I am assigning multiple stylesheets to the EditorWysiwygModeCss property using the format "~/styles1.css,~/styles2.css" The styles from both files are displayed in the drop down list on the control but once more than one file is added the current styles being used are no longer rendered. The html view shows the correct styles assigned but they are just not being rendered by the control. i will be happy to put this online so you guys can see for yourself.
It appears to only render the styles that are contained in the file that is listed first. For example, if the setting was set to : "~/home/stylesheets/files/styles2.css,~/home/stylesheets/files/styles1.css" Then only styles from the "styles2.css" file will be rendered in the control.