ASP中检查没有数据提交的页面Ⅱ

2000-08-27· 编译：甘冀平·YESKY

对于一个表单，使用PUT和GET方法

这同样适用于从带有查询字符串连接而来的页面，比如?ID=236454

< %

If Request.Querystring = "" Then

Response.Write("< p align=""center"" >< font face=""Arial"" >There Was An

Error.< br >" & vbCrLf)

Response.Write("No Data Was Posted.< /font >

" & vbCrLf)

Response.End

End If

% >

为了含概上面例子中的情况，要做下面的工作。尽管还有简单的方法，但是这个例子对于初学者，将是很好的学习基本原理的方法。

< %

IsData = 0

If Request.Form < > "" Then IsData = IsData + 1

If Request.Querystring < > "" Then IsData = IsData + 1

If IsData = 0 Then

Response.Write("< p align=""center"" >< font face=""Arial"" >There Was An Error.< br >" & vbCrLf)

Response.Write("No Data Was Posted.< /font >

" & vbCrLf)

Response.End

End If

% >

或者

< %

IsData = "No"

If Request.Form < > "" Then IsData = "Yes"

If Request.Querystring < > "" Then IsData = "Yes"

If IsData = "No" Then

Response.Write("< p align=""center"" >< font face=""Arial"" >There Was An Error.< br >" & vbCrLf)

Response.Write("No Data Was Posted.< /font >

" & vbCrLf)

Response.End

End If

%>