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Specifies the reason for an unaccepted expression or value.
public enum DataRestrictions
  Public Enum DataRestrictions
  | Name | Description | 
|---|---|
| ExternalReference | You may not use references to other workbooks.  | 
      
| IntegerOnly | Decimal values cannot be used.  | 
      
| InvalidBetween | The maximum must be greater than or equal to the minimum.  | 
      
| InvalidFormula | Enter a valid formula.  | 
      
| InvalidMultiReference | This type of reference cannot be used in a formula. Change the reference to a single cell, or use the reference with a worksheet function, such as =SUM(A1:E5).  | 
      
| InvalidReference | This type of reference cannot be used in a formula.  | 
      
| InvalidValue | The value (date/time) you entered is invalid.  | 
      
| ListSource | The list source must be a delimited list, or a reference to single row or column.  | 
      
| Missing | Indicates that the formula is empty.  | 
      
| MissingBetween | You must enter both a Maximum and a Minimum.  | 
      
| NegativeValue | Negative values cannot be used.  | 
      
| None | Indicates that the expression is valid.  | 
      
| NotFoundNamedRange | A named range you specified cannot be found.  | 
      
| NumericOnly | The value must be a numeric value, numeric expression, or refer to a cell containing a numeric value.  | 
      
| ReferenceOperatorsOrArrayConstants | You may not use reference operators (such as unions, intersections and ranges) or array constants.  | 
      
| RelativeReference | You cannot use relative references.  |