frmlogin.vb

本文件为进销存管理系统的代码 在VB的环境下运行 用比较简单的结构完成的

Imports System.Data.SqlClient
Public Class frmLogin
    Inherits System.Windows.Forms.Form

#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 Label3 As System.Windows.Forms.Label
    Friend WithEvents cmbUserName As System.Windows.Forms.ComboBox
    Friend WithEvents txtPwd As System.Windows.Forms.TextBox
    Friend WithEvents cmdOK As System.Windows.Forms.Button
    Friend WithEvents cmdCancel As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.cmbUserName = New System.Windows.Forms.ComboBox
        Me.txtPwd = New System.Windows.Forms.TextBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.cmdOK = New System.Windows.Forms.Button
        Me.cmdCancel = New System.Windows.Forms.Button
        Me.Label3 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'cmbUserName
        '
        Me.cmbUserName.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList
        Me.cmbUserName.Location = New System.Drawing.Point(96, 72)
        Me.cmbUserName.Name = "cmbUserName"
        Me.cmbUserName.Size = New System.Drawing.Size(121, 20)
        Me.cmbUserName.TabIndex = 0
        '
        'txtPwd
        '
        Me.txtPwd.Location = New System.Drawing.Point(96, 112)
        Me.txtPwd.Name = "txtPwd"
        Me.txtPwd.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.txtPwd.Size = New System.Drawing.Size(120, 21)
        Me.txtPwd.TabIndex = 1
        Me.txtPwd.Text = ""
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(24, 80)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(56, 16)
        Me.Label1.TabIndex = 2
        Me.Label1.Text = "用户名："
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(24, 112)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(48, 16)
        Me.Label2.TabIndex = 3
        Me.Label2.Text = "密码："
        '
        'cmdOK
        '
        Me.cmdOK.Location = New System.Drawing.Point(32, 152)
        Me.cmdOK.Name = "cmdOK"
        Me.cmdOK.TabIndex = 4
        Me.cmdOK.Text = "登 陆"
        '
        'cmdCancel
        '
        Me.cmdCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel
        Me.cmdCancel.Location = New System.Drawing.Point(136, 152)
        Me.cmdCancel.Name = "cmdCancel"
        Me.cmdCancel.TabIndex = 5
        Me.cmdCancel.Text = "取 消"
        '
        'Label3
        '
        Me.Label3.Font = New System.Drawing.Font("宋体", 15.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label3.ForeColor = System.Drawing.Color.Blue
        Me.Label3.Location = New System.Drawing.Point(48, 24)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(152, 23)
        Me.Label3.TabIndex = 6
        Me.Label3.Text = "进销存管理系统"
        '
        'frmLogin
        '
        Me.AcceptButton = Me.cmdOK
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.CancelButton = Me.cmdCancel
        Me.ClientSize = New System.Drawing.Size(256, 197)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.cmdCancel)
        Me.Controls.Add(Me.cmdOK)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.txtPwd)
        Me.Controls.Add(Me.cmbUserName)
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "frmLogin"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "登陆系统"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdOK.Click
        pass = Users.CheckUsers(cmbUserName.Text.Trim, txtPwd.Text.Trim)
        If pass = True Then
            AdminName = cmbUserName.Text.Trim
            PassWord = txtPwd.Text.Trim
            Me.Close()
        Else
            MessageBox.Show("密码错误", "错误")
            txtPwd.SelectAll()
            txtPwd.Focus()
            Exit Sub
        End If
    End Sub

    Private Sub frmLogin_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        storename = "ShowAdmin"
        Users.ShowAdmin(cmbUserName)
        cmbUserName.Text = cmbUserName.Items.Item(0)
    End Sub

    Private Sub cmdCancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdCancel.Click
        End
    End Sub
End Class