[WF] Bai tap lap trinh window docx

Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
namespace Bai_6_4
{
public class GDIPlusDemo: System.Windows.Forms .Form
{
public GDIPlusDemo()
{
Text = "GDI+ Demo 6.4";
Size = new Size(240, 250);
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Graphics g = e.Graphics;
g.SmoothingMode = SmoothingMode.AntiAlias;
Pen pen = new Pen(Color.Black, 1);
int X = 40, Y = 30;
//ve elip
int w = 150, h = 150;
Rectangle rect = new Rectangle(new Point(X - 2, Y), new Size(w, h));
g.DrawEllipse(pen, rect);
int X2 = X + 30, Y2 = Y + 35;
//ve con mat trai hinh tam giac
Point pt1 = new Point(X2 , Y2);
Point pt2 = new Point(X2 + 25 , Y2);
Point pt3 = new Point(X2 + 11 , Y2 + 20);
Point[] points = { pt1, pt2, pt3 };

g.DrawPolygon(pen, points);
//ve con mat phai hinh tam giac
X2 = X2 + 60;
pt1 = new Point(X2 , Y2);
pt2 = new Point(X2 + 25 , Y2);
pt3 = new Point(X2 + 11 , Y2 + 20);
points = new Point [] { pt1, pt2, pt3 };
g.DrawPolygon(pen, points);
//ve chiec mui
X2 = X + 60; Y2 = Y + 70;
pt1 = new Point(X2 + 10 , Y2);
pt2 = new Point(X2 + 20 , Y2 + 20);
pt3 = new Point(X2 , Y2 + 20);
1
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
points = new Point[] { pt1, pt2, pt3 };
g.DrawPolygon(pen, points);
X2 = X + 52; Y2 = Y + 115;
//ve mieng
g.DrawRectangle(pen, X2, Y2, 40, 20);
Y2 = Y2 + 10 ;
// ve duong ngang mieng
g.DrawLine(pen, new Point ( X2, Y2), new Point ( X2 + 40, Y2));
// ve 7 duong xuong o mieng
X2 += 40 / 8; Y2 = Y2 - 10;
g.DrawLine(pen, new Point(X2, Y2), new Point(X2, Y2 + 20));
X2 += 40 / 8;
g.DrawLine(pen, new Point(X2, Y2), new Point(X2, Y2 + 20));
X2 += 40 / 8;
g.DrawLine(pen, new Point(X2, Y2), new Point(X2, Y2 + 20));

X2 += 40 / 8;
g.DrawLine(pen, new Point(X2, Y2), new Point(X2, Y2 + 20));
X2 += 40 / 8;
g.DrawLine(pen, new Point(X2, Y2), new Point(X2, Y2 + 20));
X2 += 40 / 8;
g.DrawLine(pen, new Point(X2, Y2), new Point(X2, Y2 + 20));
X2 += 40 / 8;
g.DrawLine(pen, new Point(X2, Y2), new Point(X2, Y2 + 20));
// ve hinh chu nhat o tren dau
rect = new Rectangle(new Point(X + 70, Y - 15), new Size(10, 15));
g.DrawRectangle(pen, rect);
}
static void Main()
{
Application.Run(new GDIPlusDemo ());
}
}
}
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
2
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
using System.Windows.Forms;
namespace Bai_6._v2
{
public partial class Form1 : Form
{
public Form1()

{
InitializeComponent();
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
int X = 150, Y = 220;
Graphics g = e.Graphics;
Font ftd = new Font("Arial", 10, FontStyle.Regular);
StringFormat sf = new StringFormat();
float[] ts = { 100, 100, 100, 100 };
sf.SetTabStops(0, ts);
string Toa_do = "0\t100\t200\t300\t400\t500";
g.DrawString(Toa_do, ftd, Brushes.Blue, X, Y + 10, sf);
int w = 4;
Pen pen = new Pen(Color.Blue, 4);
Rectangle rect = new Rectangle(new Point(X, Y),new Size (w,w));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 100, Y), new Size(w, w));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 200, Y), new Size(w, w));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 300, Y), new Size(w, w));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 400, Y), new Size(w, w));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 500, Y), new Size(w, w));
g.DrawRectangle(pen, rect);
pen = new Pen(Color.Blue, 2);
g.DrawLine (pen, new Point (X , Y + 2), new Point (X + 500, Y + 2));

}
private void btnVe_Click(object sender, EventArgs e)
{
if (txtL1.Text != "")
{
try
{
uint kt = uint.Parse(txtL1.Text);
if (kt > 500)
throw new Exception("Nằm trong khoảng 0 - 500!");
}
catch (FormatException)
{
MessageBox.Show("Nhập số! Ohke?", "Thông báo");
txtL1.Clear();
return;
}
catch (OverflowException)
{
MessageBox.Show("Số dương! OKe?", "Thông báo");
txtL1.Clear();
3
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
return;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
txtL1.Clear();
return;

}
}
if (txtL2.Text != "")
{
try
{
uint kt = uint.Parse(txtL2.Text);
if (kt > 500)
throw new Exception("Nằm trong khoảng 0 - 500!");
}
catch (FormatException)
{
MessageBox.Show("Nhập số! Ohke?", "Thông báo");
txtL2.Clear();
return;
}
catch (OverflowException)
{
MessageBox.Show("Số dương! OKe?", "Thông báo");
txtL2.Clear();
return;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
txtL2.Clear();
return;
}
}
if (txtL3.Text != "")

{
try
{
uint kt = uint.Parse(txtL3.Text);
if (kt > 500)
throw new Exception("Nằm trong khoảng 0 - 500!");
}
catch (FormatException)
{
MessageBox.Show("Nhập số! Ohke?", "Thông báo");
txtL3.Clear();
return;
}
catch (OverflowException)
{
MessageBox.Show("Số dương! OKe?", "Thông báo");
txtL3.Clear();
return;
}
catch (Exception ex)
{
4
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
MessageBox.Show(ex.Message);
txtL3.Clear();
return;
}
}
if ((txtL1.Text != "") && (txtL2.Text != "") && (txtL3.Text != ""))
{

int X = 150, Y = 95;
int max = int.Parse (txtL1.Text );
Graphics g = this.CreateGraphics();
Pen pen = new Pen(Color.Blue, 20);
g.DrawLine(pen, new Point(X, Y), new Point(max + X, Y));
Y += 50;
max = int.Parse(txtL2.Text);
pen = new Pen(Color.HotPink , 20);
g.DrawLine(pen, new Point(X , Y), new Point(max + X, Y));
Y += 50;
max = int.Parse(txtL3.Text);
pen = new Pen(Color.Green , 20);
g.DrawLine(pen, new Point(X, Y), new Point(max + X, Y));
}
else
{
MessageBox.Show("Chưa nhập đầy đủ thông tin! Oke?","Thông báo");
return;
}
}
private void btnXoa_Click(object sender, EventArgs e)
{
Invalidate();
txtL1.Clear();
txtL2.Clear();
txtL3.Clear();
}
private void Form1_Load(object sender, EventArgs e)
{
btnXoa_Click(sender, e);

}
}
}
5
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
namespace Bai_6._v2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private int tempX, tempY;
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Graphics g = e.Graphics;
Font toado = new Font("Arial", 10, FontStyle.Regular);
int X = 35, Y = 150;
Pen pen = new Pen(Color.Blue, 4);
g.DrawString("200", toado, Brushes.Blue, new Point(X, Y));
g.DrawString("150", toado, Brushes.Blue, new Point(X, Y + 50));
g.DrawString("100", toado, Brushes.Blue, new Point(X, Y + 100));
g.DrawString(" 50", toado, Brushes.Blue, new Point(X, Y + 150));

g.DrawString(" 0", toado, Brushes.Blue, new Point(X, Y + 200));
Rectangle rect = new Rectangle(new Point(X + 30, Y), new Size(4, 4));
g.DrawRectangle(pen, rect );
rect = new Rectangle(new Point(X + 30, Y + 50), new Size(4, 4));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 30, Y + 100), new Size(4, 4));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 30, Y + 150), new Size(4, 4));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 30, Y + 200), new Size(4, 4));
g.DrawRectangle(pen, rect);
6
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
Y += 220; X += 20;
g.DrawString(" 0", toado, Brushes.Blue, new Point(X, Y));
g.DrawString(" 50", toado, Brushes.Blue, new Point(X + 50, Y));
g.DrawString("100", toado, Brushes.Blue, new Point(X + 100, Y));
g.DrawString("150", toado, Brushes.Blue, new Point(X + 150, Y));
g.DrawString("200", toado, Brushes.Blue, new Point(X + 200, Y));
Y -= 20; X += 30 -20;
rect = new Rectangle(new Point(X, Y), new Size(4, 4));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 50, Y), new Size(4, 4));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 100, Y), new Size(4, 4));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 150, Y), new Size(4, 4));
g.DrawRectangle(pen, rect);
rect = new Rectangle(new Point(X + 200, Y), new Size(4, 4));
g.DrawRectangle(pen, rect);

pen = new Pen (Color.Red , 2);
g.DrawLine(pen, new Point(X+2, 140), new Point(X+1, Y));
g.DrawLine(pen, new Point(X, Y+2), new Point(X + 200 +20, Y+2));
tempX = X;
tempY = Y;
}
private void btnVe_Click(object sender, EventArgs e)
{
if (txtY.Text != "")
{
try
{
uint kt = uint.Parse(txtX.Text);
if (kt > 200)
throw new Exception("Nằm trong khoảng 0 - 200!");
}
catch (FormatException)
{
MessageBox.Show("Nhập số! Ohke?", "Thông báo");
txtX.Clear();
return;
}
catch (OverflowException)
{
MessageBox.Show("Số dương! OKe?", "Thông báo");
txtX.Clear();
return;
}
catch (Exception ex)
{

MessageBox.Show(ex.Message);
txtX.Clear();
return;
}
}
if (txtY.Text != "")
{
try
{
uint kt = uint.Parse(txtY.Text);
if (kt > 200)
7
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
throw new Exception("Nằm trong khoảng 0 - 200!");
}
catch (FormatException)
{
MessageBox.Show("Nhập số! Ohke?", "Thông báo");
txtY.Clear();
return;
}
catch (OverflowException)
{
MessageBox.Show("Số dương! OKe?", "Thông báo");
txtY.Clear();
return;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);

txtY.Clear();
return;
}
}
if (txtR.Text != "")
{
try
{
uint kt = uint.Parse(txtR.Text);
if (kt > 100)
throw new Exception("Ban kinh Qua lon!");
}
catch (FormatException)
{
MessageBox.Show("Nhập số! Ohke?", "Thông báo");
txtR.Clear();
return;
}
catch (OverflowException)
{
MessageBox.Show("Số dương! OKe?", "Thông báo");
txtR.Clear();
return;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
txtR.Clear();
return;
}

}
if ((txtX.Text != "") && (txtY.Text != "") && (txtR.Text != ""))
{
int X = int.Parse(txtX.Text), Y = int.Parse(txtY.Text), R =
int.Parse(txtR.Text);
Graphics g = this.CreateGraphics();
Pen pen = new Pen(Color.Blue, 2);
g.DrawEllipse(pen, tempX + X - R, tempY - Y -R, R*2, R*2);
}
else
{
8
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
MessageBox.Show("Chưa nhập đầy đủ thông tin! Oke?", "Thông báo");
return;
}
}
private void btnXoa_Click(object sender, EventArgs e)
{
Invalidate();
txtR.Clear();
txtX.Clear();
txtY.Clear();
}
}
}
using System;
using System.Collections;
using System.Drawing;
using System.Drawing.Drawing2D;

using System.Windows.Forms;
namespace bai6_7
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
int i = 0; string chuoi=null;
private ArrayList MyLL = new ArrayList();
private ArrayList MyLL1 = new ArrayList();
private ArrayList MyLL2 = new ArrayList();
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
i = i + 1; chuoi = i.ToString();
Pen pen = new Pen(Color.Blue, 2);
Graphics g = this.CreateGraphics();
g.SmoothingMode = SmoothingMode.AntiAlias;
if (mnuvua.Checked == true)
{
g.DrawRectangle(pen, e.X - 20, e.Y - 20, 40, 40);
MyLL.Add(new Point(e.X, e.Y));
9
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
g.DrawString(chuoi, Font, Brushes.DarkBlue, e.X-5, e.Y-5);
}
else
{
g.DrawRectangle(pen, e.X - 15, e.Y - 15, 30, 30);

MyLL1.Add(new Point(e.X, e.Y));
g.DrawString(chuoi, Font, Brushes.DarkBlue, e.X-5, e.Y-5);
}
MyLL2.Add(new Point(e.X, e.Y));
}
private void mnunho_Click(object sender, EventArgs e)
{
mnunho.Checked = true;
mnuvua.Checked = false;
}
private void mnuvua_Click(object sender, EventArgs e)
{
mnuvua.Checked = true;
mnunho.Checked = false;
}
private void Form1_Load(object sender, EventArgs e)
{
mnunho.Checked = true;
}
private void Form1_MinimumSizeChanged(object sender, EventArgs e)
{
Invalidate();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
Graphics g=e.Graphics;
Pen pen = new Pen(Color.Blue, 2);
foreach (Point pt in MyLL)
{
g.DrawRectangle(pen, pt.X - 20, pt.Y - 20, 40, 40);

}
foreach (Point pt1 in MyLL1)
{
g.DrawRectangle(pen, pt1.X - 15, pt1.Y - 15, 30, 30);
}
int i = 0; string chuoi;
foreach (Point pt2 in MyLL2)
{
i = i + 1;
chuoi = i.ToString();
g.DrawString(chuoi, Font, Brushes.DarkBlue, pt2.X - 5, pt2.Y - 5);
}
}
private void mnuxoa_Click(object sender, EventArgs e)
{
MyLL.Clear();
MyLL1.Clear();
MyLL2.Clear();
i = 0;
mnunho_Click(sender, e);
Invalidate();
}
}
10
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
}
using System;
using System.Collections;
using System.Drawing;
using System.Drawing.Drawing2D;

using System.Windows.Forms;
namespace bai6_7
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
int i = 0;
string chuoi=null;
private ArrayList MyLL = new ArrayList();
private ArrayList MyLL1 = new ArrayList();
private ArrayList MyLL2 = new ArrayList();
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
i = i + 1;
chuoi = i.ToString();
Graphics g;
Pen pen = new Pen(Color.Blue, 2);
g = this.CreateGraphics();
g.SmoothingMode = SmoothingMode.AntiAlias ;
if (menuNet_lientuc.Checked == true)
{
pen.DashStyle = DashStyle.Solid;
Rectangle rect = new Rectangle(new Point(e.X, e.Y), new Size(40, 40));
g.DrawEllipse(pen, rect);
MyLL.Add(new Point(e.X, e.Y));
g.DrawString(chuoi, Font, Brushes.DarkBlue, e.X+15, e.Y+15);
}

else
{
pen.DashStyle = DashStyle.Dash;
Rectangle rect = new Rectangle(new Point(e.X, e.Y), new Size(40, 40));
g.DrawEllipse(pen, rect);
MyLL1.Add(new Point(e.X, e.Y));
11
Bài tập lập trình Windows Form C# - Visual Studio .NET 2005
g.DrawString(chuoi, Font, Brushes.DarkBlue, e.X+15, e.Y+15);
}
MyLL2.Add(new Point (e.X, e.Y) );
}
private void mnunho_Click(object sender, EventArgs e)
{
menuNet_lientuc.Checked = true;
menuNet_gachgach.Checked = false;
}
private void mnuvua_Click(object sender, EventArgs e)
{
menuNet_gachgach.Checked = true;
menuNet_lientuc.Checked = false;
}
private void Form1_Load(object sender, EventArgs e)
{
menuNet_lientuc.Checked = true;
}
private void Form1_MinimumSizeChanged(object sender, EventArgs e)
{
Invalidate();
}

private void Form1_Paint(object sender, PaintEventArgs e)
{
Graphics g=e.Graphics;
Pen pen = new Pen(Color.Blue, 2);
foreach (Point pt in MyLL)
{
pen.DashStyle = DashStyle.Solid;
Rectangle rect = new Rectangle(new Point (pt.X , pt.Y), new Size(40, 40));
g.DrawEllipse(pen, rect);
}
foreach (Point pt1 in MyLL1)
{
pen.DashStyle = DashStyle.Dash;
Rectangle rect = new Rectangle(new Point(pt1.X, pt1.Y), new Size(40, 40));
g.DrawEllipse(pen, rect);
}
int i = 0; string chuoi;
foreach (Point pt2 in MyLL2)
{
i = i + 1;
chuoi = i.ToString();
g.DrawString(chuoi , Font, Brushes.DarkBlue, pt2.X + 15, pt2.Y + 15);
}
}
private void mnuxoa_Click(object sender, EventArgs e)
{
MyLL.Clear();
MyLL1.Clear();
MyLL2.Clear();
i = 0;

Invalidate();
}
}
}
12