public override void SaveContent(FilterEntry.FilterItemText filterItem)
{
filterItem.EditorToShow = this.tabControl.SelectedTab == freeDefinitionTabPage ? FilterEntry.FilterItemText.EditorSelection.FreeMode : FilterEntry.FilterItemText.EditorSelection.DistinctValues;
filterItem.UseRegex = useRegexCheckBox.Checked;
base.SaveContent(filterItem);
filterItem.SaveTextLines(this.textEdit.Lines.Where(s => !s.Equals(String.Empty)));
}
