form1.vb

很耗用的一个简单程序hehaoyong

Public Class Form1
    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 GroupBox1 As System.Windows.Forms.GroupBox
    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 TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents ComboBox1 As System.Windows.Forms.ComboBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.GroupBox1 = New System.Windows.Forms.GroupBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label3 = New System.Windows.Forms.Label
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.ComboBox1 = New System.Windows.Forms.ComboBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.GroupBox1.SuspendLayout()
        Me.SuspendLayout()
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.Add(Me.Button2)
        Me.GroupBox1.Controls.Add(Me.Button1)
        Me.GroupBox1.Controls.Add(Me.ComboBox1)
        Me.GroupBox1.Controls.Add(Me.TextBox2)
        Me.GroupBox1.Controls.Add(Me.TextBox1)
        Me.GroupBox1.Controls.Add(Me.Label3)
        Me.GroupBox1.Controls.Add(Me.Label2)
        Me.GroupBox1.Controls.Add(Me.Label1)
        Me.GroupBox1.Location = New System.Drawing.Point(8, 8)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(304, 256)
        Me.GroupBox1.TabIndex = 0
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "用户登录"
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(16, 32)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(76, 23)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "用 户 名："
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(16, 88)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(80, 24)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "密    码："
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(16, 144)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(72, 24)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "用户类型："
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(144, 32)
        Me.TextBox1.MaxLength = 10
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(112, 21)
        Me.TextBox1.TabIndex = 3
        Me.TextBox1.Text = ""
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(144, 88)
        Me.TextBox2.MaxLength = 15
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.TextBox2.Size = New System.Drawing.Size(112, 21)
        Me.TextBox2.TabIndex = 4
        Me.TextBox2.Text = ""
        '
        'ComboBox1
        '
        Me.ComboBox1.Items.AddRange(New Object() {"教师", "学生"})
        Me.ComboBox1.Location = New System.Drawing.Point(144, 136)
        Me.ComboBox1.Name = "ComboBox1"
        Me.ComboBox1.Size = New System.Drawing.Size(112, 20)
        Me.ComboBox1.TabIndex = 5
        Me.ComboBox1.Text = "请选择"
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(144, 200)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(40, 24)
        Me.Button1.TabIndex = 6
        Me.Button1.Text = "登录"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(216, 200)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(40, 24)
        Me.Button2.TabIndex = 7
        Me.Button2.Text = "重填"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(320, 270)
        Me.Controls.Add(Me.GroupBox1)
        Me.Name = "Form1"
        Me.Text = "用户登录"
        Me.GroupBox1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If TextBox1.Text <> "zs" And TextBox1.Text <> "ls" Then
            MessageBox.Show("无此用户", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error)
        Else
            If TextBox1.Text = "zs" Then
                If TextBox2.Text = "123" Then
                    Select Case ComboBox1.SelectedItem
                        Case "请选择"
                            MessageBox.Show("请您选择用户类型", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error)
                        Case "学生"
                            MessageBox.Show("恭喜您, 登录成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
                        Case "教师"
                            MessageBox.Show("用户类型不符", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error)

                    End Select
                Else
                    MessageBox.Show("密码不正确", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error)
                End If
            End If
            If TextBox1.Text = "ls" Then

                If TextBox2.Text = "456" Then
                    Select Case ComboBox1.SelectedItem
                    Case "请选择"
                            MessageBox.Show("请您选择用户类型", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error)
                        Case "学生"
                            MessageBox.Show("用户类型不符", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error)
                        Case "教师"
                            MessageBox.Show("恭喜您, 登录成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)

                    End Select
                Else
                    MessageBox.Show("密码不正确", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error)
                End If

            End If
        End If

    End Sub

    Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged

    End Sub

    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        ComboBox1.Text = "请选择"
        TextBox1.Clear()
        TextBox2.Clear()

    End Sub

    Private Sub GroupBox1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GroupBox1.Enter

    End Sub
End Class