I m using knockout-2.0.0. I ve got a button, textbox, and a viewmodel. I am disabling the Save button if there is no text in the textbox.
0">Save
This all works fine except that it requires the user to click on another part of the page to make the save button enable/disable. i.e. it does not happen as soon as the user starts typing (or deletes all the text).
难道没有这样做吗?
提前感谢。
它应当向您提供最新信息:对约束力的“紧接”信息,从Knockout网站看这一例子,说明这种行为:
如果你重新使用<条码>价值具有约束力的手稿,那么你可以使用<条码> 值Update,在增订时加以修改。 您可将其改为keyup,而不是缺损change。 http://knockoutjs.com/documentation/ Value- binding.html>rel=“nofollow”>Documentation/a>。
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