If you are attempting to edit a file via WebDAV within the context of a web project, your operation will not succeed. Web project do not currently support WebDAV or FTP interfaces; they currently only support CIFS.
:cry: I do not express clearly. I set l <config> <client> <edit-link-type>webdav</edit-link-type> </client> </config> And it can be edit in line .But when the file name is too long , it can not .