Imports System.Data.SqlClient
Public Class frmModifyPassword
    Inherits System.Windows.Forms.Form
    Dim bnclose As Boolean
    Dim struserid As String
    Dim stroriginpwd As String


#Region " Windows 窗體設計器生成的代碼 "

    Public Sub New()
        MyBase.New()

        '該調用是 Windows 窗體設計器所必需的。
        InitializeComponent()

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

    End Sub

    '窗體重寫 dispose 以清理組件列表。
    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 窗體設計器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下過程是 Windows 窗體設計器所必需的
    '可以使用 Windows 窗體設計器修改此過程。
    '不要使用代碼編輯器修改它。
    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 txtpassword As System.Windows.Forms.TextBox
    Friend WithEvents txtnewpassword As System.Windows.Forms.TextBox
    Friend WithEvents txtconfirmpassword As System.Windows.Forms.TextBox
    Friend WithEvents btnok As System.Windows.Forms.Button
    Friend WithEvents btncancel As System.Windows.Forms.Button
    Friend WithEvents SqlConnection1 As System.Data.SqlClient.SqlConnection
    Friend WithEvents SqlCommand1 As System.Data.SqlClient.SqlCommand
    <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.txtpassword = New System.Windows.Forms.TextBox
        Me.txtnewpassword = New System.Windows.Forms.TextBox
        Me.txtconfirmpassword = New System.Windows.Forms.TextBox
        Me.btnok = New System.Windows.Forms.Button
        Me.btncancel = New System.Windows.Forms.Button
        Me.SqlConnection1 = New System.Data.SqlClient.SqlConnection
        Me.SqlCommand1 = New System.Data.SqlClient.SqlCommand
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(16, 16)
        Me.Label1.Name = "Label1"
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "輸入原密碼"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(16, 56)
        Me.Label2.Name = "Label2"
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "輸入新密碼"
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(16, 96)
        Me.Label3.Name = "Label3"
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "確認新密碼"
        '
        'txtpassword
        '
        Me.txtpassword.Location = New System.Drawing.Point(128, 16)
        Me.txtpassword.Name = "txtpassword"
        Me.txtpassword.TabIndex = 0
        Me.txtpassword.Text = ""
        '
        'txtnewpassword
        '
        Me.txtnewpassword.Location = New System.Drawing.Point(128, 56)
        Me.txtnewpassword.Name = "txtnewpassword"
        Me.txtnewpassword.TabIndex = 1
        Me.txtnewpassword.Text = ""
        '
        'txtconfirmpassword
        '
        Me.txtconfirmpassword.Location = New System.Drawing.Point(128, 104)
        Me.txtconfirmpassword.Name = "txtconfirmpassword"
        Me.txtconfirmpassword.TabIndex = 2
        Me.txtconfirmpassword.Text = ""
        '
        'btnok
        '
        Me.btnok.Location = New System.Drawing.Point(16, 160)
        Me.btnok.Name = "btnok"
        Me.btnok.TabIndex = 3
        Me.btnok.Text = "確定"
        '
        'btncancel
        '
        Me.btncancel.Location = New System.Drawing.Point(120, 160)
        Me.btncancel.Name = "btncancel"
        Me.btncancel.TabIndex = 4
        Me.btncancel.Text = "取消"
        '
        'SqlConnection1
        '
        Me.SqlConnection1.ConnectionString = "workstation id=4D3A93FBF8BE4E6;packet size=4096;user id=sa;data source=4D3A93FBF8" & _
        "BE4E6;persist security info=False;initial catalog=sqlqtgl"
        '
        'SqlCommand1
        '
        Me.SqlCommand1.Connection = Me.SqlConnection1
        '
        'frmModifyPassword
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(280, 214)
        Me.Controls.Add(Me.btncancel)
        Me.Controls.Add(Me.btnok)
        Me.Controls.Add(Me.txtconfirmpassword)
        Me.Controls.Add(Me.txtnewpassword)
        Me.Controls.Add(Me.txtpassword)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Name = "frmModifyPassword"
        Me.Text = "frmModifyPassword"
        Me.ResumeLayout(False)

    End Sub

#End Region
    Public Property myuser() As String
        Get
            myuser = struserid
        End Get
        Set(ByVal Value As String)
            struserid = Value
        End Set
    End Property

    Private Sub frmModifyPassword_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        bnclose = True
    End Sub

    Private Sub frmModifyPassword_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
        e.Cancel = Not bnclose

    End Sub

    Private Sub btnok_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnok.Click
        If Trim(txtnewpassword.Text) = "" Then
            MessageBox.Show("密碼不可空白!", "密碼格式錯誤", MessageBoxButtons.OK, MessageBoxIcon.Error)
            bnclose = False
            Exit Sub
        End If
        If txtnewpassword.Text <> txtconfirmpassword.Text Then
            MessageBox.Show("新密碼與確認密碼不一致，請重新輸入!", "密碼格式錯誤", MessageBoxButtons.OK, MessageBoxIcon.Error)
            Exit Sub
        End If
        SqlCommand1.CommandText = "select 密碼 from 用戶 where 用戶名='" & myuser & "'"
        SqlConnection1.Open()
        Try
            stroriginpwd = CType(SqlCommand1.ExecuteScalar, String)
            If Trim(stroriginpwd) = txtpassword.Text Then
                SqlCommand1.CommandText = "update 用戶 set 密碼=where 用戶名='" & myuser & "'"
                SqlCommand1.ExecuteNonQuery()
                bnclose = True
                MessageBox.Show("密碼修改完成!", "密碼修改", MessageBoxButtons.OK, MessageBoxIcon.Information)
            Else
                MessageBox.Show("輸入的原密碼錯誤!", "密碼格式錯誤", MessageBoxButtons.OK, MessageBoxIcon.Error)
                bnclose = False

            End If
        Finally
            SqlConnection1.Close()


        End Try
    End Sub

    Private Sub btncancel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btncancel.Click
        MessageBox.Show("密碼未修改!", "密碼未修改", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        bnclose = True
    End Sub
End Class