Monitor.Enter

[MyProblem]

Hi,

I just tried to convert my current project to the new beta 2 of the .net
framework and I encountered some problems with my thread synchronization -
that formerly worked well.

System.Threading.SynchronizationLockException: Object synchronization method was called from an unsynchronized block of code.
Code is below

Monitor.Enter (collectionvar );

if ( collectionvar .Count == 0 )
collectionvar = value();

Monitor.Exit (collectionvar );//i am getting error here.

return collectionvar ;

[MyProblem]

Hi guys,

Waiting for your soluitons.

Thanks in advance

[Motoma]

I have not done anything with Synchronization, but what may be happening is that your call to Monitor.Enter may be failing. Take a look at the MSDN and see what the possible results for that call are, and perhaps you can catch an error before an exception is thrown.

Hi,

I just tried to convert my current project to the new beta 2 of the .net
framework and I encountered some problems with my thread synchronization -
that formerly worked well.

System.Threading.SynchronizationLockException: Object synchronization method was called from an unsynchronized block of code.
Code is below

Monitor.Enter (collectionvar );

if ( collectionvar .Count == 0 )
collectionvar = value();

Monitor.Exit (collectionvar );//i am getting error here.

return collectionvar ;

[MyProblem]

I have not done anything with Synchronization, but what may be happening is that your call to Monitor.Enter may be failing. Take a look at the MSDN and see what the possible results for that call are, and perhaps you can catch an error before an exception is thrown.

Thanks Motoma,
Atleast you initiate, I'm just wondering why this code is not working in VS2005 , earliere it was working in VS2003.

I have seen lot discussion on Monitor.enter/exit ...but not one give the what need to do here.

[MyProblem]

1 first run of code:I got some point here.....what happing here when nothinin in _cache (cach.count=0 )at the time of Monitor.enter.....and after loading value it has some value at Monitor.exit so raising error because object value is not same.

2:second run no error because object have same value.

why this happing in only ASP.NET 2.0



public static GetCountyCollection Cache
{
get
{
Monitor.Enter ( _cache );



if (_cache.Count == 0)
_cache =FilCounty();

Monitor.Exit ( _cache );



return _cache;
}
}