Exclusive item delegate with a radio indicator that can be toggled on or off. 更多...
| import 语句： | import QtQuick.Controls 2.2 |
| Since: | Qt 5.7 |
| 继承： | ItemDelegate |
RadioDelegate presents an item delegate that can be toggled on (checked) or off (unchecked). Radio delegates are typically used to select one option from a set of options.
RadioDelegate inherits its API from ItemDelegate , which is inherited from AbstractButton . For instance, you can set text , and react to clicks 使用 AbstractButton API. The state of the radio delegate can be set with the checked 特性。
Radio delegates are auto-exclusive by default. Only one delegate can be checked at any time amongst radio delegates that belong to the same parent item; checking another delegate automatically unchecks the previously checked one. For radio delegates that do not share a common parent, ButtonGroup can be used to manage exclusivity.
RadioButton is similar to RadioDelegate, except that it is typically not used in views, but rather when there are only a few options, and often with the requirement that each button is uniquely identifiable.
ButtonGroup {
id: buttonGroup
}
ListView {
model: ["Option 1", "Option 2", "Option 3"]
delegate: RadioDelegate {
text: modelData
checked: index == 0
ButtonGroup.group: buttonGroup
}
}
另请参阅 Customizing RadioDelegate , 委托控件 ，和 RadioButton .