C# (CSharp) IMongoQueryable.SingleOrDefault示例

示例#1

        public TEntity GetSingle(Expression <Func <TEntity, bool> > filter, params ISorting[] sortColumns)
        {
            if (filter == null)
            {
                throw new ArgumentException("Filter expression cannot be null", nameof(filter));
            }

            IMongoQueryable <TEntity> query = GetSet().Where(filter);

            if (sortColumns != null && sortColumns.Length > 0)
            {
                query = (IOrderedMongoQueryable <TEntity>)query.OrderBy(sortColumns);
            }

            return(query.SingleOrDefault());
        }

示例#2

 public DateTime?GetLastUpdatedTime()
 {
     return(_collection.SingleOrDefault()?.LastUpdated);
 }

示例#3

文件： MongoRepository.cs 项目： ArchitectNow/DevUp_SeverlessApi_Angular6

 public TType SingleOrDefault()
 {
     return(_query.SingleOrDefault());
 }