在控制器中，我有两个值：
public List<String> StringValue {get; set;}
public List<String> ListValue {get; set;}
ListValue 在构造函数中初始化，并添加几个字符串。此时，我可以在 VisualForce 页面中使用 {!StringValue} 和 {!ListValue[1]} 引用这些值。列表尤其是焦点 - 我什至可以添加伪常量（getter）作为索引，使 {!ListValue[nameIndex]} 成为有效的引用。
但是，当我尝试设置列表值而不是简单的字符串值时，遇到了异常。
<apex:param value="123" assignTo="{!ListValue[1]}" />
例外是 java.lang.ClassCastException: java.lang.String 无法转换为 common.formula.FormulaFieldReference
我想我了解问题的基础知识 - Salesforce 无法创建包含以下内容的 setter 引用索引参数（意味着只能引用采用单个参数的 setter）。
有没有办法解决这个问题，或者我只需要创建大量的 ListValue1、ListValue2 变量和相关代码？
In a controller I have two values:
public List<String> StringValue {get; set;}
public List<String> ListValue {get; set;}
The ListValue is initialized in the constructor and several strings are added. At this point in a value I can refer to these with {!StringValue} and {!ListValue[1]} in a VisualForce page. The list one in particular is the focus - I can even add pseudo-constants (getters) as indexes, making {!ListValue[nameIndex]} a valid reference.
However I've run into an exception when trying to set a list value instead of a simple string value.
<apex:param value="123" assignTo="{!ListValue[1]}" />
The exception is java.lang.ClassCastException: java.lang.String cannot be cast to common.formula.FormulaFieldReference
I think I understand the basics of the problem - Salesforce can't create a setter reference that includes an index parameter (meaning only setters that take a single parameter can be referenced).
Is there any way around this, or do I just have to create a massive amount of ListValue1, ListValue2 variables and associated code?
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这是一个技巧，但它避免了您创建数十个变量。
然后在你的控制器中：
你明白了。
It's a hack, but it avoids you having to create dozens of variables.
Then in your controller:
You get the idea.
我从来没有遇到过一种方法可以按照您要求的样式执行此操作，我建议要实现此目的，最简单的方法是将您想要的值连接到一个参数中，然后将它们拆分回来控制器内部。
您可能会找到一种合适的方法来使用
I've never come across a way to do this in the style you're requesting, I'd suggest that to get this going the easiest thing to do would be to concatenate the values you want into one parameter and then split them back up inside the controller.
You might find a suitable way to do this with
<apex:repeat>but I'm not sure on your full use case.