open-validation-file ("ova")

See this command in the command table.

To access this command:

Using the command line, enter "open-validation-file".
Use the quick key combination "ova".
Display the Find Command screen, locate open-validation-file and click Run.

Command Overview

Open a validation file using the Project Browser.

When a validation file has been opened and it is being used, (see validate-onthefly-switch), when data is defined or edited the values you provide are constrained by the contents of the validation file.

For example, in order to validate or constrain a numeric attribute called ZONE between 1 and 6 with a default value of 4 the validation would contain one record for the attribute ZONE containing the following values:

```
ATTNAME - ZONE
```
```
ATTTYPE - N
```
```
MIN - 1
```
```
MAX - 6
```
```
DEFAULT - 4
```

VALUE - Not used for numeric attributes.

As another example, to constrain an alphanumeric attribute called LITHO to have values of LIME, GRANITE or QUARTZ the validation file would have three records. For each of the three records:

ATTNAME would be LITHO

ATTYPE would be A

VALUE would be LIME, GRANITE and QUARTZ in each of the records.

Note: MIN and MAX fields are not used for alphanumeric attributes.

For the validation file to be used the validate-onthefly-switch must be active and the attributes must exist on the string or point data. Attributes can be added using the add-attributes command.