1. owc structure (on msdn)
The built-in documentation is generally used on the installation disk: \ Program Files \ common files \ microsoft shared \ Web Components \ 11 \ 2052. The owcvba11.chm in it is the VBA programming reference of owc.
Refer:
Owc11 generate pie chart
ASP. NET 2.0 makes statistical charts easy
Summary of using owc components in Asp.net 2.0
ASP. NET uses owc to generate statistical charts (code + comments)
Owc drawing-Microsoft Office chart component
Implementation of Dual-scale charts in owc
PS: The first Statistical Chart can be generated successfully. However, when you request to generate a Statistical Chart again, the server's Statistical Chart is generated successfully, but the client's Statistical Chart is not refreshed. Handle the following:
Showimage. imageurl = Savepath + " ? Temp = " + Datetime. Now. ticks. tostring ();
// Or
Showimage. imageurl = Savepath + " ? Temp = " + New Random (). nextdouble (). tostring ()
ADD? Then, the image will be refreshed with a random character to change the image address.