adlog.vb

humar resourse management

' Human Resources Management System (HRMS)
'
' Programmed by: Nura Tijjani Abubakar ([e-mail])
' Submitted to: Mr. Ravindran Kanapathy
'
' Oxford Brookes University (OBU)
' Final Year Project (November, 2007)

Imports System.Data.OleDb
Public Class adLog
    Inherits System.Windows.Forms.Form



#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents OleDbDataAdapter1 As System.Data.OleDb.OleDbDataAdapter
    Friend WithEvents OleDbSelectCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents OleDbInsertCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents OleDbUpdateCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents OleDbDeleteCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents OleDbConnection1 As System.Data.OleDb.OleDbConnection
    Friend WithEvents OleDbCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Public WithEvents Button1 As System.Windows.Forms.Button
    Public WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(adLog))
        Me.OleDbDataAdapter1 = New System.Data.OleDb.OleDbDataAdapter
        Me.OleDbDeleteCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbConnection1 = New System.Data.OleDb.OleDbConnection
        Me.OleDbInsertCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbSelectCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbUpdateCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbCommand1 = New System.Data.OleDb.OleDbCommand
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'OleDbDataAdapter1
        '
        Me.OleDbDataAdapter1.DeleteCommand = Me.OleDbDeleteCommand1
        Me.OleDbDataAdapter1.InsertCommand = Me.OleDbInsertCommand1
        Me.OleDbDataAdapter1.SelectCommand = Me.OleDbSelectCommand1
        Me.OleDbDataAdapter1.TableMappings.AddRange(New System.Data.Common.DataTableMapping() {New System.Data.Common.DataTableMapping("Table", "tblSysLogin", New System.Data.Common.DataColumnMapping() {New System.Data.Common.DataColumnMapping("usr_name", "usr_name"), New System.Data.Common.DataColumnMapping("usr_pass", "usr_pass")})})
        Me.OleDbDataAdapter1.UpdateCommand = Me.OleDbUpdateCommand1
        '
        'OleDbDeleteCommand1
        '
        Me.OleDbDeleteCommand1.CommandText = "DELETE FROM tblSysLogin WHERE (usr_name = ?) AND (usr_pass = ? OR ? IS NULL AND u" & _
        "sr_pass IS NULL)"
        Me.OleDbDeleteCommand1.Connection = Me.OleDbConnection1
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_usr_name", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "usr_name", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_usr_pass", System.Data.OleDb.OleDbType.VarWChar, 20, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "usr_pass", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_usr_pass1", System.Data.OleDb.OleDbType.VarWChar, 20, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "usr_pass", System.Data.DataRowVersion.Original, Nothing))
        '
        'OleDbConnection1
        '
        Me.OleDbConnection1.ConnectionString = "Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Registry Path=;Jet OLEDB:Database L" & _
        "ocking Mode=1;Data Source=""C:\Program Files\HRMS\bin\EIS.mdb"";Jet OLEDB:Engine T" & _
        "ype=5;Provider=""Microsoft.Jet.OLEDB.4.0"";Jet OLEDB:System database=;Jet OLEDB:SF" & _
        "P=False;persist security info=False;Extended Properties=;Mode=Share Deny None;Je" & _
        "t OLEDB:Encrypt Database=False;Jet OLEDB:Create System Database=False;Jet OLEDB:" & _
        "Don't Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=Fals" & _
        "e;User ID=Admin;Jet OLEDB:Global Bulk Transactions=1"
        '
        'OleDbInsertCommand1
        '
        Me.OleDbInsertCommand1.CommandText = "INSERT INTO tblSysLogin(usr_name, usr_pass) VALUES (?, ?)"
        Me.OleDbInsertCommand1.Connection = Me.OleDbConnection1
        Me.OleDbInsertCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("usr_name", System.Data.OleDb.OleDbType.VarWChar, 15, "usr_name"))
        Me.OleDbInsertCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("usr_pass", System.Data.OleDb.OleDbType.VarWChar, 20, "usr_pass"))
        '
        'OleDbSelectCommand1
        '
        Me.OleDbSelectCommand1.CommandText = "SELECT usr_name, usr_pass FROM tblSysLogin"
        Me.OleDbSelectCommand1.Connection = Me.OleDbConnection1
        '
        'OleDbUpdateCommand1
        '
        Me.OleDbUpdateCommand1.CommandText = "UPDATE tblSysLogin SET usr_name = ?, usr_pass = ? WHERE (usr_name = ?) AND (usr_p" & _
        "ass = ? OR ? IS NULL AND usr_pass IS NULL)"
        Me.OleDbUpdateCommand1.Connection = Me.OleDbConnection1
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("usr_name", System.Data.OleDb.OleDbType.VarWChar, 15, "usr_name"))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("usr_pass", System.Data.OleDb.OleDbType.VarWChar, 20, "usr_pass"))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_usr_name", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "usr_name", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_usr_pass", System.Data.OleDb.OleDbType.VarWChar, 20, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "usr_pass", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_usr_pass1", System.Data.OleDb.OleDbType.VarWChar, 20, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "usr_pass", System.Data.DataRowVersion.Original, Nothing))
        '
        'TextBox1
        '
        Me.TextBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.TextBox1.Location = New System.Drawing.Point(96, 16)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(104, 20)
        Me.TextBox1.TabIndex = 1
        Me.TextBox1.Text = ""
        '
        'TextBox2
        '
        Me.TextBox2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.TextBox2.Location = New System.Drawing.Point(96, 40)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.TextBox2.Size = New System.Drawing.Size(104, 20)
        Me.TextBox2.TabIndex = 2
        Me.TextBox2.Text = ""
        '
        'Button1
        '
        Me.Button1.BackColor = System.Drawing.Color.Chocolate
        Me.Button1.Cursor = System.Windows.Forms.Cursors.Default
        Me.Button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button1.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button1.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Button1.Location = New System.Drawing.Point(37, 72)
        Me.Button1.Name = "Button1"
        Me.Button1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Button1.Size = New System.Drawing.Size(64, 23)
        Me.Button1.TabIndex = 3
        Me.Button1.Text = "&LogIn"
        '
        'Button2
        '
        Me.Button2.BackColor = System.Drawing.Color.Chocolate
        Me.Button2.Cursor = System.Windows.Forms.Cursors.Default
        Me.Button2.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button2.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button2.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Button2.Location = New System.Drawing.Point(125, 72)
        Me.Button2.Name = "Button2"
        Me.Button2.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Button2.Size = New System.Drawing.Size(64, 23)
        Me.Button2.TabIndex = 4
        Me.Button2.Text = "&Cancel"
        '
        'Label1
        '
        Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label1.Location = New System.Drawing.Point(27, 16)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(64, 23)
        Me.Label1.TabIndex = 5
        Me.Label1.Text = "UserName:"
        Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label2
        '
        Me.Label2.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label2.Location = New System.Drawing.Point(27, 40)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(64, 23)
        Me.Label2.TabIndex = 5
        Me.Label2.Text = "Password:"
        Me.Label2.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'adLog
        '
        Me.AcceptButton = Me.Button1
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(226, 111)
        Me.ControlBox = False
        Me.Controls.Add(Me.TextBox2)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Label2)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow
        Me.Icon = CType(resources.GetObject("$this.Icon"), System.Drawing.Icon)
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "adLog"
        Me.ShowInTaskbar = False
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "                  HRMS: System Admin"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Public sConn As OleDbConnection
    Dim lDS As DataSet = New DataSet
    Dim lDA As OleDbDataAdapter = New OleDbDataAdapter
    Dim lDR As DataRow
    Private Sub adLog_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        sConn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Application.StartupPath & "\EIS.mdb;Persist Security Info=False")
    End Sub


    Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        sConn.Open()
        lDA.SelectCommand = New OleDbCommand("SELECT * FROM tblSysLogin WHERE usr_name='" & TextBox1.Text.ToString & "' and usr_pass='" & TextBox2.Text & "'", sConn)
        lDS.Clear()
        lDA.Fill(lDS)

        If lDS.Tables(0).Rows.Count > 0 Then
            Dim fx As New frmAddAdmin
            bExitApplication = False
            Me.Close()
            fx.Show()
        Else
            MsgBox("Sorry, you do NOT have Administrative permission. Please contact the System Administrator.", MsgBoxStyle.Exclamation + MsgBoxStyle.OKOnly, "Access Denied")
            TextBox1.Focus()
        End If

        lDR = Nothing
        lDS.Dispose()
        lDA.Dispose()
        sConn.Close()
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Me.Close()
    End Sub
End Class