四舍五入前完成货币字段约束检查

发布于 2024-11-01 01:11:29 字数 827 浏览 1 评论 0原文

大家好我正在对我的货币字段进行单元测试，我发现这个问题可以被视为一个错误。

<xforms:bind id="amount" nodeset="instance('form')/data/amount"
constraint="if(.!='') then number(.) >0 and string-length(.)&lt;20 else ."/>
...
<fr:currency bind="amount" xxforms:maxlength="50" incremental="true">
   <xforms:alert>Value should be below $ 9,999,999,999,999,999,999.99</xforms:alert>
</fr:currency>

在上述情况下我试图实现的条件是，进行最大值检查< “9999999,999999999.99”总共有 19 个字符。（我也尝试过constraint =“if（.=''）then true（）else number（。）＆lt;10000000000000000”也代替长度检查，但后来看到该数字检查中的一些错误切换到此字符串长度检查）

现在在这种情况下字符串长度的问题是如果我输入“9,999,999,999,999,999.991”，则会发生以下情况 1. 进行约束检查。返回“false”为“9999999999999999.991”= 20 长度 2.货币金额四舍五入。

所以我的约束检查失败了。但是，如果我单击该字段并单击该字段之外，则约束检查返回 true，

任何人都可以建议更好的方法来执行此操作或如何解决上述问题。

原文

HI All
i was unit testing my currency field and i found this issue that can be considered as a bug.

<xforms:bind id="amount" nodeset="instance('form')/data/amount"
constraint="if(.!='') then number(.) >0 and string-length(.)<20 else ."/>
...
<fr:currency bind="amount" xxforms:maxlength="50" incremental="true">
   <xforms:alert>Value should be below $ 9,999,999,999,999,999,999.99</xforms:alert>
</fr:currency>

The condition that i am trying to achieve in the above case is, to put a max value check < "9999999,999999999.99" this has 19 characters total. (i had tried constraint="if(.='') then true() else number(.)<10000000000000000" also instead of length check, but later seeing some bug in that number check switched to this string-length check)

now the issue in this case of string length is
if i enter "9,999,999,999,999,999.991" the following happens
1. the constraint check is performed. which returns 'false' as "9999999999999999.991" = 20 length
2. the currency amount is rounded off.

so my constraint check fails. But if i click the field and click outside the field, the constraint check returns true

can anyone suggest a better way to do it or how to solve the above issue.

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