Indicates whether the file with specified extension is selectable according specified condition.
            
Namespace: CMS.ExtendedControlsAssembly: CMS.ExtendedControls (in CMS.ExtendedControls.dll) Version: 8.0.0.0 (8.1.5347.20411)
Parameters
- selectableContent
 - Type: CMS.ExtendedControls SelectableContentEnum
Selectable content 
- ext
 - Type: 
System String
Extension to check 
- isContentFile
 - Type: 
System Boolean
Content file item flag 
Return Value
Type:See Also