I have a list control in Flex that has been data bound to an e4x xml object from an HTTPService.
我在Flex中有一个列表控件,它已经从HTTPService绑定到e4x xml对象的数据。
I would now like to have a button that clears the list, how can I do this?
我现在想要一个清除列表的按钮,我该怎么做?
I have tried:
我试过了:
list.dataProvider = null;
which does not seem to work, I have also tried:
这似乎不起作用,我也尝试过:
list.dataProvider = {};
which clears the items but leaves [object,object] as the first item in the list...
清除项目但将[object,object]作为列表中的第一项...
2 个解决方案
#1
8
Perhaps...
list.dataProvider = new Array();
#2
6
Setting the dataProvider to a new Array object will throw an error:
将dataProvider设置为新的Array对象将引发错误:
Implicit coercion of a value of type Array to an unrelated type fl.data:DataProvider.
将Array类型的值隐式强制转换为不相关的类型fl.data:DataProvider。
Instead, you should use the removeAll() method provided by DataProvider:
相反,您应该使用DataProvider提供的removeAll()方法:
list.dataProvider.removeAll();
This triggers a REMOVE_ALL event in the DataProvider which, in turn, will update your list.
这会在DataProvider中触发REMOVE_ALL事件,而事件又会更新您的列表。
#1
8
Perhaps...
list.dataProvider = new Array();
#2
6
Setting the dataProvider to a new Array object will throw an error:
将dataProvider设置为新的Array对象将引发错误:
Implicit coercion of a value of type Array to an unrelated type fl.data:DataProvider.
将Array类型的值隐式强制转换为不相关的类型fl.data:DataProvider。
Instead, you should use the removeAll() method provided by DataProvider:
相反,您应该使用DataProvider提供的removeAll()方法:
list.dataProvider.removeAll();
This triggers a REMOVE_ALL event in the DataProvider which, in turn, will update your list.
这会在DataProvider中触发REMOVE_ALL事件,而事件又会更新您的列表。