control client view.       
            AreaChartRangeControlClientView areaView = new AreaChartRangeControlClientView();
            dateTimeChartRangeControlClient1.DataProvider.TemplateView = areaView;

            // Customize the area view appearance. 
            areaView.AreaOpacity = 90;
            areaView.Color = Color.Aqua;
            areaView.ShowMarkers = true;
            areaView.MarkerSize = 5;
            areaView.MarkerColor = Color.Red;

            // Format labels of the date-time chart range control client. 
            dateTimeChartRangeControlClient1.GridOptions.LabelFormat = "D";

            // Specify the palette name to get a nice-looking chart.
            dateTimeChartRangeControlClient1.PaletteName = "Office";

            // Customize grid alignment, grid spacing, snap spacing and snap alignment of the chart range control client.
            dateTimeChartRangeControlClient1.GridOptions.GridAlignment = RangeControlDateTimeGridAlignment.Day;
            dateTimeChartRangeControlClient1.GridOptions.GridSpacing = 1;
            dateTimeChartRangeControlClient1.GridOptions.SnapSpacing = 1;
            dateTimeChartRangeControlClient1.GridOptions.SnapAlignment = RangeControlDateTimeGridAlignment.Week;

            // Change the date-time range of the chart range control client.
            dateTimeChartRangeControlClient1.Range.Min = DateTime.Now;
            dateTimeChartRangeControlClient1.Range.Max = DateTime.Now.AddDays(50);
        }

        private DataTable CreateChartData(int pointCount, int seriesCount) {

            // Create an empty table.
            DataTable table = new DataTable("Table1");

            // Add three columns to the table.
            table.Columns.Add("Argument", typeof(DateTime));
            table.Columns.Add("Value", typeof(Double));
            table.Columns.Add("Series", typeof(string));

            // Add data rows to the table.
            Random rand = new Random((int)DateTime.Now.Ticks);
            DataRow row = null;
            double value = 0;

            for (int seriesIndex = 0; seriesIndex < seriesCount; seriesIndex++) {
                for (int pointIndex = 0; pointIndex < pointCount; pointIndex++) {
                    value += (rand.NextDouble() - 0.3);
                    row = table.NewRow();
                    row["Argument"] = DateTime.Now.Date.AddDays(pointIndex);
                    row["Value"] = Math.Sin(pointIndex) + value;
                    row["Series"] = seriesIndex.ToString();
                    table.Rows.Add(row);
                }
            }
            return table;
        }
    }
}

Form1.vb

Imports System
Imports System.Data
Imports System.Drawing
Imports System.Windows.Forms
Imports DevExpress.XtraEditors

Namespace DateTimeChartRangeClient

    Partial Public Class Form1
        Inherits Form

        Public Sub New()
            InitializeComponent()

            ' Assign a date-time chart client to the Range control. 
            rangeControl1.Client = dateTimeChartRangeControlClient1

            ' Generate a data table and bind the date-time client to it.
            dateTimeChartRangeControlClient1.DataProvider.DataSource = CreateChartData(50, 2)

            ' Specify data members to bind the client.
            dateTimeChartRangeControlClient1.DataProvider.ArgumentDataMember = "Argument"
            dateTimeChartRangeControlClient1.DataProvider.ValueDataMember = "Value"
            dateTimeChartRangeControlClient1.DataProvider.SeriesDataMember = "Series"

            ' Specify the chart range control client view.       
            Dim areaView As New AreaChartRangeControlClientView()
            dateTimeChartRangeControlClient1.DataProvider.TemplateView = areaView

            ' Customize the area view appearance. 
            areaView.AreaOpacity = 90
            areaView.Color = Color.Aqua
            areaView.ShowMarkers = True
            areaView.MarkerSize = 5
            areaView.MarkerColor = Color.Red

            ' Format labels of the date-time chart range control client. 
            dateTimeChartRangeControlClient1.GridOptions.LabelFormat = "D"

            ' Specify the palette name to get a nice-looking chart.
            dateTimeChartRangeControlClient1.PaletteName = "Office"

            ' Customize grid alignment, grid spacing, snap spacing and snap alignment of the chart range control client.
            dateTimeChartRangeControlClient1.GridOptions.GridAlignment = RangeControlDateTimeGridAlignment.Day
            dateTimeChartRangeControlClient1.GridOptions.GridSpacing = 1
            dateTimeChartRangeControlClient1.GridOptions.SnapSpacing = 1
            dateTimeChartRangeControlClient1.GridOptions.SnapAlignment = RangeControlDateTimeGridAlignment.Week

            ' Change the date-time range of the chart range control client.
            dateTimeChartRangeControlClient1.Range.Min = Date.Now
            dateTimeChartRangeControlClient1.Range.Max = Date.Now.AddDays(50)
        End Sub

        Private Function CreateChartData(ByVal pointCount As Integer, ByVal seriesCount As Integer) As DataTable

            ' Create an empty table.
            Dim table As New DataTable("Table1")

            ' Add three columns to the table.
            table.Columns.Add("Argument", GetType(Date))
            table.Columns.Add("Value", GetType(Double))
            table.Columns.Add("Series", GetType(String))

            ' Add data rows to the table.
            Dim rand As New Random(CInt(Date.Now.Ticks))
            Dim row As DataRow = Nothing
            Dim value As Double = 0

            For seriesIndex As Integer = 0 To seriesCount - 1
                For pointIndex As Integer = 0 To pointCount - 1
                    value += (rand.NextDouble() - 0.3)
                    row = table.NewRow()
                    row("Argument") = Date.Now.Date.AddDays(pointIndex)
                    row("Value") = Math.Sin(pointIndex) + value
                    row("Series") = seriesIndex.ToString()
                    table.Rows.Add(row)
                Next pointIndex
            Next seriesIndex
            Return table
        End Function
    End Class
End Namespace

Inheritance

Object

ChartRangeControlClientDataProvider