DicomObjects Reference
DicomObjects Reference / DicomContexts Collection / Item Property
The ID of the context being accessed
Item Property
Description
Provides access to the members of a DicomContexts collection
Property type
Read-only property
Syntax
Visual Basic
Public Property Item( _
   ByVal ContextID As Integer _
) As DicomContext
Parameters
ContextID
The ID of the context being accessed
Example

As it is a presentation context ID, the index must be a small, odd integer (1-255)
As items may be missing or rejected from the sequence, the best way to access all the members of a DicomContexts collection is using the standard iterator (for each in VB).  In languages where this is not available then the Exists property must be tested, and the best method is along the lines:

Copy Code
for i=1 to 255 step 2
if contexts.exists(i) then
   context = contexts(i)
   process context item…
  end if
next
spacer_300be30a-de70-48d1-8002-66a2e2ac7187

As this is the default property, the term "Item" is rarely used, as

Contexts.Item(3)

may rather more concisely be written as

Contexts(3)

See Also