M

View.GetCategoryHidden

Description:
Checks if elements of the given category are set to be invisible (hidden) in this view.

Remarks:
This checks only if the category is set visible or invisible individually. Other Revit mechanisms may also affect the visibility of elements of this category, including:

The category classes settings for model categories, annotation categories, import categories or analytical model categories.
View filters.
Elements hidden individually in the view.

Thus the return value may not reflect the actual visibility of elements of this category in the view.

public bool GetCategoryHidden(
	ElementId categoryId
)

Public Function GetCategoryHidden ( _
	categoryId As ElementId _
) As Boolean

public:
bool GetCategoryHidden(
	ElementId^ categoryId
)

Autodesk.Revit.DB.ElementId

categoryId

The ID of the category.

Return Value bool True if the category is invisible (hidden), false otherwise.

Autodesk.Revit.Exceptions.ArgumentException

categoryId does not correspond to a Category.
Autodesk.Revit.Exceptions.ArgumentNullException

A non-optional argument was NULL