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**ValidateFields( **//firstfield, lastfield //[//,failed//]// //**), VIRTUAL, PROTECTED, PROC**

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| **ValidateField** | Validates the specified range of fields in the current record buffer and returns a success or failure indicator. |
| //firstfield// | A numeric constant, variable, EQUATE, or expression that identifies the first field to validate by its position in the FILE declaration. A value of one (1) indicates the first field, two (2) indicates the second field, etc. |
| //lastfield// | A numeric constant, variable, EQUATE, or expression that identifies the last field to validate by its position in the FILE declaration. A value of one (1) indicates the first field, two (2) indicates the second field, etc. |
| //failed// | A signed numeric variable that receives the identifier of the field that failed the validation process. A value of one (1) indicates the first field, two (2) indicates the second field, etc. If omitted, the calling procedure gets no indication of which field failed the validation process. |

The **ValidateField **method validates the specified range of fields in the current record buffer and returns a success or failure indicator, and otionally identifies the field that failed the validation process.

**Implementation:**

The ValidateFields method invokes the ValidateField method for each field in the range //firstfield //to //lastfield//.

**Return Data Type:**     BYTE

**See Also:**     [[validatefield  validate a field .htm|ValidateField]]