As String = System.BitConverter.ToString(mdByte)
 Dim mdString As String = (New ASCIIEncoding).GetString(mdByte)
Return mdString
 End Function
  Public Function validate()Function validate() As Boolean
''''连接到Users表
Dim myConnection As New SqlConnection("server=localhost;database=TEST;Trusted_Connection=yes;user id=sa;password=;")
Dim selectAdapter As New SqlDataAdapter("select * from Users where UserName=''''" + username + "''''" + "and Password=''''" + convertMD5(userpwd) + "''''", myConnection)
Dim ds As New DataSet
Try
selectAdapter.Fill(ds, "Users")
If (ds.Tables(0).Rows.Count > 0) Then
Return True
Else
Return False
End If
Catch ep As SqlException
MsgBox("连接数据库出错")
Catch pp As Exception
MsgBox("Oh，发生了不可预料的事情在你身边，你死定了。退出吧。")
End Try
End Function
#Region " 组件设计器生成的代码 "
Public Sub New()Sub New(ByVal Container As System.ComponentModel.IContainer)
MyClass.New()
''''Windows.Forms 类撰写设计器支持所必需的
Container.Add(Me)
End Sub
Public Sub New()Sub New()
MyBase.New()
''''该调用是组件设计器所必需的。
InitializeComponent()
''''在 InitializeComponent() 调用之后添加任何初始化
End Sub
''''组件重写 dispose 以清理组件列表。
Protected Overloads Overrides Sub Dispose()Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
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