• TCHART FROM DATATABLE


    using System;
    using System.Collections;
    using System.ComponentModel;
    using System.Drawing;
    using System.Data;

    using System.Windows.Forms;


    namespace Steema.TeeChart.Samples
    {
    public class DataConnect : Steema.TeeChart.Samples.BaseForm
    {
    private System.ComponentModel.IContainer components = null;

    //variables
    private DataTable sourceTable;
    private DataColumn colXData;
    private DataColumn colYData;
    private DataColumn colDesc;
    private Steema.TeeChart.Styles.Bar barSeries1;
    private System.Windows.Forms.CheckBox checkBox1;
    private System.Windows.Forms.CheckBox checkBox2;
    private Steema.TeeChart.Tools.GridBand gridBand1;
    private DataColumn colColor;

    public DataConnect()
    {
    // This call is required by the Windows Form Designer.
    InitializeComponent();
    }

    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    protected override void Dispose( bool disposing )
    {
    if( disposing )
    {
    if (components != null)
    {
    components.Dispose();
    }
    }
    base.Dispose( disposing );
    }

    #region Designer generated code
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {
    this.barSeries1 = new Steema.TeeChart.Styles.Bar();
    this.checkBox1 = new System.Windows.Forms.CheckBox();
    this.checkBox2 = new System.Windows.Forms.CheckBox();
    this.gridBand1 = new Steema.TeeChart.Tools.GridBand();
    this.panel1.SuspendLayout();
    this.SuspendLayout();
    //
    // textBox1
    //
    this.textBox1.Name = "textBox1";
    this.textBox1.Size = new System.Drawing.Size(592, 73);
    this.textBox1.Text = "This example demonstrates how to connect a TeeChart XY Series to a DataTable at r" +
    "untime. Check/uncheck the checkboxes to include/exclude the X value and Label" +
    " DataTable fields from the Series.";
    //
    // panel1
    //
    this.panel1.Controls.Add(this.checkBox2);
    this.panel1.Controls.Add(this.checkBox1);
    this.panel1.Name = "panel1";
    this.panel1.Size = new System.Drawing.Size(592, 31);
    //
    // tChart1
    //
    //
    // tChart1.Aspect
    //
    this.tChart1.Aspect.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
    this.tChart1.Aspect.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
    //
    // tChart1.Header
    //
    this.tChart1.Header.Lines = new string[] {
    "tChart1"};
    this.tChart1.Location = new System.Drawing.Point(0, 104);
    this.tChart1.Name = "tChart1";
    //
    // tChart1.Panel
    //
    //
    // tChart1.Panel.Brush
    //
    this.tChart1.Panel.Brush.Color = System.Drawing.Color.FromArgb(((System.Byte)(254)), ((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224)));
    this.tChart1.Series.Add(this.barSeries1);
    this.tChart1.Size = new System.Drawing.Size(592, 264);
    this.tChart1.Tools.Add(this.gridBand1);
    //
    // tChart1.Walls
    //
    //
    // tChart1.Walls.Back
    //
    //
    // tChart1.Walls.Back.Brush
    //
    this.tChart1.Walls.Back.Brush.Color = System.Drawing.Color.FromArgb(((System.Byte)(254)), ((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255)));
    this.tChart1.Walls.Back.Transparent = false;
    //
    // tChart1.Walls.Bottom
    //
    //
    // tChart1.Walls.Bottom.Pen
    //
    this.tChart1.Walls.Bottom.Pen.Visible = false;
    this.tChart1.Walls.Bottom.Size = 5;
    //
    // tChart1.Walls.Left
    //
    //
    // tChart1.Walls.Left.Pen
    //
    this.tChart1.Walls.Left.Pen.Visible = false;
    this.tChart1.Walls.Left.Size = 5;
    //
    // barSeries1
    //
    //
    // barSeries1.Brush
    //
    this.barSeries1.Brush.Color = System.Drawing.Color.Red;
    this.barSeries1.Cursor = System.Windows.Forms.Cursors.Cross;
    //
    // barSeries1.Marks
    //
    //
    // barSeries1.Marks.Symbol
    //
    //
    // barSeries1.Marks.Symbol.Shadow
    //
    this.barSeries1.Marks.Symbol.Shadow.Height = 1;
    this.barSeries1.Marks.Symbol.Shadow.Visible = true;
    this.barSeries1.Marks.Symbol.Shadow.Width = 1;
    this.barSeries1.Title = "barSeries1";
    //
    // barSeries1.XValues
    //
    this.barSeries1.XValues.DataMember = "X";
    this.barSeries1.XValues.Order = Steema.TeeChart.Styles.ValueListOrder.Ascending;
    //
    // barSeries1.YValues
    //
    this.barSeries1.YValues.DataMember = "Bar";
    //
    // checkBox1
    //
    this.checkBox1.Checked = true;
    this.checkBox1.CheckState = System.Windows.Forms.CheckState.Checked;
    this.checkBox1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
    this.checkBox1.Location = new System.Drawing.Point(16, 6);
    this.checkBox1.Name = "checkBox1";
    this.checkBox1.TabIndex = 0;
    this.checkBox1.Text = "Include &Labels";
    this.checkBox1.CheckedChanged += new System.EventHandler(this.checkBox1_CheckedChanged);
    //
    // checkBox2
    //
    this.checkBox2.Checked = true;
    this.checkBox2.CheckState = System.Windows.Forms.CheckState.Checked;
    this.checkBox2.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
    this.checkBox2.Location = new System.Drawing.Point(120, 6);
    this.checkBox2.Name = "checkBox2";
    this.checkBox2.Size = new System.Drawing.Size(120, 24);
    this.checkBox2.TabIndex = 1;
    this.checkBox2.Text = "Include &XValues";
    this.checkBox2.CheckedChanged += new System.EventHandler(this.checkBox2_CheckedChanged);
    //
    // gridBand1
    //
    this.gridBand1.Axis = this.tChart1.Axes.Left;
    //
    // gridBand1.Band1
    //
    this.gridBand1.Band1.Color = System.Drawing.Color.FromArgb(((System.Byte)(127)), ((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224)));
    //
    // gridBand1.Band2
    //
    this.gridBand1.Band2.Color = System.Drawing.Color.FromArgb(((System.Byte)(127)), ((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255)));
    //
    // DataConnect
    //
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(592, 368);
    this.Name = "DataConnect";
    this.Load += new System.EventHandler(this.DataConnect_Load);
    this.panel1.ResumeLayout(false);
    this.ResumeLayout(false);

    }
    #endregion

    private void DataConnect_Load(object sender, System.EventArgs e)
    {
    tChart1.Axes.Bottom.Labels.Style=AxisLabelStyle.Value;
    CreateTable();
    LoadData();
    }

    private void CreateTable()
    {
    Random r=new Random(255);

    // Create DataTable
    sourceTable = new DataTable("sourceTable");
    colXData = new DataColumn("XData",Type.GetType("System.Double"));
    colYData = new DataColumn("YData",Type.GetType("System.Double"));
    colDesc = new DataColumn("Desc",Type.GetType("System.String"));
    colColor = new DataColumn("Color",Type.GetType("System.Object"));

    sourceTable.Columns.Add(colXData);
    sourceTable.Columns.Add(colYData);
    sourceTable.Columns.Add(colDesc);
    sourceTable.Columns.Add(colColor);

    // Add table items.
    DataRow NewRow;
    double lastVal=0;
    for(int i = 0; i <10; i++)
    {
    Color cc=Color.FromArgb(r.Next(255),r.Next(255),r.Next(255));
    NewRow = sourceTable.NewRow();
    NewRow["Desc"] = "Label"+i.ToString();
    NewRow["XData"] = lastVal;
    NewRow["YData"] = r.Next(10);
    NewRow["Color"] = cc;
    sourceTable.Rows.Add(NewRow);
    lastVal=lastVal+5+r.Next(5);
    }

    }

    private void LoadData()
    {
    tChart1[0].Clear();

    //include Labels
    if (checkBox1.Checked)
    tChart1[0].LabelMember=colDesc.ToString();
    else
    tChart1[0].LabelMember="";

    //include XValues
    if (checkBox2.Checked)
    tChart1[0].XValues.DataMember=colXData.ToString();
    else
    tChart1[0].XValues.DataMember="";

    tChart1[0].ColorMember=colColor.ToString();
    tChart1[0].YValues.DataMember=colYData.ToString();
    tChart1[0].DataSource=sourceTable;
    }

    private void checkBox1_CheckedChanged(object sender, System.EventArgs e)
    {
    LoadData();
    tChart1[0].CheckDataSource();
    }

    private void checkBox2_CheckedChanged(object sender, System.EventArgs e)
    {
    LoadData();
    tChart1[0].CheckDataSource();
    }

    }
    }

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  • 原文地址:https://www.cnblogs.com/qiu18359243869/p/10549522.html
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