1 Imports System.Data.SqlClient
2 Public Class frmLogin
3 Dim frm As New frmMain
4
5 Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
6 If Len(Trim(UserID.Text)) = 0 Then
7 MessageBox.Show("Please enter user id", "", MessageBoxButtons.OK, MessageBoxIcon.Warning)
8 UserID.Focus()
9 Exit Sub
10 End If
11 If Len(Trim(Password.Text)) = 0 Then
12 MessageBox.Show("Please enter password", "", MessageBoxButtons.OK, MessageBoxIcon.Warning)
13 Password.Focus()
14 Exit Sub
15 End If
16 Try
17 con = New SqlConnection(cs)
18 con.Open()
19 cmd = con.CreateCommand()
20 cmd.CommandText = "SELECT RTRIM(UserID),RTRIM(Password) FROM Registration where UserID = @d1 and Password=@d2"
21 cmd.Parameters.AddWithValue("@d1", UserID.Text)
22 cmd.Parameters.AddWithValue("@d2", Encrypt(Password.Text))
23 rdr = cmd.ExecuteReader()
24 If rdr.Read() Then
25 con = New SqlConnection(cs)
26 con.Open()
27 cmd = con.CreateCommand()
28 cmd.CommandText = "SELECT usertype FROM Registration where UserID=@d3 and Password=@d4"
29 cmd.Parameters.AddWithValue("@d3", UserID.Text)
30 cmd.Parameters.AddWithValue("@d4", Encrypt(Password.Text))
31 rdr = cmd.ExecuteReader()
32 If rdr.Read() Then
33 UserType.Text = rdr.GetValue(0).ToString.Trim
34 End If
35 If (rdr IsNot Nothing) Then
36 rdr.Close()
37 End If
38 If con.State = ConnectionState.Open Then
39 con.Close()
40 End If
41
42 If UserType.Text = "Admin" Then
43 frm.lblUser.Text = UserID.Text
44 frm.lblUserType.Text = UserType.Text
45 Dim st As String = "Successfully logged in"
46 LogFunc(UserID.Text, st)
47 Me.Hide()
48 frm.Show()
49 End If
50
51 Else
52 MsgBox("Login is Failed...Try again !", MsgBoxStyle.Critical, "Login Denied")
53 UserID.Text = ""
54 Password.Text = ""
55 UserID.Focus()
56 End If
57 cmd.Dispose()
58 con.Close()
59 Catch ex As Exception
60 MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
61 End Try
62 End Sub
63
64 Private Sub Cancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel.Click
65 End
66 End Sub
67
68 Private Sub LinkLabel2_LinkClicked(sender As System.Object, e As System.Windows.Forms.LinkLabelLinkClickedEventArgs) Handles LinkLabel2.LinkClicked
69 Me.Hide()
70 frmChangePassword.Show()
71 frmChangePassword.UserID.Text = ""
72 frmChangePassword.OldPassword.Text = ""
73 frmChangePassword.NewPassword.Text = ""
74 frmChangePassword.ConfirmPassword.Text = ""
75 frmChangePassword.UserID.Focus()
76 End Sub
77
78 Private Sub LoginForm1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
79
80 End Sub
81 End Class
