Hello World
Budeme potřebovat 1x textbox a j1x button2x klikneme na button a napíšeme textbox1.text = "Hello World";
nepomohlo? zkus video:
http://www.youtube.com/watch?v=8O-z9Qh2nzo
Kalkulačka, která umí pouze sčítat
Budeme potřebovat 3x textbox a 1x button
2x klikneme na button a napíšeme int cislo1;
int cislo2;
float vysledek;
cislo1 = int.Parse(textBox1.Text);
cislo2 = int.Parse(textBox2.Text);
vysledek = cislo1 + cislo2;
textBox3.Text = vysledek.ToString();
nepomohlo? zkus video
http://www.youtube.com/watch?v=JvUpzppZeXM
nepomohlo? zkus video
http://www.youtube.com/watch?v=JvUpzppZeXM
ScreenShoter
Budeme potřebovat 3x button 1x picturebox 1x timer a 1x saveFileDialog
Celý kód :
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace ScreenShoter1._0
{
public partial class Form1 : Form
{
Graphics g;
Size screenBounds = Screen.PrimaryScreen.Bounds.Size;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
{
this.Hide();
timer1.Start();
}
}
private void timer1_Tick(object sender, EventArgs e)
{
Bitmap capture = new Bitmap(screenBounds.Width, screenBounds.Height);
g = Graphics.FromImage(capture);
g.CopyFromScreen(Point.Empty, Point.Empty, screenBounds);
pictureBox1.Image = capture;
this.Show();
button2.Enabled = true;
timer1.Stop();
}
private void button2_Click(object sender, EventArgs e)
{
{
DialogResult res = saveFileDialog1.ShowDialog();
if (res == DialogResult.OK)
{
string ext = System.IO.Path.GetExtension(saveFileDialog1.FileName);
if (ext == ".jpg")
pictureBox1.Image.Save(saveFileDialog1.FileName, System.Drawing.Imaging.ImageFormat.Jpeg);
else if (ext == ".gif")
pictureBox1.Image.Save(saveFileDialog1.FileName, System.Drawing.Imaging.ImageFormat.Gif);
else if (ext == ".png")
pictureBox1.Image.Save(saveFileDialog1.FileName, System.Drawing.Imaging.ImageFormat.Png);
}
}
}
private void button3_Click(object sender, EventArgs e)
{
pictureBox1.Image = null;
}
}
}
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