检查DataCard值并条件显示警告页面问题求助

核心问题分析 #

你的代码存在两个关键问题：

1. 变量赋值语法错误：Power Apps中设置全局变量必须使用Set()函数，而非直接用=赋值。原代码里的varIsNotOK = true不会真正修改变量值，导致后续判断始终基于初始的false值。
2. 逻辑冗余易出错：单独设置变量再判断的流程可以合并，既简化代码也能避免变量更新不及时的问题。

修复后的代码方案 #

方案1：直接判断执行（无需全局变量） #

将判断逻辑与提交、导航操作合并，去掉冗余变量：

If(
    DataCardValue17.Selected.Value = "Not OK" ||
    DataCardValue18.Selected.Value = "Not OK" ||
    DataCardValue19.Selected.Value = "Not OK" ||
    DataCardValue20.Selected.Value = "Not OK" ||
    DataCardValue21.Selected.Value = "Not OK" ||
    DataCardValue22.Selected.Value = "Not OK" ||
    DataCardValue23.Selected.Value = "Not OK" ||
    DataCardValue24.Selected.Value = "Not OK" ||
    DataCardValue25.Selected.Value = "Not OK" ||
    DataCardValue26.Selected.Value = "Not OK" ||
    DataCardValue27.Selected.Value = "Not OK" ||
    DataCardValue28.Selected.Value = "Not OK" ||
    DataCardValue29.Selected.Value = "Not OK" ||
    DataCardValue30.Selected.Value = "Not OK",
    SubmitForm(frmPJInsp); Navigate(scrDNO),
    SubmitForm(frmPJInsp); Navigate(Main)
)

方案2：修正变量赋值逻辑（保留全局变量） #

如果需要保留varIsNotOK供其他场景使用，需正确使用Set()函数：

Set(
    varIsNotOK,
    DataCardValue17.Selected.Value = "Not OK" ||
    DataCardValue18.Selected.Value = "Not OK" ||
    DataCardValue19.Selected.Value = "Not OK" ||
    DataCardValue20.Selected.Value = "Not OK" ||
    DataCardValue21.Selected.Value = "Not OK" ||
    DataCardValue22.Selected.Value = "Not OK" ||
    DataCardValue23.Selected.Value = "Not OK" ||
    DataCardValue24.Selected.Value = "Not OK" ||
    DataCardValue25.Selected.Value = "Not OK" ||
    DataCardValue26.Selected.Value = "Not OK" ||
    DataCardValue27.Selected.Value = "Not OK" ||
    DataCardValue28.Selected.Value = "Not OK" ||
    DataCardValue29.Selected.Value = "Not OK" ||
    DataCardValue30.Selected.Value = "Not OK"
);

If(
    varIsNotOK,
    SubmitForm(frmPJInsp); Navigate(scrDNO),
    SubmitForm(frmPJInsp); Navigate(Main)
)

额外优化建议 #

• 可将所有需要检查的组合框存入集合，大幅简化判断逻辑：

  Set(
      varIsNotOK,
      !IsEmpty(
          Filter(
              [DataCardValue17, DataCardValue18, ..., DataCardValue30],
              Selected.Value = "Not OK"
          )
      )
  )
  

• 确认组合框的取值方式正确：若组合框绑定的是复杂数据类型，需用Selected.'对应字段名'替代Selected.Value获取值。

内容的提问来源于stack exchange，提问作者Glenn G