Esempio n. 1
0
        /// <summary>
        /// Returns null if:
        /// 1. Could not take a lock on the item
        /// 2. Item was not available locally
        ///
        /// When you are done editing, call CommitAsync() on the RecordItemEditOperation
        /// To abort, call RecordItemEditOperation::Cancel()
        ///
        /// </summary>
        public IAsyncOperation <RecordItemEditOperation> OpenForEditAsync(ItemKey key)
        {
            if (key == null)
            {
                throw new ArgumentNullException("key");
            }
            return(AsyncInfo.Run <RecordItemEditOperation>(async cancelToken =>
            {
                RecordItemLock rLock = this.AcquireItemLock(key);
                if (rLock == null)
                {
                    return null;
                }

                RecordItemEditOperation editOp = null;
                try
                {
                    editOp = await this.OpenForEditAsync(key, rLock);
                    return editOp;
                }
                finally
                {
                    if (editOp == null)
                    {
                        rLock.Release();
                    }
                }
            }));
        }
Esempio n. 2
0
 void ReleaseLock()
 {
     if (m_rLock != null)
     {
         m_rLock.Release();
         m_rLock = null;
     }
 }