Gorsel Programlama

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;</div>
namespace sinav_bildir
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
OleDbConnection bag = new OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=data.mdb");
OleDbCommand kmt = new OleDbCommand();
OleDbDataAdapter adtr = new OleDbDataAdapter();
DataSet dtst = new DataSet();
string[] dersadi = new string[10];
string[] sinav_tarihi = new string[10];
int r, g, b;
Random rs = new Random();
//Label[] labelDizi;
public void sinavlar()
{
TimeSpan tfark;
int i = 0;
string gunfark;
try
{
bag.Open();
kmt.Connection = bag;
kmt.CommandText = "Select * from sinavbil";
OleDbDataReader oku;
oku = kmt.ExecuteReader();
while (oku.Read())
{
tfark = DateTime.Parse(DateTime.Now.ToLongDateString()) - DateTime.Parse(oku[1].ToString());
gunfark = tfark.TotalDays.ToString();
if (int.Parse(gunfark) == -1)
{</div>
dersadi[i] = oku[0].ToString();
sinav_tarihi[i] = oku[1].ToString();
if (i == 0)
{
label3.Visible = true;
label3.Text = dersadi[i] + "      " + sinav_tarihi[i];</div>
}
if (i == 1)
{
label4.Visible = true;
label4.Text = dersadi[i] + "      " + sinav_tarihi[i];
}
if (i == 2)
{
label5.Visible = true;
label5.Text = dersadi[i] + "      " + sinav_tarihi[i];
}
if (i == 3)
{
label6.Visible = true;
label6.Text = dersadi[i] + "      " + sinav_tarihi[i];
}i++;
}
}
bag.Close();
oku.Dispose();
}
catch
{
;
}
}
private void Form1_Load(object sender, EventArgs e)
{
label3.Visible = false;
label4.Visible = false;
label5.Visible = false;
label6.Visible = false;
sinavlar();
timer1.Enabled = true;
timer1.Interval = 100;</div>
}</div>
private void btnKaydet_Click(object sender, EventArgs e)
{
try
{
if (textBox1.Text != "")
{
bag.Open();
kmt.Connection = bag;
kmt.CommandText = "INSERT INTO sinavbil(DersAdi,SinavTarihi) VALUES ('" + textBox1.Text + "','" + dateTimePicker1.Text + "') ";
kmt.ExecuteNonQuery();
kmt.Dispose();
bag.Close();
textBox1.Clear();
sinavlar();
MessageBox.Show("Kayıt işlemi tamamlandı !");
}
else MessageBox.Show("Boş alanları doldurunuz !");
}
catch
{
;
}
}</div>
private void timer1_Tick(object sender, EventArgs e)
{
r = rs.Next(256);
g = rs.Next(256);
b = rs.Next(256);
label3.ForeColor = Color.FromArgb(r, g, b);
label4.ForeColor = Color.FromArgb(r, g, b);
label5.ForeColor = Color.FromArgb(r, g, b);
label6.ForeColor = Color.FromArgb(r, g, b);
}
}
}

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