Gets the size of the array that is referenced by the Buffer property.
Assembly: System.Web (in System.Web.dll)
A MemoryResponseElement object that is created by ASP.NET is a fixed-size memory buffer that is created from a pool of memory buffers. As a result, the contents of a MemoryResponseElement object often do not completely fill the Buffer array. Typically only a part of the Buffer array will contain response data. Therefore, providers that serialize the Buffer array directly (instead of serializing the complete type that is being stored in the output cache) must use the property to determine how much of the Buffer array must be stored.