frmlogin.vb

The Management Information System of Library using .NET

Public Class frmLogin
    Inherits System.Windows.Forms.Form
    Public IsLogSuccess As Boolean
    Public strLogUser As String
#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写 dispose 以清理组件列表。
    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

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents btnLogin As System.Windows.Forms.Button
    Friend WithEvents btnExit As System.Windows.Forms.Button
    Friend WithEvents Panel1 As System.Windows.Forms.Panel
    Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents txtUser As System.Windows.Forms.TextBox
    Friend WithEvents txtPwd As System.Windows.Forms.TextBox
    Friend WithEvents Label4 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(frmLogin))
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.txtUser = New System.Windows.Forms.TextBox
        Me.txtPwd = New System.Windows.Forms.TextBox
        Me.btnLogin = New System.Windows.Forms.Button
        Me.btnExit = New System.Windows.Forms.Button
        Me.Panel1 = New System.Windows.Forms.Panel
        Me.Label3 = New System.Windows.Forms.Label
        Me.PictureBox1 = New System.Windows.Forms.PictureBox
        Me.Label4 = New System.Windows.Forms.Label
        Me.Panel1.SuspendLayout()
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.AutoSize = True
        Me.Label1.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Label1.Location = New System.Drawing.Point(53, 98)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(48, 17)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "用户名:"
        '
        'Label2
        '
        Me.Label2.AutoSize = True
        Me.Label2.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Label2.Location = New System.Drawing.Point(53, 138)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(35, 17)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "密码:"
        '
        'txtUser
        '
        Me.txtUser.BackColor = System.Drawing.Color.White
        Me.txtUser.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.txtUser.Location = New System.Drawing.Point(128, 96)
        Me.txtUser.Name = "txtUser"
        Me.txtUser.Size = New System.Drawing.Size(176, 21)
        Me.txtUser.TabIndex = 0
        Me.txtUser.Text = ""
        '
        'txtPwd
        '
        Me.txtPwd.BackColor = System.Drawing.Color.White
        Me.txtPwd.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.txtPwd.Location = New System.Drawing.Point(128, 136)
        Me.txtPwd.Name = "txtPwd"
        Me.txtPwd.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.txtPwd.Size = New System.Drawing.Size(176, 21)
        Me.txtPwd.TabIndex = 1
        Me.txtPwd.Text = ""
        '
        'btnLogin
        '
        Me.btnLogin.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.btnLogin.Location = New System.Drawing.Point(103, 168)
        Me.btnLogin.Name = "btnLogin"
        Me.btnLogin.Size = New System.Drawing.Size(52, 24)
        Me.btnLogin.TabIndex = 2
        Me.btnLogin.Text = "登陆"
        '
        'btnExit
        '
        Me.btnExit.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.btnExit.Location = New System.Drawing.Point(199, 168)
        Me.btnExit.Name = "btnExit"
        Me.btnExit.Size = New System.Drawing.Size(52, 24)
        Me.btnExit.TabIndex = 3
        Me.btnExit.Text = "退出"
        '
        'Panel1
        '
        Me.Panel1.Controls.Add(Me.Label3)
        Me.Panel1.Controls.Add(Me.PictureBox1)
        Me.Panel1.Controls.Add(Me.Label4)
        Me.Panel1.Dock = System.Windows.Forms.DockStyle.Top
        Me.Panel1.Location = New System.Drawing.Point(0, 0)
        Me.Panel1.Name = "Panel1"
        Me.Panel1.Size = New System.Drawing.Size(354, 80)
        Me.Panel1.TabIndex = 4
        '
        'Label3
        '
        Me.Label3.AutoSize = True
        Me.Label3.BackColor = System.Drawing.Color.White
        Me.Label3.Font = New System.Drawing.Font("幼圆", 14.25!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label3.Location = New System.Drawing.Point(88, 16)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(233, 24)
        Me.Label3.TabIndex = 1
        Me.Label3.Text = "图书馆管理信息系统 V1.0"
        Me.Label3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'PictureBox1
        '
        Me.PictureBox1.Image = CType(resources.GetObject("PictureBox1.Image"), System.Drawing.Image)
        Me.PictureBox1.Location = New System.Drawing.Point(16, 16)
        Me.PictureBox1.Name = "PictureBox1"
        Me.PictureBox1.Size = New System.Drawing.Size(48, 48)
        Me.PictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.PictureBox1.TabIndex = 0
        Me.PictureBox1.TabStop = False
        '
        'Label4
        '
        Me.Label4.AutoSize = True
        Me.Label4.BackColor = System.Drawing.Color.White
        Me.Label4.Font = New System.Drawing.Font("宋体", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label4.Location = New System.Drawing.Point(88, 48)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(190, 17)
        Me.Label4.TabIndex = 5
        Me.Label4.Text = "中国矿业大学 翟靖轩 设计(2004)"
        Me.Label4.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'frmLogin
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(354, 199)
        Me.Controls.Add(Me.Panel1)
        Me.Controls.Add(Me.btnExit)
        Me.Controls.Add(Me.btnLogin)
        Me.Controls.Add(Me.txtPwd)
        Me.Controls.Add(Me.txtUser)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog
        Me.Icon = CType(resources.GetObject("$this.Icon"), System.Drawing.Icon)
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "frmLogin"
        Me.ShowInTaskbar = False
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "登陆"
        Me.Panel1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub frmLogin_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        IsLogSuccess = False
        ' Me.btnLogin.PerformClick()
    End Sub

    Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
        'IsLogSuccess = True

        IsLogSuccess = validateLogin(Me.txtUser.Text.Trim, Me.txtPwd.Text.Trim)
        If IsLogSuccess = True Then
            strLogUser = Me.txtUser.Text.Trim
            Me.Close()
        Else
            MessageBox.Show("密码错误!", "请重新登陆!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
        End If

    End Sub

    Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
        Me.Close()
    End Sub

    Private Sub Panel1_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Panel1.Paint
        Dim grbrush As Drawing2D.LinearGradientBrush
        grbrush = New Drawing2D.LinearGradientBrush(New Point(0, 0), _
         New Point(sender.Width, sender.Height), Color.DarkSlateGray, Color.White)
        sender.CreateGraphics.FillRectangle(grbrush, New Rectangle(0, 0, sender.Width, sender.Height))
    End Sub
End Class