VB.NET DMO SQL SERVER备份恢复

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

'窗体重写处置以清理组件列表。
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 ProgressBar1 As System.Windows.Forms.ProgressBar
Friend WithEvents Button1 As System.Windows.Forms.Button
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.ProgressBar1 = New System.Windows.Forms.ProgressBar()
Me.Button1 = New System.Windows.Forms.Button()
Me.SuspendLayout()
'
'ProgressBar1
'
Me.ProgressBar1.Anchor = ((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
Or System.Windows.Forms.AnchorStyles.Right)
Me.ProgressBar1.Location = New System.Drawing.Point(8, 8)
Me.ProgressBar1.Name = "ProgressBar1"
Me.ProgressBar1.Size = New System.Drawing.Size(384, 23)
Me.ProgressBar1.TabIndex = 0
'
'Button1
'
Me.Button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat
Me.Button1.Location = New System.Drawing.Point(160, 40)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(75, 24)
Me.Button1.TabIndex = 1
Me.Button1.Text = "备份"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
Me.BackColor = System.Drawing.Color.CornflowerBlue
Me.ClientSize = New System.Drawing.Size(400, 74)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.ProgressBar1})
Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow
Me.MaximizeBox = False
Me.MinimizeBox = False
Me.Name = "Form1"
Me.ShowInTaskbar = False
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
Me.ResumeLayout(False)

End Sub

#End Region

'此处由于嫌麻烦未按属性来处理……应改进
Public sa As String
Public passerd As String
Public file As String
Public database As String
Public sqlserver As String

Public flag As Boolean = True

Private WithEvents PBackup As New SQLDMO.Backup()
Private WithEvents oRestore As New SQLDMO.Restore()

' Property SQLServerName() As String
' Get
' Return sqlserver
' End Get
' Set(ByVal Value As String)
' sqlserver = Value
' End Set
' End Property

'备份
Public Function BACKUP(ByVal DATABASENAME As String, ByVal SQLServe As String, ByVal ROLE As String, ByVal PASSWORD As String, ByVal backfilename As String)

Me.ProgressBar1.Value = 0
Me.BackColor = System.Drawing.Color.RoyalBlue
Me.Button1.Text = "备份"
Me.Show()
On Error GoTo ErrHandler

Dim SQLSER As New SQLDMO.SQLServer

SQLSER.Connect(SQLServe, ROLE, PASSWORD)
PBackup.Database = DATABASENAME

System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.WaitCursor

PBackup.Files = backfilename
PBackup.SQLBackup(SQLSER)

SQLSER.DisConnect()
SQLSER = Nothing
System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.Default
Exit Function

ErrHandler:

MsgBox("备份失败，请检查源数据库是否存在、角色权限是否足够或SQL SERVER服务是否被打开" & Chr(13) & "信息：" & Err.Description)
Resume Next
End Function

'恢复
Public Function RSTORE(ByVal DATABASENAME As String, ByVal SQLServe As String, ByVal ROLE As String, ByVal PASSWORD As String, ByVal restfilename As String)

Me.ProgressBar1.Value = 0

Me.BackColor = System.Drawing.Color.OliveDrab
Me.Button1.Text = "恢复"
Me.Show()
On Error GoTo ErrHandler

Dim SQLSER As New SQLDMO.SQLServer

SQLSER.Connect(SQLServe, ROLE, PASSWORD)

oRestore.Database = DATABASENAME
oRestore.Files = restfilename

System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.WaitCursor
oRestore.SQLRestore(SQLSER)
System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.Default

SQLSER.DisConnect()
SQLSER = Nothing

Exit Function

ErrHandler:
MsgBox("恢复失败，请检查恢复数据库是否存在、角色权限是否足够或SQL SERVER服务是否被打开" & Chr(13) & "信息：" & Err.Description)
Resume Next
End Function

Private Sub PBackup_Complete(ByVal Message As String) Handles PBackup.Complete

Me.ProgressBar1.Value = 100
PBackup = Nothing
Me.oRestore = Nothing
Me.Close()

End Sub
Private Sub PBackup_PercentComplete(ByVal Message As String, ByVal Percent As Integer) Handles PBackup.PercentComplete
Me.BackColor = System.Drawing.Color.RoyalBlue

Me.ProgressBar1.Value = Percent
If Percent = 100 Then

Me.ProgressBar1.Value = 100
PBackup = Nothing
Me.oRestore = Nothing
Me.Close()

End If
End Sub
Private Sub oRestore_Complete(ByVal Message As String) Handles oRestore.Complete

Me.ProgressBar1.Value = 100
PBackup = Nothing
Me.oRestore = Nothing
Me.Close()
End Sub
Private Sub oRestore_PercentComplete(ByVal Message As String, ByVal Percent As Integer) Handles oRestore.PercentComplete
Me.BackColor = System.Drawing.Color.OliveDrab

Me.ProgressBar1.Value = Percent
If Percent = 100 Then

Me.ProgressBar1.Value = 100
PBackup = Nothing
Me.oRestore = Nothing
Me.Close()
End If
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If flag = True Then

Me.BACKUP(Me.database, Me.sqlserver, Me.sa, Me.passerd, Me.file)

Else
Me.RSTORE(Me.database, Me.sqlserver, Me.sa, Me.passerd, Me.file)

End If

End Sub

End Class