CategoryVisible Property

public bool this[
	View view
] { get; set; }

Public Property Visible ( 
	view As View
) As Boolean
	Get
	Set

public:
property bool Visible[View^ view] {
	bool get (View^ view);
	void set (View^ view, bool value);
}

member Visible : bool with get, set

This affects 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

Thus setting this value may not affect the actual visibility of elements of this category in the view.