| Leadtools.Documents.UI Namespace > DocumentViewerCommands Object : CanRun Method |
function Leadtools.Documents.UI.DocumentViewerCommands.canRun( commandName , value )
| Parameter | Type | Description |
|---|---|---|
| commandName | string | Command name |
| value | object | Optional value to pass to the callback |
| Type | Description |
|---|---|
| boolean | true if the command can run with the specified value; otherwise, false. |
This method checks if the command exists and if it has a CanRunHandler callback value that is not null, if so, it will invoke the callback with value and returns the result.
If the command does not exist or it does not have a handler, then this method returns false - the command cannot run.
Refer to Document Viewer Commands for more information.