WPF支持OneWay,TwoWay,OneTime,Default和OneWayToSource
2013-12-09 17:03
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无论是目标属性还是源属性,只要发生了更改,TwoWay 就会更新目标属性或源属性。
OneWay 仅当源属性发生更改时更新目标属性。
OneTime 仅当应用程序启动时或 DataContext 进行更改时更新目标属性。
OneWayToSource 在目标属性更改时更新源属性。
Default:模式根据实际情况来定,如果是可编辑的就是TwoWay,只读的就是OneWay.
OneWay 仅当源属性发生更改时更新目标属性。
OneTime 仅当应用程序启动时或 DataContext 进行更改时更新目标属性。
OneWayToSource 在目标属性更改时更新源属性。
Default:模式根据实际情况来定,如果是可编辑的就是TwoWay,只读的就是OneWay.
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