I would like to find out, if a string (stored in Column OSchlagwoerter in the database) contains any string within a list of strings (stored in variable tags).
In order to achieve this, I want to loop through the list of tags and check for each tag if OSchlagwoerter contains it. However, I cannot access the field OSchlagwoerter of the object passed.

The database query looks like this

return dbctx.Images                 
    .Where(tagFilter(tags))
    .Select(x => new ImageObj()                
    .ToList();

The tagFilter Expression should look like this:

private Expression<Func<ImageObj, bool>> tagFilter(List<string> tags)
{
    if ( tags.Count > 0)
    {
        //This line does not work
        var tagsInDb = x => x.OSchlagwoerter;

        foreach (var t in tags)
        {
            if (tagsInDb .Contains(t))
            {
                return true;
            }
        }
        return false;

        //first approach, does not work, only finds one tag in columns with on word in it
        //return x => tags.Contains(x.OSchlagwoerter);
    }
    else
    {
        return x => true;
    }
}