[ADO]如何修改ADO的线程模型

ADO缺省情况下当然是Apartment线程模型。  If you are using this in IIS and ADO is only being used at page scope then it should be fine. If you are using it at the session or application level then you will need to mark it as both. 

 

那么怎么改为Both呢？

可能就是改一下注册表里面的线程模型。

 

在

C:\Program Files\Common Files\System\ado

文件夹下，有两个reg文件，很有趣，可能就是这个意思。

ADOFRE15.REG

ADOAPT15.REG

 

其中，ADOFRE15.REG就是这个内容：

REGEDIT4

 

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{00000507-0000-0010-8000-00AA006D2EA4}\InprocServer32]
"ThreadingModel"="Both"

 

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{00000514-0000-0010-8000-00AA006D2EA4}\InprocServer32]
"ThreadingModel"="Both"

 

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{0000050B-0000-0010-8000-00AA006D2EA4}\InprocServer32]
"ThreadingModel"="Both"

 

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{00000535-0000-0010-8000-00AA006D2EA4}\InprocServer32]
"ThreadingModel"="Both"

 

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{00000541-0000-0010-8000-00AA006D2EA4}\InprocServer32]
"ThreadingModel"="Both"

 

okay, you´ll see that the ThreadingModel is adjusted for the following coclasses: 1. Command2. Connection3. Parameter4. Recordset5. Error If the threading model selected is "Apartment" (the default), then theobjects listed above can be aclearcase/" target="_blank" >ccessed only by the thread created it.  Ifthreading model is "Both" and the object is created in an STA, then allaccess to it will through the single thread that runs in the STA. Ifthreading model is "Both" and the object is created in an MTA, then anythread in this MTA will have direct access to it. If the objects integrate FTM (I don´t know whether ADO does this or not),then different threads in different apartments will have direct access tothe objects (without proxies).