The Max attribute controls the number of entries to display per page.
max属性控制了每个页面中显示的项的个数。
The "relevant" attribute controls the visibility of elements of the XForms form.
“relevant”属性控制X forms表单元素的可见性。
Attribute controls the scoping of this variable, and defaults to page scope.
属性控制该变量的作用域，缺省情况下是页面作用域。
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