问题描述
我正在建立一个表单模块。早期的领域之一是一套单选按钮。默认情况下,第一个按钮被选中。接下来我会有一系列选择框。一个需要可见,其他人看不见。然后当用户选择不同的单选按钮时,我想要不同的选择框显示或隐藏。默认情况下,如何隐藏字段和标签,稍后再显示,取决于选择哪个单选按钮(或其他选择框选项)?您可以使用 #states
属性来实现。 #states
属性可以应用于所有Form API元素。
这里是,以示例为例。
希望这有助于...穆罕默德。
I'm building a form module. One of the early fields is a set of radio buttons. By default the first button is selected. Next I'll have a series of select boxes. One needs to be visible, the others invisible. Then as the user selects a different radio button I want different select boxes to show or hide. How can I hide the field and label by default and show it later dependent upon which radio button (or another select box option for that matter) is chosen?
You can use the #states
property to achieve that. The #states
property can be applied to all Form API elements.
Here's the documentation link with an example.
Hope this helps... Muhammad.
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