No callback method can be executed normally, and no code can be written.

The system environment is win2003 vs2005.

The cause is to write any callback code. When the callback method is executed, VS is frozen. After a dozen seconds, VS can be changed. However, an error occurred while executing the code.

This code can be run in XP.

Byte [] BS = new byte [102400];
Private void button#click (Object sender, eventargs E)
{
Filestream FS = new filestream ("D: // game // ra2.exe", filemode. Open, fileaccess. Read );
FS. beginread (BS, 0, 4096, new asynccallback (readfile), FS );
}

Void readfile (iasyncresult R)
{
Filestream FS = (filestream) R. asyncstate;
FS. endread (R );
FS. beginread (BS, 0, 4096, new asynccallback (readfile), FS );
}

The debugging error message is as follows:

R. asyncstate is disabled because the previous function evaluate times out. You must continue the execution to re-enable function evaluation. Object

 

I found a post on this topic online. No solutions can be found.