CheckNumberOrExpression method
Checks if:
- A given expression is valid.
 - A number is correct according to the locale.
 
Parameters
| Name | Description | Mandatory | Type | 
|---|---|---|---|
| qExpr | 
				 Expression to check.  | 
			
			Yes | String | 
Returns
| Name | Description | Type | 
|---|---|---|
| qErrorMsg | 
				 Message displayed when there is a syntax error.  | 
			String | 
| qBadFieldNames | 
				 A list of bad field names.  | 
			Array of NxRange |