[WF] Bai tap lap trinh window docx

Trang 1

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 };

//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);

Trang 2

points = new Point[] { pt1, pt2, pt3 };

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;

// 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;

Trang 3

namespace Bai_6._v2

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

{

base.OnPaint(e);

int X = 150, Y = 220;

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));

rect = new Rectangle(new Point(X + 100, Y), new Size(w, w));

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();

Trang 4

return;

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

txtL1.Clear();

return;

}

{

try

{

if (kt > 500)

}

{

txtL2.Clear();

return;

}

{

txtL2.Clear();

return;

}

{

txtL2.Clear();

return;

}

{

try

{

if (kt > 500)

}

{

txtL3.Clear();

return;

}

{

txtL3.Clear();

return;

}

{

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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();

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);

}

Trang 6

using System;

using System.Collections.Generic;

namespace Bai_6._v2

{

public Form1()

{

}

private int tempX, tempY;

{

base.OnPaint(e);

Font toado = new Font("Arial", 10, FontStyle.Regular);

int X = 35, Y = 150;

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));

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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));

Y -= 20; X += 30 -20;

rect = new Rectangle(new Point(X, Y), new Size(4, 4));

rect = new Rectangle(new Point(X + 50, Y), new Size(4, 4));

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)

}

{

txtX.Clear();

return;

}

{

txtX.Clear();

return;

}

{

txtX.Clear();

return;

}

if (txtY.Text != "")

{

try

{

uint kt = uint.Parse(txtY.Text);

if (kt > 200)

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}

{

txtY.Clear();

return;

}

{

txtY.Clear();

return;

}

{

txtY.Clear();

return;

}

if (txtR.Text != "")

{

try

{

uint kt = uint.Parse(txtR.Text);

if (kt > 100)

throw new Exception("Ban kinh Qua lon!");

}

{

txtR.Clear();

return;

}

{

txtR.Clear();

return;

}

{

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);

g.DrawEllipse(pen, tempX + X - R, tempY - Y -R, R*2, R*2);

}

else

{

Trang 9

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;

namespace bai6_7

{

public Form1()

{

}

int i = 0; string chuoi=null;

private ArrayList MyLL = new ArrayList();

private ArrayList MyLL1 = new ArrayList();

private void Form1_MouseDown(object sender, MouseEventArgs e)

{

i = i + 1; chuoi = i.ToString();

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));

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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);

}

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;

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();

}

Trang 11

using System;

using System.Collections;

namespace bai6_7

{

public Form1()

{

}

int i = 0;

string chuoi=null;

private ArrayList MyLL = new ArrayList();

private void Form1_MouseDown(object sender, MouseEventArgs e)

{

i = i + 1;

chuoi = i.ToString();

Graphics g;

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);

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