Or offcourse
[C#]
public static Hashtable Synchronized(
Hashtable table
);
Remarks
A Hashtable can support one writer and multiple readers concurrently. To
support multiple writers, all operations must be done through this
wrapper only.
Enumerating through a collection is intrinsically not a thread-safe
procedure. Even when a collection is synchronized, other threads could
still modify the collection, which causes the enumerator to throw an
exception. To guarantee thread safety during enumeration, you can either
lock the collection during the entire enumeration or catch the
exceptions resulting from changes made by other threads.
[Visual Basic, C#] The following code example shows how to lock the
collection using the SyncRoot during the entire enumeration:
[C#]
Hashtable myCollection = new Hashtable();
lock( myCollection.SyncRoot ) {
foreach ( Object item in myCollection ) {
// Insert your code here.
}
}
From:
ms-help://MS.MSDNQTR.2004JUL.1033/cpref/html/frlrfSystemCollectionsHasht
ableClassSynchronizedTopic.htm
Paul
-----Original Message-----
From: Unmoderated discussion of advanced .NET topics.
[mailto:[EMAIL PROTECTED] On Behalf Of Steve Johnson
Sent: Wednesday, July 21, 2004 1:41 PM
To: [EMAIL PROTECTED]
Subject: Re: [ADVANCED-DOTNET] Multithreaded hash table access
James Berry wrote:
> I'm sure there must be a really elegant way to do this. Any hints?
Yep. Look at System.Threading.ReaderWriterLock.
--
Steve Johnson
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Some .NET courses you may be interested in:
NEW! Guerrilla ASP.NET, 17 May 2004, in Los Angeles
http://www.develop.com/courses/gaspdotnetls
View archives and manage your subscription(s) at http://discuss.develop.com
