frm_login.vb

application file which contains the notes on Ado.net

#End Region
    Dim MyConnection As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\PIS.mdb")
    Dim MyCommand
    Dim e As Exception
    Dim MyCommand2
    Dim MyReader As OleDbDataReader
    Dim MyReader2 As OleDbDataReader
    Dim ref
    Dim currenttime As Date
    Dim tim = currenttime.Now().ToShortTimeString
#Region "CODE STARTS HERE"
    Function showmain()
        ref = New frm_main
        ref.show()
    End Function
    Function verify() As Boolean
        If TextBox2.Text = TextBox3.Text And empty() = False Then
            Return True
        Else
            Return False
        End If
    End Function
    Function clear()
        TextBox1.Text = ""
        TextBox2.Text = ""
    End Function
    Function empty() As Boolean
        If TextBox1.Text = "" Or TextBox2.Text = "" Or TextBox3.Text = "" Then
            Return True
        ElseIf TextBox1.Text = "" AndAlso TextBox2.Text = "" AndAlso TextBox3.Text = "" Then
            Return True
        Else
            Return False
        End If
    End Function
    Private Sub frm_login_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        MyConnection.Open()
        MyCommand = New OleDbCommand("SELECT * FROM login WHERE ID ='" & TextBox1.Text & "'", MyConnection)
        MyReader = MyCommand.ExecuteReader()
        While MyReader.Read
            TextBox3.Text = MyReader("pass")
        End While

        MyConnection.Close()
        MyReader.Close()
        MyCommand.dispose()

        If verify() = True Then
            MsgBox("Your log in time is " + tim, MsgBoxStyle.Information.OKOnly, "PrisLogix's PIS")
            clear()
            showmain()
        ElseIf empty() = True Or TextBox3.Text = "" Then
            MsgBox("Please fill in the fields", MsgBoxStyle.OKOnly, "PrisLogix's PIS")
        ElseIf TextBox3.Text = "" And TextBox2.Text = "" Then
            MsgBox("Please fill in the fields", MsgBoxStyle.OKOnly, "PrisLogix's PIS")
        Else
            MsgBox("Password incorrect please enter again", MsgBoxStyle.OKOnly, "PrisLogix's PIS")
        End If

    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Me.Close()
        Application.Exit()
    End Sub
    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        PictureBox1.Parent = Me
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

    End Sub
    '
    '
    '   '   Const WM_ENDSESSION As Integer = &H16
    '  '
    ' '  Dim osexit As Boolean = False
    '
    '   '

    '  '   Protected Overrides Sub WndProc(ByRef e As Message)
    '
    '       '       If (e.Msg = WM_ENDSESSION) Then
    '          '
    '         '          osexit = True
    '
    '           '           Application.Exit()
    ''          '
    '        '      End If
    '
    '       MyBaseProc(e)
    ''       '
    '
    '    End Sub
    Private Sub Label4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label4.Click

    End Sub
    Private Sub Label4_MouseHover(ByVal sender As Object, ByVal e As System.EventArgs) Handles Label4.MouseHover
        GroupBox1.Visible = True
    End Sub
#End Region
#Region "GLOW CODE"

    Private Sub MouseEnterEvent(ByVal sender As Object, ByVal e As System.EventArgs) _
        Handles Button1.MouseEnter, Button2.MouseEnter, Button3.MouseEnter

        ' A simple event handler that fires when the user's mouse arrow rolls 
        ' over any of the buttons.  It passes the button's identity to the Glow sub.

        Dim ctrl As Control = CType(sender, Control)
        Glow(ctrl, True)

    End Sub

    Private Sub MouseLeaveEvent(ByVal sender As Object, ByVal e As System.EventArgs) _
    Handles Button1.MouseLeave, Button2.MouseLeave, Button3.MouseLeave

        ' A simple event handler that fires when the user's mouse arrow leaves the
        ' area of any of the buttons.  It passes the button's identity to the Glow sub.

        Dim ctrl As Control = CType(sender, Control)
        Glow(ctrl, False)

    End Sub

    Private Sub Glow(ByVal ctrl As Control, ByVal Hovering As Boolean)

        Dim Sb_R, Sb_G, Sb_B As Int16 '           <--- RGB values for the starting backcolor
        Dim Sf_R, Sf_G, Sf_B As Int16 '           <--- RGB values for the starting forecolor
        Dim Eb_R, Eb_G, Eb_B As Int16 '           <--- RGB values for the ending backcolor
        Dim Ef_R, Ef_G, Ef_B As Int16 '           <--- RGB values for the ending forecolor

        Select Case Hovering  ' True for MouseEnter, False for MouseLeave
            Case True
                Sb_R = SystemColors.Control.R           ' Assign the variables the 
                Sb_G = SystemColors.Control.G           ' appropriate values based
                Sb_B = SystemColors.Control.B           ' on system-defined colors
                '                                         for control and control
                Sf_R = SystemColors.ControlText.R       ' text.
                Sf_G = SystemColors.ControlText.G
                Sf_B = SystemColors.ControlText.B

                Eb_R = SystemColors.ActiveCaption.R     ' Assign the variables the
                Eb_G = SystemColors.ActiveCaption.G     ' appropriate values based
                Eb_B = SystemColors.ActiveCaption.B     ' on system-defined colors
                '                                         for the title bar and the
                Ef_R = SystemColors.ActiveCaptionText.R ' title bar's text.
                Ef_G = SystemColors.ActiveCaptionText.G
                Ef_B = SystemColors.ActiveCaptionText.B
            Case False
                Sb_R = SystemColors.ActiveCaption.R     ' Assign the variables the
                Sb_G = SystemColors.ActiveCaption.G     ' appropriate values based
                Sb_B = SystemColors.ActiveCaption.B     ' on system-defined colors
                '                                         for the title bar and the
                Sf_R = SystemColors.ActiveCaptionText.R ' title bar's text.
                Sf_G = SystemColors.ActiveCaptionText.G
                Sf_B = SystemColors.ActiveCaptionText.B

                Eb_R = SystemColors.Control.R           ' Assign the variables the 
                Eb_G = SystemColors.Control.G           ' appropriate values based
                Eb_B = SystemColors.Control.B           ' on system-defined colors
                '                                         for control and control
                Ef_R = SystemColors.ControlText.R       ' text.
                Ef_G = SystemColors.ControlText.G
                Ef_B = SystemColors.ControlText.B
        End Select

        Dim b_RIncrement As Int16 = Round(((Eb_R - Sb_R) / 16), 0)      ' Find the increments that
        Dim b_GIncrement As Int16 = Round(((Eb_G - Sb_G) / 16), 0)      ' the RGB values will take;
        Dim b_BIncrement As Int16 = Round(((Eb_B - Sb_B) / 16), 0)      ' 1/16th of the difference
        '                                                                 between the start and end
        Dim f_RIncrement As Int16 = Round(((Ef_R - Sf_R) / 16), 0)      ' values, rounded to the 
        Dim f_GIncrement As Int16 = Round(((Ef_G - Sf_G) / 16), 0)      ' nearest integer.
        Dim f_BIncrement As Int16 = Round(((Ef_B - Sf_B) / 16), 0)

        Dim bR As Int16 = Sb_R ' \
        Dim bG As Int16 = Sb_G '  }--  the RGB values for the backcolor as it changes.
        Dim bB As Int16 = Sb_B ' /

        Dim fR As Int16 = Sf_R ' \
        Dim fG As Int16 = Sf_G '  }--  the RGB values for the forecolor as it changes.
        Dim fB As Int16 = Sf_B ' /

        Dim count As Int16
        For count = 0 To 14
            bR += b_RIncrement          ' Add the appropriate increments to the 
            bG += b_GIncrement          ' RGB values.  The result is a nifty
            bB += b_BIncrement          ' "cross-fade" effect.
            fR += f_RIncrement
            fG += f_GIncrement
            fB += f_BIncrement

            ctrl.BackColor = Color.FromArgb(bR, bG, bB)   ' Repaint the button using the
            ctrl.ForeColor = Color.FromArgb(fR, fG, fB)   ' current RGB values, and refresh
            ctrl.Refresh()                                ' the button.

            Threading.Thread.Sleep(30 - (count * 2))      ' Wait a certain number of milliseconds,
            '                                               which is a factor of the current count.
            '                                               I tweaked these numbers to get a decent
            '                                               effect; feel free to adjust these 
            '                                               numbers to achieve an effect you like.
        Next
        Select Case Hovering
            Case True
                ctrl.BackColor = SystemColors.HighlightText          ' Finish the effect by painting 
                ctrl.ForeColor = SystemColors.Highlight ' the control with it's final
            Case False                                              ' look, depending on whether
                ctrl.BackColor = SystemColors.Highlight               ' we're fading in or out.
                ctrl.ForeColor = SystemColors.HighlightText
        End Select
    End Sub
#End Region
End Class