using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using ZedGraph;
using System.IO;
namespace ZedGraphTest
{
public partial class Form1 : Form
{
private PointPairList m_pointPairList;
//CSV Writer
private StreamWriter m_CSVWriter;
public Form1()
{
InitializeComponent();
CreateGraph();
SetSize();
//csv
zedGraphControl.ContextMenuBuilder +=
new ZedGraphControl.ContextMenuBuilderEventHandler(MyC ontextMenuBuilder);
}
private void CreateGraph()
{
GraphPane myPane = zedGraphControl.GraphPane;
// Set the titles and axis labels
myPane.Title.Text = "ZedGraph Test";
myPane.XAxis.Title.Text = "theta (angle)";
myPane.YAxis.Title.Text = "Sin (theta)";
// Make up some data points from the Sine function
m_pointPairList = new PointPairList();
for (double x = 0; x <= 360; x += 10)
{
double y = Math.Sin(x * Math.PI / 180.0);
m_pointPairList.Add(x, y);
}
// Generate a blue curve with Plus symbols,
LineItem _myCurve1 = myPane.AddCurve("Sin (theta)",
m_pointPairList, Color.Blue, SymbolType.Plus);
// Fill the pane background with a color gradient
myPane.Fill = new Fill(Color.White, Color.FromArgb(220, 220, 255), 45F);
//Make the MajorGrids of Axes visible
myPane.XAxis.MajorGrid.IsVisible = true;
myPane.YAxis.MajorGrid.IsVisible = true;
// Calculate the Axis Scale Ranges
zedGraphControl.AxisChange();
}
private void Form1_Resize(object sender, EventArgs e)
{
SetSize();
}
private void SetSize()
{
zedGraphControl.Location = new Point(10, 10);
// Leave a small margin around the outside of the control
zedGraphControl.Size = new Size(this.ClientRectangle.Width - 20,
this.ClientRectangle.Height - 20);
}
private void MyContextMenuBuilder(ZedGraphControl control,
ContextMenuStrip menuStrip, Point mousePt,
ZedGraphControl.ContextMenuObjectState objState)
{
// create a new menu item
ToolStripMenuItem _item = new ToolStripMenuItem();
// This is the user-defined Tag so you can find this menu item later if necessary
_item.Name = "Export Data as CSV";
_item.Tag = "export_data_csv";
// This is the text that will show up in the menu
_item.Text = "Export Data as CSV";
// Add a handler that will respond when that menu item is selected
_item.Click += new System.EventHandler(ShowSaveAs*****portCSV);
// Add the menu item to the menu,as 3rd Item
menuStrip.Items.Insert(2, _item);
}
private void ShowSaveAs*****portCSV(object sender, System.EventArgs e)
{
try
{
//show saveAs CmdDlg
saveFileDialog1.Filter = "CSV files (*.csv)|*.csv";
saveFileDialog1.ShowDialog();
m_CSVWriter = new StreamWriter(saveFileDialog1.FileName);
WriteCSVToStream();
m_CSVWriter.Close();
MessageBox.Show("CSV File Saved", " ZedGraph ", MessageBoxButtons.OK);
}
catch (Exception ex)
{
m_CSVWriter.Close();
MessageBox.Show(ex.ToString());
}
}
private void WriteCSVToStream()
{
//First line is for Headers., X and Y Axis
string _xAxisHeader = CheckCSVString(zedGraphControl.GraphPane.XAxis.Tit le.Text);
string _yAxisHeader = CheckCSVString(zedGraphControl.GraphPane.YAxis.Tit le.Text);
m_CSVWriter.Write(_xAxisHeader + "," + _yAxisHeader + "\n");
//subsequent lines are having data
for (int i = 0; i < m_pointPairList.Count; i++)
{
m_CSVWriter.Write(m_pointPairList[i].X + "," + m_pointPairList[i].Y + "\n");
}
}
private string CheckCSVString(string _string)
{//Check to see if there are any characters that can disturb the CSV delimeters.
string _returnString = _string;
if (_string.IndexOfAny("\",\x0A\x0D".ToCharArray()) > -1)
{
_returnString = "\"" + _string.Replace("\"", "\"\"") + "\"";
}
return _returnString;
}
}
}
__________________________________________________ ______________
es un programa en C# lo ocupo en _Vb.net por favor lo unico
Eso motivara a que te lean mas rapido y te ayuden mejor.
