Sınav Tarihi Hatırlatma Vb.net Açık Kodları

Imports System.Data.OleDbPublic Class Form1
Private bag As New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=data.mdb")
Private kmt As New OleDbCommand()
Private adtr As New OleDbDataAdapter()
Private dtst As New DataSet()
Private dersadi As String() = New String(9) {}
Private sinav_tarihi As String() = New String(9) {}
Private r As Integer, g As Integer, b As Integer
Private rs As New Random()
'Label[] labelDizi;
Public Sub sinavlar()
Dim tfark As TimeSpan
Dim i As Integer = 0
Dim gunfark As String
Try
bag.Open()
kmt.Connection = bag
kmt.CommandText = "Select * from sinavbil"
Dim oku As OleDbDataReader
oku = kmt.ExecuteReader()
While oku.Read()
tfark = DateTime.Parse(DateTime.Now.ToLongDateString()) - DateTime.Parse(oku(1).ToString())
gunfark = tfark.TotalDays.ToString()
If Integer.Parse(gunfark) = -1 Then dersadi(i) = oku(0).ToString()
sinav_tarihi(i) = oku(1).ToString()
If i = 0 Then
label3.Visible = True
 
label3.Text = (dersadi(i) & " ") + sinav_tarihi(i)
End If
If i = 1 Then
label4.Visible = True
label4.Text = (dersadi(i) & " ") + sinav_tarihi(i)
End If
If i = 2 Then
label5.Visible = True
label5.Text = (dersadi(i) & " ") + sinav_tarihi(i)
End If
If i = 3 Then
label6.Visible = True
label6.Text = (dersadi(i) & " ") + sinav_tarihi(i)
End If
 
i += 1
End If
End While
bag.Close()
oku.Dispose()
Catch
 
End Try
End Sub
 
Private Sub Form1_Load_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
label4.Visible = False
label5.Visible = False
label6.Visible = False
sinavlar()
timer1.Enabled = True
 
timer1.Interval = 100
End Sub
 
Private Sub btnKaydet_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnKaydet.Click
Try
If textBox1.Text <> "" Then
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 !")
End If
Catch
 
End Try
End Sub
 
Private Sub timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles timer1.Tick
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)
 
End Sub
End Class