Seach a DefinitionFile for the ExternalDefinition corresponding to a parameter in a document.

Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)

Syntax

C#
public static ExternalDefinition GetExternalDefinitionForElementId(
	Document doc,
	ElementId paramId,
	DefinitionFile definitionFile
)
Visual Basic
Public Shared Function GetExternalDefinitionForElementId ( _
	doc As Document, _
	paramId As ElementId, _
	definitionFile As DefinitionFile _
) As ExternalDefinition
Visual C++
public:
static ExternalDefinition^ GetExternalDefinitionForElementId(
	Document^ doc, 
	ElementId^ paramId, 
	DefinitionFile^ definitionFile
)

Parameters

doc
Type: Autodesk.Revit.DB..::..Document
A document.
paramId
Type: Autodesk.Revit.DB..::..ElementId
The id of a shared parameter in the document.
definitionFile
Type: Autodesk.Revit.DB..::..DefinitionFile
A database of shared parameters.

Return Value

The external parameter corresponding to the parameter's ElementId, or null if the Id does not correspond to an external parameter, or the parameter is not in the definition file.

Exceptions

ExceptionCondition
Autodesk.Revit.Exceptions..::..ArgumentNullException A non-optional argument was nullNothingnullptra null reference (Nothing in Visual Basic).

See Also