一对一互连控件的动态绑定

发布于 2024-11-02 08:06:08 字数 199 浏览 1 评论 0原文

是否可以为依赖于相应重复控件的重复控件提供动态绑定。考虑以下场景。

    Principal1  Rate1
    Principal2  Rate2
    Principal3  Rate3
    Principal4  Rate4

在这种情况下，Rate1 取决于Principal1，例如(Rate1

原文

Is it possible to provide dynamic binding for repeating controls which has dependency on corresponding repeating controls. Consider the following scenario.

    Principal1  Rate1
    Principal2  Rate2
    Principal3  Rate3
    Principal4  Rate4

In this scenario the Rate1 is dependent on Principal1 such as (Rate1 < Principal1 ). Similar conditions stays for Rate2,Rate3,Rate4 as well. Is it possible to impound this constraint using a generalized bind or is it necessary to put binds and constraints for each individual Rate control? Kindly advise..

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如梦 2024-11-09 08:06:08

查看 XPath 相对路径。

您可以为重复区域的相对路径编写约束。我认为Principal1 和Rate1 将一起重复。

<repeated-section>
   <principal>
   <rate>
</repeated-section>

我们对主字段施加了一个约束，规定如果速率（在同一重复内）大于 100，则主字段有效

<xforms:bind nodeset="instance('instance')/repeated-section/principal"     
     constraint="../rate > 100" />

注意： 另外请确保不在重复部分中使用绑定。使用 ref="" 代替并声明输入相对于重复部分的相对路径

Look into XPath relative paths.

You can write the constraint for the repeated areas relative path. I presume Principal1 and Rate1 are going to be repeated together.

<repeated-section>
   <principal>
   <rate>
</repeated-section>

We have a constraint placed on the principal field that states if the rate (within the same repeat) is greater than 100, the principal field is valid

<xforms:bind nodeset="instance('instance')/repeated-section/principal"     
     constraint="../rate > 100" />

Note: Also make sure not to use binds within repeated sections. Use ref="" instead and state the input's relative path in relation to the repeated section

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