[Tapestry5] 如何使校验器动态化
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hxzon
2011-02-22
如何使校验器动态化
模板： <t:loop source="value" value="item" formState="ITERATION"> <t:label for="numCurrentReceive"/> <t:textfield value="item.numCurrentReceive" t:id="numCurrentReceive" label="current receive num" validate="xxx"/> </td> </tr> </t:loop> 其中 the t:textfield's validate 是动态的,但不知如何完成? 尝试下列方法: <t:textfield value="item.numCurrentReceive" t:id="numCurrentReceive" label="current receive num" validate="prop:item.validateString"/> and the item class add this method: public String getValidateString(){ return "required,max="+this.getNumUnReceiving(); } 失败，抛出异常：不能将String转为校验器： |
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fantify
2011-02-23
试试通过FieldValidatorSource#createValidators(field, expression)返回FieldValidator对象
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hxzon
2011-02-24
万分感谢，我原来也想用这个方法，但是以为有loop有多次循环，不知道createValidators(field, expression)的field该用哪个值，想多了。一解决，谢谢~~
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