Exchange日历：ConversationId是FindItem实例的主事件的良好标识符吗？ [英] Exchange calendar: Is ConversationId a good identifier of master events for FindItem occurrences?

问题描述

我在SOAP FindItem 调用的Exchange日历中收集约会。这会返回单个事件和（自定义）重复事件的发生。

当处理这些事件时，我使用 GetItem 每个事件的主事件的ID（ ItemType = citOccurrence ）。完成后，我可以确定是否仍然需要在内部存储主事件（并检索其所有详细信息），或者是否已经这样做。

但是在更长的 FindItem 期间，许多发生相同的重复事件（特别是无止境的事件），这意味着必须做很多 GetItem 'get master'调用到服务器（第一个结果是'你必须存储主人'，所有其他人都在你已经有这个主人）。

我看过 BaseShape AllProperties 返回的属性，看起来 ConversationId 可以是一个属性，我可以用它来标识同一主事件的发生。测试事件的示例数据：

 < t：ItemId Id =AAMk [snip] AAEA ==ChangeKey =DwAAABYAAABs2 / j8u1jEQJde5BzoAC + PAAC5aMZ //> 
< t：Subject>发生次数< / t：Subject> 
< t：ConversationId Id =AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQANxmlGQ / 3ahArhg + mv + UJSo =/> 
 
< t：ItemId Id =AAMk [snip] AAEA ==ChangeKey =DwAAABYAAABs2 / j8u1jEQJde5BzoAC + PAAC5aMZ //> 
< t：Subject>修改的发生< / t：Subject> 
< t：ConversationId Id =AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQANxmlGQ / 3ahArhg + mv + UJSo =/> 
 
< t：ItemId Id =AAMk [snip] RrAAA =ChangeKey =DwAAABYAAABs2 / j8u1jEQJde5BzoAC + PAAC5aMaA/> 
< t：Subject>新的单一事件< / t：Subject> 
< t：ConversationId Id =AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQAMRNQtffkIdFvs73IVVObM =/> 
 
< t：ItemId Id =AAMk [snip] AAEA ==ChangeKey =DwAAABYAAABs2 / j8u1jEQJde5BzoAC + PAAC5aMZ //> 
< t：Subject>发生次数< / t：Subject> 
< t：ConversationId Id =AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQANxmlGQ / 3ahArhg + mv + UJSo =/> 
 
< t：ItemId Id =AAMk [snip] RtAAA =ChangeKey =DwAAABYAAABs2 / j8u1jEQJde5BzoAC + PAAC5aMaG/> 
< t：Subject>会议< / t：Subject> 
< t：ConversationId Id =AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQAOZVB7gVSTJCtmZMMcXVBfQ =/> 
  

问题：是 ConversationId

注意：

• 这里有一个类似的问题




• 此外，，但它们似乎可以解决。



• （已编辑添加） 快速测试< a>显示 ConversationID ， UID ，甚至 InstanceIndex 都是候选人。

解决方案

尝试iCalUID这是财产，但我可以离开一点）。如果您有多房间会议，UID将在两个房间的约会相同。我没有在一段时间检查，但我相信它也将一样的同一主人的实例。

I collect the appointments in an Exchange calendar with a SOAP FindItem call. This returns single events and (custom) occurrences of recurring events.

When processing these I use GetItem to retrieve the ID of the master event for each occurrence (ItemType=citOccurrence). After that is done, I can determine if I still need to store the master event internally (and retrieve all its details), or if I have already done so.

But with many occurrence of the same recurring event (especially with unending ones) in a longer FindItem period, this means having to do a lot of GetItem 'get master' calls to the server (with the 1st one resulting in 'you must store the master' and all the others in 'you already have this master').

I have looked at the properties returned with BaseShape AllProperties and it seems that ConversationId could be a property that I can use to identify occurrences of the same master event. Sample data for test events:

<t:ItemId Id="AAMk[snip]AAEA==" ChangeKey="DwAAABYAAABs2/j8u1jEQJde5BzoAC+PAAC5aMZ/"/>
<t:Subject>Occurrence</t:Subject>
<t:ConversationId Id="AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQANxmlGQ/3ahArhg+mv+UJSo="/>

<t:ItemId Id="AAMk[snip]AAEA==" ChangeKey="DwAAABYAAABs2/j8u1jEQJde5BzoAC+PAAC5aMZ/"/>
<t:Subject>Modified occurrence</t:Subject>
<t:ConversationId Id="AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQANxmlGQ/3ahArhg+mv+UJSo="/>

<t:ItemId Id="AAMk[snip]RrAAA=" ChangeKey="DwAAABYAAABs2/j8u1jEQJde5BzoAC+PAAC5aMaA"/>
<t:Subject>New single event</t:Subject>
<t:ConversationId Id="AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQAMRNQtffkIdFvs73IVVJObM="/>

<t:ItemId Id="AAMk[snip]AAEA==" ChangeKey="DwAAABYAAABs2/j8u1jEQJde5BzoAC+PAAC5aMZ/"/>
<t:Subject>Occurrence</t:Subject>
<t:ConversationId Id="AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQANxmlGQ/3ahArhg+mv+UJSo="/>

<t:ItemId Id="AAMk[snip]RtAAA=" ChangeKey="DwAAABYAAABs2/j8u1jEQJde5BzoAC+PAAC5aMaG"/>
<t:Subject>Meeting</t:Subject>
<t:ConversationId Id="AAQkADgyMTc3ZTI4LTU1ZmItNGI5Yy04YzVjLTk2MjFiZjY5ODkyYgAQAOZVB7gVSTJCtmZMMcXVBfQ="/>

Question: Is ConversationId a reliable property to use for this?

Notes:

• From reading around I get the impression that is primarily used for messages, not appointments.

• There is a similar question here but that does not definitively answer mine.

• Also, there are some issues retrieving ConversationId under Exchange 2007, but they seem solvable.

• (Edited to add) A quick test shows that ConversationID, UID, and even InstanceIndex are all candidates. Which is the 'definitive' one?

解决方案

Try iCalUID (I think that is the property, but I could be off a little). If you have a multi-room meeting, the UID will be the same for appointments in both rooms. I've not checked in some time, but I believe it will also be the same for instances of the same master.

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