public static CulturePreservingExecutionContext Capture()
{
// ExecutionContext.SuppressFlow had been called - we expect
// ExecutionContext.Capture() to return null, so match that
// behavior and return null.
if (ExecutionContext.IsFlowSuppressed())
{
return(null);
}
var culturePreservingContext = new CulturePreservingExecutionContext();
if (culturePreservingContext._context != null)
{
return(culturePreservingContext);
}
else
{
// If ExecutionContext.Capture() returns null for any other
// reason besides IsFlowSuppressed, then match that behavior
// and return null
culturePreservingContext.Dispose();
return(null);
}
}
public static void Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, object state)
{
if (executionContext == null)
{
throw new ArgumentNullException(nameof(executionContext));
}
if (callback == null)
{
return; // Bail out early if callback is null
}
// Compat switch is set, defer directly to EC.Run
if (BaseAppContextSwitches.DoNotUseCulturePreservingDispatcherOperations)
{
ExecutionContext.Run(executionContext._context, callback, state);
return;
}
// Save culture information - we will need this to
// restore just before the callback is actually invoked from
// CallbackWrapper.
executionContext._cultureAndContext = CultureAndContextManager.Initialize(callback, state);
try
{
ExecutionContext.Run(
executionContext._context,
CulturePreservingExecutionContext.CallbackWrapperDelegate,
executionContext._cultureAndContext);
}
finally
{
// Restore culture information - it might have been
// modified during the callback execution.
executionContext._cultureAndContext.WriteCultureInfosToCurrentThread();
}
}
