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IsValidCategoryId Method

Test the category id to make sure it is indeed a top-level built-in category.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 17.0.0.0 (17.0.1090.0)
Since: 2015

Syntax

C# 
public static bool IsValidCategoryId(
	ElementId categoryId,
	Document doc
)
Visual Basic 
Public Shared Function IsValidCategoryId ( _
	categoryId As ElementId, _
	doc As Document _
) As Boolean
Visual C++ 
public:
static bool IsValidCategoryId(
	ElementId^ categoryId, 
	Document^ doc
)

Parameters

categoryId
Type: Autodesk.Revit.DB ElementId
Category id to be tested.
doc
Type: Autodesk.Revit.DB Document
Document to look up the category by id.

Return Value

False unless categoryId corresponds to a valid built-in top-level model category.

Exceptions

Exception Condition
Autodesk.Revit.Exceptions ArgumentNullException A non-optional argument was NULL

See Also