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Article ID: 824192 - Last Review: March 13, 2004 - Revision: 1.1
BUG: General protection fault when you make changes to XML nodes
When you make a change to an XML node directly in an XMLHTTP application, you receive the following general protection fault (GP fault) error message:
The instruction at <memoryaddress> referenced memory at <memoryaddress>. The memory could not be "read".
is the placeholder for the respective memory address.
When an event is raised in an XMLHTTP application, the Mshtml.dll file may destroy a node to replace the node during XML node manipulation in the event handler. Other statements may exist in the event handler in an Internet Explorer message loop that may access the XML node directly for manipulation.
When the node is accessed directly, a GP fault occurs because it accesses a node that no longer exists. The node was moved by the Mshtml.dll file.
To work around this problem, avoid direct access of the node in the event handler, and include a process timer to fire the manipulation code after a short delay of 100 milliseconds.
For example, if the original call that changes the nodes is the
MoveNode(item) function, create a worker function that is named MoveNode_Worker(item), and then move the code that actually handles the manipulation of the nodes to the
MoveNode_Worker(item) function.
In the
MoveNode() function, call the
MoveNode_Worker(item) worker thread after 100 milliseconds by using the
window.setInterval() function function.
interval = window.setInterval("MoveNode_Worker(item)",100);Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section of this article.
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
288913Â
(http://kbalertz.com/Feedback.aspx?kbNumber=288913/
)
HOWTO: Use XPath queries in MSXML DOM selectNodes method
APPLIES TO
- Microsoft Internet Explorer (Programming) 6 (SP1)
- Microsoft XML Parser 2.0
- Microsoft XML Parser 2.5
- Microsoft XML Parser 2.6
- Microsoft XML Parser 3.0
- Microsoft XML Core Services 4.0
| kbhtml kbxml kbbug KB824192 |
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