To create it, open a new file at $WASP_ROOT/app/lib/validator/PriceRangeCustomValidator.class.php, and fill it with the code in Listing 17.

要创建它，在 $WASP_ROOT/app/lib/validator/PriceRangeCustomValidator.class.php 打开一个新文件，并使用 清单 17中的代码填充它。

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Open the MySQLDatabaseSystemUnitValidator class and add a new class attribute for the validator identifier to your source code (see Listing 8).

打开mysqldatabasesystemunitvalidator类，并为确认器标识符向源代码添加一个新的类属性(见于代码清单8)。

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Click the "... "button next to" WS-Policy validator "to open the Settings.

单击“ WS - Policy validator ”旁边的“…”按钮打开Settings。

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