Chart pada C#.NET
Pada Microsoft Visual
Studio/Visual C#.NET tidak disediakan komponen Chart, komponen ini tersedia
pada versi Visual Studio sebelumnya yaitu Visual Studio 6.0 dengan nama
Microsoft Chart Control 6.0. Untuk memanggil komponen tersebut dapat dilakukan
sama dengan ketika menambahkan komponen Windows Media Player, yaitu pada Toolbox klik kanan Pilih Choose Items.
Setelah muncul dialog Choose
Toolbox Items, kemudian pilih Tab COM Components. Kemudian cari dan cek
Microsoft Chart Control 6.0. Klik OK.
Secara otomatis komponen Microsoft
Chart Control akan ditambahkan pada Toolbox. Kemudian komponen MS Chart
tersebut dapat ditambahkan pada Form. Untuk mengubah-ubah setting dari komponen
MSChart yang telah ditambahkan pada Form
dapat dilakukan dengan mengubah-ubah properti dari MSChart pada Window
Properties maupun dengan cara klik kanan komponen MSChart pada Form kemudian
pilih ActiveX – Properties.
Akan muncul dialog Properties dari
MSChart, pada dialog tersebut dapat diubah-ubah berbagai setting dari komponen
MSChart antara lain Chart Type, Chart Options, Series, Axis, Text, Fonts, dsb.
Setelah mengubah setting/properti selesai, klik OK.
Untuk memasukkan data yang akan
ditampilkan komponen MSChart harus dilakukan dari kode program. Berikut ini
contoh kode program yang dapat dipakai untuk mengolah MSChart secara dinamis
dari kode program, baik untuk Chart yang berbentuk Pie, Line, Bar, dll.
using
System;
using
System.Collections.Generic;
using
System.ComponentModel;
using
System.Data;
using
System.Drawing;
using
System.Text;
using
System.Windows.Forms;
namespace
Chart
{
public partial class FChart : Form
{
public FChart()
{
InitializeComponent();
}
private void bPie_Click(object sender,
EventArgs e)
{
cChart.chartType =
MSChart20Lib.VtChChartType.VtChChartType2dPie;
//cChart.chartType =
MSChart20Lib.VtChChartType.VtChChartType3dPie;
int[,] MyArray;
MyArray = new int[1, 5];
MyArray[0, 0] = 5;
MyArray[0, 1] = 4;
MyArray[0, 2] = 3;
MyArray[0, 3] = 2;
MyArray[0, 4] = 1;
cChart.ChartData = MyArray;
cChart.Row = 1;
cChart.RowLabel = "Hasil
Pemilu";
cChart.Column = 1;
cChart.ColumnLabel = "Partai
Merah";
cChart.Column = 2;
cChart.ColumnLabel = "Partai
Kuning";
cChart.Column = 3;
cChart.ColumnLabel = "Partai
Biru";
cChart.Column = 4;
cChart.ColumnLabel = "Partai
Hijau";
cChart.Column = 5;
cChart.ColumnLabel = "Partai
Putih";
cChart.Title.Text = "Chart
Pie";
cChart.ShowLegend = true;
}
private void bLine_Click(object sender,
EventArgs e)
{
cChart.chartType =
MSChart20Lib.VtChChartType.VtChChartType2dLine;
//cChart.chartType =
MSChart20Lib.VtChChartType.VtChChartType3dLine
double[,] MyArray;
MyArray = new double[3, 5];
Random rnd = new Random();
//MyArray[0, 0] = rnd.Next(11);
//MyArray[0, 1] = rnd.Next(11);
//MyArray[0, 2] = rnd.Next(11);
//MyArray[0, 3] = rnd.Next(11);
//MyArray[0, 4] = rnd.Next(11);
//MyArray[1, 0] = rnd.Next(11);
//MyArray[1, 1] = rnd.Next(11);
//MyArray[1, 2] = rnd.Next(11);
//MyArray[1, 3] = rnd.Next(11);
//MyArray[1, 4] = rnd.Next(11);
//MyArray[2, 0] = rnd.Next(11);
//MyArray[2, 1] = rnd.Next(11);
//MyArray[2, 2] = rnd.Next(11);
//MyArray[2, 3] = rnd.Next(11);
//MyArray[2, 4] = rnd.Next(11);
int i, j;
for (i = 0; i < MyArray.GetLength(0);
i++)
{
for (j = 0; j <
MyArray.GetLength(1); j++)
{
MyArray[i, j] =
rnd.NextDouble () * 10;
}
}
cChart.ChartData = MyArray;
//int i, j;
//cChart.RowCount = 3;
//cChart.ColumnCount = 5;
//for (i = i; i <=
MyArray.GetLength(0); i++)
//{
// for (j = i; j <= MyArray.GetLength(1);
j++)
// {
//
cChart.Row = (short)(i);
// cChart.Column = (short)(j);
// cChart.Data = (rnd.NextDouble () *
10).ToString();
// }
//}
cChart.Row = 1;
cChart.RowLabel = "Satu";
cChart.Row = 2;
cChart.RowLabel = "Dua";
cChart.Row = 3;
cChart.RowLabel = "Tiga";
cChart.Column = 1;
cChart.ColumnLabel = "Nilai
A";
cChart.Column = 2;
cChart.ColumnLabel = "Nilai
B";
cChart.Column = 3;
cChart.ColumnLabel = "Nilai
C";
cChart.Column = 4;
cChart.ColumnLabel = "Nilai
D";
cChart.Column = 5;
cChart.ColumnLabel = "Nilai
E";
cChart.Title.Text = "Chart
Line";
cChart.ShowLegend = true;
}
private void bBar_Click(object sender,
EventArgs e)
{
cChart.chartType =
MSChart20Lib.VtChChartType.VtChChartType2dBar;
//cChart.chartType =
MSChart20Lib.VtChChartType.VtChChartType3dBar;
double[,] MyArray;
MyArray = new double[3, 5];
Random rnd = new Random();
//MyArray[0, 0] = rnd.NextDouble()
* 10;
//MyArray[0, 1] = rnd.NextDouble() * 10;
//MyArray[0, 2] = rnd.NextDouble()
* 10;
//MyArray[0, 3] = rnd.NextDouble()
* 10;
//MyArray[0, 4] = rnd.NextDouble()
* 10;
//MyArray[1, 0] = rnd.NextDouble()
* 10;
//MyArray[1, 1] = rnd.NextDouble()
* 10;
//MyArray[1, 2] = rnd.NextDouble()
* 10;
//MyArray[1, 3] = rnd.NextDouble()
* 10;
//MyArray[1, 4] = rnd.NextDouble()
* 10;
//MyArray[2, 0] = rnd.NextDouble()
* 10;
//MyArray[2, 1] = rnd.NextDouble()
* 10;
//MyArray[2, 2] = rnd.NextDouble()
* 10;
//MyArray[2, 3] = rnd.NextDouble()
* 10;
//MyArray[2, 4] = rnd.NextDouble()
* 10;
//int i, j;
//for (i = 0; i <
MyArray.GetLength(0); i++)
//{
// for (j = 0; j < MyArray.GetLength(1);
j++)
// {
// MyArray[i, j] = rnd.Next(11);
// }
//}
//cChart.ChartData = MyArray;
int i, j;
cChart.RowCount = 3;
cChart.ColumnCount = 5;
for (i = 1; i <=
MyArray.GetLength(0); i++)
{
for (j = 1; j <=
MyArray.GetLength(1); j++)
{
cChart.Row = (short)(i);
cChart.Column = (short)(j);
cChart.Data =
(rnd.Next(11)).ToString();
}
}
cChart.Row = 1;
cChart.RowLabel = "Satu";
cChart.Row = 2;
cChart.RowLabel = "Dua";
cChart.Row = 3;
cChart.RowLabel = "Tiga";
cChart.Column = 1;
cChart.ColumnLabel = "Nilai
A";
cChart.Column = 2;
cChart.ColumnLabel = "Nilai
B";
cChart.Column = 3;
cChart.ColumnLabel = "Nilai
C";
cChart.Column = 4;
cChart.ColumnLabel = "Nilai
D";
cChart.Column = 5;
cChart.ColumnLabel = "Nilai
E";
cChart.Title.Text = "Chart
Line";
cChart.ShowLegend = true;
}
}
}
Setelah dijalankan, hasilnya dapat
dilihat pada tampilan berikut ini :
