1 using System;
2 using
System.Collections.Generic;
3 using
System.ComponentModel;
4 using
System.Data;
5 using
System.Drawing;
6 using
System.Text;
7 using
System.Windows.Forms;
8
9 namespace
VietGraph
10 {
11     
public partial class ThongTinDoThi : Form
12     {
13         
public ThongTinDoThi()
14         {
15             InitializeComponent();
16         }
17
18         
private void ThongTinDoThi_Load(object sender, EventArgs e)
19         {
20             
for (int i = 0; i < ExpressionHelper.ArrExpression.Count; i++)
21             {
22                 
this.cbBieuThuc.Items.Add(ExpressionHelper.ArrExpression[i].ToString());
23                 
this.cbBieuThuc.SelectedIndex = 0;
24             }
25             
this.rbDo.Checked = false;
26             
this.rbRadian.Checked = true;
27         }
28
29         
private void btnDong_Click(object sender, EventArgs e)
30         {
31             
this.rbDo.Checked = false;
32             
this.rbRadian.Checked = true;
33             
this.Close();
34         }
35
36         
private void btnXem_Click(object sender, EventArgs e)
37         {
38             lvXAndFX.Items.Clear();
39             Expression expression =
new Expression(cbBieuThuc.Text);
40            
41             
for (int i = Convert.ToInt32(ExpressionHelper.XStartValue); i <= Convert.ToInt32(ExpressionHelper.XEndValue); i++)
42             {
43                 
double Y = expression.Evaluate(i);
44                 ListViewItem lvi =
new ListViewItem(i.ToString());
45                 lvi.SubItems.Add(Y.ToString());
46                 lvXAndFX.Items.Add(lvi);
47             }
48         }
49
50         
private void rbDo_CheckedChanged(object sender, EventArgs e)
51         {
52             ExpressionHelper.BlnDo =
true;
53             ExpressionHelper.BlnRadian =
false;
54         }
55
56         
private void rbRadian_CheckedChanged(object sender, EventArgs e)
57         {
58             ExpressionHelper.BlnDo =
false;
59             ExpressionHelper.BlnRadian =
true;
60         }
61     }
62 }



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