How can I do manually cleaning of the trashcan?

Recently I moved to trashcan a big amount of data to be erased, but when I tried to erase the data it refuses to do it and keeps telling me I have to manually clean the trashcan, so anyone can tell me how I do it?

opensuse 11.4 KDE 4.6!


navigate to /home/<your dir>/.local/share/Trash

You can delete the file from the /files folder there.