剔除中的UniqueID绑定 [英] UniqueID binding in knockout

问题描述

我正在尝试弄清楚如何复制唯一名称的功能绑定元素的ID(以获取

I'm trying to figure out how to duplicate the functionality of the Unique Name binding for an element's ID (to get pretty validation working)

ko.bindingHandlers.uniqueID = {
   'init': function (element, valueAccessor) {
        if (valueAccessor()) {
            element.ID = "ko_unique_" + (++ko.bindingHandlers['uniqueName'].currentIndex);
        }
    }
};

推荐答案

uniqueName的删除源是

The knockout source for uniqueName is

ko.bindingHandlers['uniqueName'] = {
    'init': function (element, valueAccessor) {
        if (valueAccessor()) {
            element.name = "ko_unique_" + (++ko.bindingHandlers['uniqueName'].currentIndex);

            // Workaround IE 6 issue - http://www.matts411.com/post/setting_the_name_attribute_in_ie_dom/
            if (ko.utils.isIe6)
                element.mergeAttributes(document.createElement("<input name='" + element.name + "'/>"), false);
        }
    }
};
ko.bindingHandlers['uniqueName'].currentIndex = 0;

所以我认为您应该有这个(注意ID应该是id，删除IE6内容，并将uniqueName更改为uniqueId)

So I think you should have this (note ID should be id, IE6 stuff removed, and uniqueName changed to uniqueId)

ko.bindingHandlers['uniqueId'] = {
    'init': function (element, valueAccessor) {
        if (valueAccessor()) {
            element.id = "ko_unique_" + (++ko.bindingHandlers['uniqueId'].currentIndex);           
        }
    }
};
ko.bindingHandlers['uniqueId'].currentIndex = 0;

这篇关于剔除中的UniqueID绑定的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！