The comparison of the keys are performed in a case-sensitive manner.
When an item of the given key is found, a check is performed of whether it is of type TBLabel. If the matching item is not of the correct type, null is returned. When duplicate keys are present across items of different types, an object present in the collection may be reported as not found if the first object matching key has a different type.
It is the application developer's responsibility not to add static labels having identical Key values to this collection of toolbar items. For optimal performance and robustness, the avoidance of duplicate key use within the same UltraWebToolbar is strongly recommended.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2