问题
I am having a problem with nested EL for <t:inputText> required Attribute. I am using tomahawk implementation.
I have a dataTable with 2 columns of inputText. I have forceId=true for both the inputText
boxes. When you look at view source of page, id's looks as postal[0] and zone[0] where postalCode and zone are the id's of textBox and the number 0 is the rowId of dataTable.
My requirement here is zone inputText is required only when postal is not empty. I have written something like below which I know is not right.
required="#{!empty param['postalCode[#{rowIndex}]']}">
Can some one suggest how to do it?
回答1:
This should work:
required="#{!empty paramValues.postalCode[rowIndex]}"
The #{paramValues.name} returns a String[] with values in the indexed order.
来源：https://stackoverflow.com/questions/3149848/nested-el-in-jsf