水晶报表问题： 如何自定义报表查看器（Crystal Report Windows Forms Viewer）的导出格式和默认文件名？？

[shipL]

报表查看器导航栏中的“Export”按钮可以将报表文件导出为doc、xls、html等文件，想知道可否对该按钮的导出功能自定义设置。就是想点击“导出”按钮后，可以自定义默认保存文件格式和默认文件名。（例如：默认文件格式为doc格式，文件名为outfile.doc)
应该怎样实现谢谢各位GGJJ帮帮忙！！！小弟万分感激！！！

[shipL]

怎么没人回答呢？难道是太简单了不屑回答，还是太复杂了不好回答？
期待中！！！！

[cjx020]

'Dim logoInfo As New TableLogOnInfo
'Dim tb As CrystalDecisions.CrystalReports.Engine.Table
'For Each tb In Cry.Database.Tables
' logoInfo = tb.LogOnInfo
' logoInfo.ConnectionInfo.ServerName = "tyjf"
' logoInfo.ConnectionInfo.UserID = "sa"
' logoInfo.ConnectionInfo.Password = ""
' tb.ApplyLogOnInfo(logoInfo)
'Next
Dim MbLj, SpLj As String '
Dim diskopts As New CrystalDecisions.Shared.DiskFileDestinationOptions '
Cry.ExportOptions.ExportDestinationType = CrystalDecisions.[Shared].ExportDestinationType.DiskFile
Cry.ExportOptions.ExportFormatType = CrystalDecisions.[Shared].ExportFormatType.WordForWindows //Word
MbLj = Request.PhysicalApplicationPath & "UpLoad\" '模板路径
diskopts.DiskFileName = SpLj

Cry.ExportOptions.DestinationOptions = diskopts
Cry.Export()