Occurs when the command associated with this AddInCommandBinding initiates a check to determine whether the command can be executed on the command target.

Namespace: Autodesk.Revit.UI
Assembly: RevitAPIUI (in RevitAPIUI.dll) Version: 2015.0.0.0 (2015.0.0.0)
Since: 2013

Syntax

C#
`public event EventHandler<CanExecuteEventArgs> CanExecute`

Visual Basic
`Public Event CanExecute As EventHandler(Of CanExecuteEventArgs)`

Visual C++
`public: event EventHandler<CanExecuteEventArgs^>^ CanExecute { void add (EventHandler<CanExecuteEventArgs^>^ value); void remove (EventHandler<CanExecuteEventArgs^>^ value); }`

Remarks

This callback will be called by Revit's user interface any time there is a contextual change. Therefore, the callback must be fast and is not permitted to be blocking in any way.

CanExecute Event

Syntax

Remarks

See Also

Stop fighting Revit automation.