Activity.Source Property 
Definition
Important
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Gets the activity source associated with this activity.
public:
 property System::Diagnostics::ActivitySource ^ Source { System::Diagnostics::ActivitySource ^ get(); };public System.Diagnostics.ActivitySource Source { get; }member this.Source : System.Diagnostics.ActivitySourcePublic ReadOnly Property Source As ActivitySourceProperty Value
Remarks
All activities created from public constructors will have a singleton source where the source name is an empty string. Otherwise, the source will hold the object that created the activity through StartActivity.