Code operation SharePoint document library (create and upload attachments)

Create an Excel file based on the infopath form and upload it to the specified document library in Sharepoint.

Create Document Library

 
Spsite site =NewSpsite (siteurl); splistitem item= Site. allwebs ["website name"]. Lists ["List name"]. Folders. Add ("Document Library URL", Spfilesystemobjecttype. folder); item ["Name"] = Your folder name; Site. rootweb. allowunsafeupdates=True; Item. Update (); site. rootweb. allowunsafeupdates=False;
 

Upload a file to a specified document library

Filestream FS =New  Filestream (direct, filemode. Open, fileaccess. Read); binaryreader br = New  Binaryreader (FS); byte [] filecontents = Br. readbytes (( Int  ) Fs. Length); br. Close (); FS. Close (); spfolder folder = Site. rootweb. getfolder ( " Document Library URL "  );  String Foldername = URL of the uploaded document;Site. rootweb. allowunsafeupdates=True;
Spfile sofle = Folder. Files. Add (Foldername, filecontents, True );
 Site. rootweb. allowunsafeupdates = False  ;