ASP.NET项目中的MessageBox类：快速弹框提示

''' <summary>
''' MessageBox is used to alert the system message. 
''' </summary>
''' <Author>Kate</Author>
''' <CreateDate>2010.03.26.</CreateDate>
Public Class MessageBox
    ''' <summary> 
    ''' Pop a dialog box to show a prompting message 
    ''' </summary> 
    ''' <param name="page">Current page pointer, usually is Me.</param> 
    ''' <param name="msg">prompting message</param> 
    Public Shared Sub Show(ByVal page As System.Web.UI.Page, ByVal msg As String)
        page.ClientScript.RegisterStartupScript(page.[GetType](), "message", "<script language='javascript' defer>alert('" & msg.ToString() & "');</script>")
    End Sub

    ''' <summary> 
    ''' Pop a dialog box to comfirm a prompting message 
    ''' </summary> 
    Public Shared Sub ShowConfirm(ByVal Control As System.Web.UI.WebControls.WebControl, ByVal msg As String)
        Control.Attributes.Add("onclick", "return confirm('" & msg & "');")
    End Sub

    ''' <summary> 
    ''' Show the dialog message in the top level,and redirect the other page.
    ''' </summary> 
    ''' <param name="page">Current page pointer, usually is Me.</param> 
    ''' <param name="msg">prompting message</param> 
    ''' <param name="url">the target URL</param> 
    Public Shared Sub ShowAndRedirect(ByVal page As System.Web.UI.Page, ByVal msg As String, ByVal url As String)
        Dim Builder As New StringBuilder()