frmmodifyuserpassword.vb

是一套开发的VB的学生成绩管理系统,希望有需要的人去参考

Imports System.Data.SqlClient
Public Class frmmodifyuserpassword
    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 Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents txtusername As System.Windows.Forms.TextBox
    Friend WithEvents txtuserpassword As System.Windows.Forms.TextBox
    Friend WithEvents txtnewpassword As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label3 = New System.Windows.Forms.Label
        Me.txtusername = New System.Windows.Forms.TextBox
        Me.txtuserpassword = New System.Windows.Forms.TextBox
        Me.txtnewpassword = New System.Windows.Forms.TextBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(24, 32)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(56, 23)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "用户名："
        Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(16, 80)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(64, 23)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "密码："
        Me.Label2.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(24, 120)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(56, 23)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "新密码："
        Me.Label3.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'txtusername
        '
        Me.txtusername.Location = New System.Drawing.Point(96, 32)
        Me.txtusername.Name = "txtusername"
        Me.txtusername.TabIndex = 3
        Me.txtusername.Text = ""
        '
        'txtuserpassword
        '
        Me.txtuserpassword.Location = New System.Drawing.Point(96, 80)
        Me.txtuserpassword.Name = "txtuserpassword"
        Me.txtuserpassword.TabIndex = 4
        Me.txtuserpassword.Text = ""
        '
        'txtnewpassword
        '
        Me.txtnewpassword.Location = New System.Drawing.Point(96, 120)
        Me.txtnewpassword.Name = "txtnewpassword"
        Me.txtnewpassword.TabIndex = 5
        Me.txtnewpassword.Text = ""
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(32, 184)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 6
        Me.Button1.Text = "确定"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(168, 184)
        Me.Button2.Name = "Button2"
        Me.Button2.TabIndex = 7
        Me.Button2.Text = "取消"
        '
        'frmmodifyuserpassword
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.txtnewpassword)
        Me.Controls.Add(Me.txtuserpassword)
        Me.Controls.Add(Me.txtusername)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Name = "frmmodifyuserpassword"
        Me.Text = "frmmodifyuserpassword"
        Me.ResumeLayout(False)

    End Sub

#End Region


    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim tablename As String = "userinfo"
        searchsql = "select userID,password from UserInfo where userID ='" & txtusername.Text & "'"
        MsgBox(searchsql)
        Module1.executesql(searchsql, tablename)
        Try
            If Module1.myrow.Item(1).trim() = txtuserpassword.Text.Trim Then
                Module1.myrow.Item(1) = Trim(txtnewpassword.Text)
                Module1.mytable.GetChanges()
                Module1.sqlcmd = New SqlCommandBuilder(Module1.sqladapter)
                Module1.sqladapter.Update(Module1.ds, tablename)
                MsgBox("密码修改成功！", vbOKOnly + vbExclamation, "警告")
                Me.Hide()
            Else
            End If
        Catch
            MsgBox("没有该用户", vbOKOnly + vbExclamation, "警告")
        End Try

    End Sub

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