"redirect/work on same page" after response.binarywrite

the following code throws an excel file to the client....but after throwing the file...I would like to redirect to another page...which could not me done...
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Dim response As HttpResponse = pg.Response
response.ContentType = "application/ms-excel"
response.AddHeader("content-disposition", "attachment;filename=report.xls")
Dim SourceFile As System.IO.FileStream = New System.IO.FileStream(FN, IO.FileMode.Open)
Dim FileSize As Long = SourceFile.Length
Dim getContent(CType(FileSize, Integer)) As Byte
SourceFile.Read(getContent, 0, CType(SourceFile.Length, Integer))
SourceFile.Close()
response.BinaryWrite(getContent)