property NAVObjectTemplate.TemplateException as String
Indicates the detailed information about the exception that occurs.

TypeDescription
String A String expression that describes the error/exception in the Item/Template call.
By default, the TemplateException property is empty. The TemplateError / TemplateException property indicates the error/exception that occurred in the Item/Template call. The TemplateThrowError property specifies whether the control fires an exception/error when the Template call fails. The TemplateError / TemplateException gets the error if the Template calls fails.

By default, the control fires an exception/error when the Item/Template call fails like shown in the following screen shot: