Hello radzmar
Thank you for you soon reply!
I learned about the function exportData(), and my form is not certified, so I use exportData("",0) to export xml file. After I click the export button, it will jump out a window to ask for selecting the path, where users want to save the xml file, and, in this window, LiveCycle will fill xml file name automatically by "xxxx_data" (xxxx is the pdf form name). I just wonder if I can avoid "_data" ?
Do you have any idea? Thanks!