我正在自动化使用CSV文件的mailmerge进程。此过程的一部分需要创建数据库(OpenOffice odb文件),然后将其注册为数据源。当我来删除数据库时,我得到一个异常,说明“无法删除你的文件:它正被另一个人或程序使用”。问题是我不能让OpenOffice进程释放这个资源(不杀死它)。我目前的代码是:
public string DeleteDatasource(string datasourceName)
{
string result = string.Empty;
object databaseContext = _MultiServiceFactory.createInstance("com.sun.star.sdb.DatabaseContext");;
try
{
XDatabaseRegistrations databaseRegistrations = (XDatabaseRegistrations)databaseContext;
if(databaseRegistrations.hasRegisteredDatabase(datasourceName))
{
/* //attempt one
XNameAccess nameAccess = (XNameAccess)OODatabaseContext;
object datasource = nameAccess.getByName(datasourceName);
XNamingService namingservice = (XNamingService)OODatabaseContext;
namingservice.revokeObject(datasourceName);
*/
//attempt 2
string databaseLocation = databaseRegistrations.getDatabaseLocation(datasourceName);
databaseRegistrations.revokeDatabaseLocation(datasourceName);
if (!String.IsNullOrEmpty(databaseLocation))
try
{
//As File Path converts the uno file string into a standard form i.e. "file:///c:/temp/DatabaseFile.odb" to "c:\\temp\\DatabaseFile.odb"
File.Delete(databaseLocation.AsFilepath());
}
catch (System.Exception ex)
{
//some error handling
}
}
return result;
}
catch (System.Exception ex)
{
//More error handling
}
}
任何想法如何取消注册此数据源,以便我可以删除odb。 感谢
答案 0 :(得分:0)
管理解决这个问题,以防万一其他人对此感兴趣。
关键是要获得对实际数据源的引用,然后处理它。
基本步骤是:
此源代码类似于
XNameAccess nameAccess = (XNameAccess)_MultiServiceFactory.createInstance("com.sun.star.sdb.DatabaseContext");
object datasource = nameAccess.getByName(datasourceName);
XDocumentDataSource obj = (XDocumentDataSource)((Any)datasource).Value;
//get the location of the associated odb file before we dispose the document object
//and deregister the datasource
string databaseLocation = databaseRegistrations.getDatabaseLocation(datasourceName);
databaseRegistrations.revokeDatabaseLocation(datasourceName);
((XComponent)obj.DatabaseDocument).dispose();
((XComponent)obj).dispose();
//put in a try block as we want to continue even if this fails
//AsFilepath converts the OpenOffice file path to standard for that can be used with the standard IO file access classes
File.Delete(databaseLocation.AsFilepath());
如果有任何改进,请告诉我......
答案 1 :(得分:0)
单击“查看”,单击“数据源”, 右键单击要删除的已注册数据库, 单击已注册的数据库, 对于要删除的突出显示的已注册数据库,单击“删除”。