MDA Error : ContextSwitchDeadlock was detected

Dear All,

Good night.

I tried to run a C# code, and i have got the following errors:
ContextSwitchDeadlock was detected
Message: The CLR has been unable to transition from COM context 0x1b2008 to COM context 0x1b2178 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.


My Code :

FileStream fs = new FileStream(newPath, FileMode.Append, FileAccess.Write);
StreamWriter sw = new StreamWriter(fs);

for (int i = 0; i < dsCustInvoice.Tables[0].Rows.Count; i++)

{


//i used this code to call http site.
string url = "XXXXX";





sw.WriteLine("Test"); // Write to the file

wc.DownloadString(url); // download URL.

}



I hope find any solution.

Dear ,

I need help
at least show me how to use
ContextSwitchDeadlock.

Is wc reference of webclient object ?

http://bytes.com/topic/c-sharp/answe...dlock-detected