/// <summary>
/// Attaches this instance.
/// </summary>
protected void Attach()
{
if (HttpContext.Current != null)
{
// Use HttpContext to attach this object to since when using ASP.NET, requests can be migrated
// from the thread-pool to an internal queue and back and it will make us lose our context.
//
// see: http://piers7.blogspot.com/2005/11/threadstatic-callcontext-and_02.html
var existingContext = (ContextBoundObject <T>)HttpContext.Current.Items[ContextKey];
if (existingContext != null)
{
this.Parent = existingContext;
}
HttpContext.Current.Items[ContextKey] = this;
}
else
{
var existingContext = (ContextBoundObject <T>)CallContext.LogicalGetData(ContextKey);
if (existingContext != null)
{
this.Parent = existingContext;
}
CallContext.LogicalSetData(ContextKey, this);
}
}
/// <summary>
/// Detaches this instance.
/// </summary>
public void Detach()
{
if (HttpContext.Current != null)
{
// Use HttpContext to attach this object to since when using ASP.NET, requests can be migrated
// from the thread-pool to an internal queue and back and it will make us lose our context.
//
// see: http://piers7.blogspot.com/2005/11/threadstatic-callcontext-and_02.html
HttpContext.Current.Items[ContextKey] = this.Parent;
}
else
{
if (this.Parent != null)
{
CallContext.LogicalSetData(ContextKey, this.Parent);
}
else
{
CallContext.FreeNamedDataSlot(ContextKey);
}
}
this.Parent = null;
}