form7.vb

学生信息管理系统

Public Class Form7
    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 TextBox3 As System.Windows.Forms.TextBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form7))
        Me.GroupBox1 = New System.Windows.Forms.GroupBox
        Me.TextBox3 = New System.Windows.Forms.TextBox
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.Label3 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label1 = New System.Windows.Forms.Label
        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.TextBox3)
        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(16, 16)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(232, 184)
        Me.GroupBox1.TabIndex = 0
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "修改密码"
        '
        'TextBox3
        '
        Me.TextBox3.Location = New System.Drawing.Point(136, 128)
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.TextBox3.Size = New System.Drawing.Size(72, 21)
        Me.TextBox3.TabIndex = 5
        Me.TextBox3.Text = ""
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(136, 80)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.TextBox2.Size = New System.Drawing.Size(72, 21)
        Me.TextBox2.TabIndex = 4
        Me.TextBox2.Text = ""
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(136, 32)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.TextBox1.Size = New System.Drawing.Size(72, 21)
        Me.TextBox1.TabIndex = 3
        Me.TextBox1.Text = ""
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(24, 32)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(72, 16)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "输入旧密码:"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(24, 128)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(88, 24)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "确认新密码:"
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(24, 80)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(72, 24)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "输入新密码:"
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(272, 40)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(40, 40)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "提交"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(272, 144)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(40, 40)
        Me.Button2.TabIndex = 2
        Me.Button2.Text = "取消"
        Me.Button2.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Form7
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.BackgroundImage = CType(resources.GetObject("$this.BackgroundImage"), System.Drawing.Image)
        Me.ClientSize = New System.Drawing.Size(328, 230)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.GroupBox1)
        Me.Name = "Form7"
        Me.Text = "修改密码"
        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
        '修改密码
        Class1.ada.SelectCommand.CommandText = "select * from 用户 where 用户名='" & Class1.name & "' and 密码='" _
        & TextBox1.Text & "'"
        If Not Class1.ds.Tables("A") Is Nothing Then
            Class1.ds.Tables("A").Clear()
        End If
        Class1.ada.Fill(Class1.ds, "A")
        Dim rc As Integer = Class1.ds.Tables("A").Rows.Count
        If TextBox1.Text <> "" And TextBox2.Text <> "" And TextBox3.Text <> "" Then
            If rc <> 0 Then
                If TextBox2.Text = TextBox3.Text Then
                    Class1.ada.UpdateCommand.CommandText = "update 用户 set 用户.密码='" & TextBox2.Text & _
                    "' where 用户.用户名='" & Class1.name & "'"
                    Class1.con.Open()
                    Class1.ada.UpdateCommand.ExecuteNonQuery()
                    Class1.con.Close()
                    If Not Class1.ds.Tables("A") Is Nothing Then
                        Class1.ds.Tables("A").Clear()
                    End If
                    Class1.ada.Fill(Class1.ds, "A")
                    MsgBox("恭喜您修改成功!")
                    TextBox1.Clear()
                    TextBox2.Clear()
                    TextBox3.Clear()
                    Exit Sub
                Else
                    MsgBox("请确认您的新密码!")
                    TextBox1.Clear()
                    TextBox2.Clear()
                    TextBox3.Clear()
                End If
            Else
                MsgBox("您的密码错误,请重新输入!")
                TextBox1.Clear()
                TextBox2.Clear()
                TextBox3.Clear()
            End If
        Else
            MsgBox("请填写完整!")
            TextBox1.Clear()
            TextBox2.Clear()
            TextBox3.Clear()
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Clear()
        TextBox2.Clear()
        TextBox3.Clear()
        Me.Close()
    End Sub

    Private Sub Form7_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        If Not Class1.ds.Tables("A") Is Nothing Then
            Class1.ds.Tables("A").Clear()
        End If
        Class1.ada.SelectCommand.CommandText = "select * from 用户"
        Class1.ada.Fill(Class1.ds, "A")
    End Sub
End Class