我有一个aspx页面，其中有一个父页面xyz.aspx页面，其中<head>标记中提到了一个js文件（abc.js）。我需要根据某些条件在加载的子aspx页面中调用abc.js中编写的方法。我想知道如何在document.ready（）/ window.onload下的子aspx页面中调用此函数。
我尝试在script标签下使用parent.methodname（）但它没有用。 以下是代码的样子：
<script type="text/javascript">
function getParameterByName(name) {
name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);
return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}
$(window).load(function () {
var flgInsidePresentation = getParameterByName("flgInsidePresentation");
if (flgInsidePresentation) { parent.updateButtons(null, 2, 1); }
});
</script>
如果我在我的控制台中只写了Parent，我会得到父页面（xyz.aspx），其中<head>标记下提到了js文件。
PS：我必须从我的child.aspx页面的deck.navigation.js文件中调用updateButtons方法
(function($, undefined) {
var $document = $(document);
/* Updates link hrefs, and disabled states if last/first slide */
var updateButtons = function(event, from, to) {
var options = $.deck('getOptions');
var lastIndex = $.deck('getSlides').length - 1;
var $prevSlide = $.deck('getSlide', to - 1);
var $nextSlide = $.deck('getSlide', to + 1);
var hrefBase = window.location.href.replace(/#.*/, '');
var prevId = $prevSlide ? $prevSlide.attr('id') : undefined;
var nextId = $nextSlide ? $nextSlide.attr('id') : undefined;
var $prevButton = $(options.selectors.previousLink);
var $nextButton = $(options.selectors.nextLink);
$prevButton.toggleClass(options.classes.navDisabled, to === 0);
$prevButton.attr('aria-disabled', to === 0);
$prevButton.attr('href', hrefBase + '#' + (prevId ? prevId : ''));
$nextButton.toggleClass(options.classes.navDisabled, to === lastIndex);
$nextButton.attr('aria-disabled', to === lastIndex);
$nextButton.attr('href', hrefBase + '#' + (nextId ? nextId : ''));
};
/*
Extends defaults/options.
options.classes.navDisabled
This class is added to a navigation link when that action is disabled.
It is added to the previous link when on the first slide, and to the
next link when on the last slide.
options.selectors.nextLink
The elements that match this selector will move the deck to the next
slide when clicked.
options.selectors.previousLink
The elements that match this selector will move to deck to the previous
slide when clicked.
*/
$.extend(true, $.deck.defaults, {
classes: {
navDisabled: 'deck-nav-disabled'
},
selectors: {
nextLink: '.deck-next-link',
previousLink: '.deck-prev-link'
}
});
$document.bind('deck.init', function() {
var options = $.deck('getOptions');
var slides = $.deck('getSlides');
var $current = $.deck('getSlide');
var $prevButton = $(options.selectors.previousLink);
var $nextButton = $(options.selectors.nextLink);
var index;
// Setup prev/next link events
$prevButton.unbind('click.decknavigation');
$prevButton.bind('click.decknavigation', function(event) {
$.deck('prev');
event.preventDefault();
});
$nextButton.unbind('click.decknavigation');
$nextButton.bind('click.decknavigation', function(event) {
$.deck('next');
event.preventDefault();
});
// Find where we started in the deck and set initial states
$.each(slides, function(i, $slide) {
if ($slide === $current) {
index = i;
return false;
}
});
updateButtons(null, index, index);
});
$document.bind('deck.change', updateButtons);
})(jQuery);
如果有其他方式，请告诉我。感谢您的帮助。
答案 0 :(得分：0)
看一下这个问题Calling a parent window function from an iframe。我相信你会找到你的回答。如果没有，请确保您的父网页和iframe使用相同的网址 - 请检查此答案https://stackoverflow.com/a/14948796/2138959。
修改
在代码示例中，您发布的updateButtons函数是在匿名函数的范围内定义的，并且在全局范围内不可用。如果你想让它可用，你应该改为：
(function($, global, undefined) {
var $document = $(document);
/* Updates link hrefs, and disabled states if last/first slide */
global.updateButtons = function(event, from, to) {
...
};
...
})(jQuery, window);
答案 1 :(得分：0)
问题是您的updateButtons函数位于私有范围内。 看起来你正在构建一个jQuery插件，所以最简单的解决方法是将窗口添加到范围并将函数附加到该
(function($, window, undefined) {
var $document = $(document);
/* Updates link hrefs, and disabled states if last/first slide */
window.updateButtons = function(event, from, to) {
//your code
};
})(jQuery, window);
然后调用iframe中的函数
window.parent.updateButtons()
答案 2 :(得分：0)
实际上你正确地调用了这个方法。 parent.MethodName应该可以工作
我认为问题出在“$（window）.load（function（）{}）”，它应该像window.onload = function（）{//这里的代码; }
<script type="text/javascript">
function getParameterByName(name) {
name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);
return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}
window.onload = function () {
var flgInsidePresentation = getParameterByName("flgInsidePresentation");
if (flgInsidePresentation) { parent.updateButtons(null, 2, 1); }
};
还要确保 updateButtons 正常运行
答案 3 :(得分：0)
(function($, undefined) {
var $document = $(document);
/* Updates link hrefs, and disabled states if last/first slide */
var updateButtons = function(event, from, to) {
var options = $.deck('getOptions');
var lastIndex = $.deck('getSlides').length - 1;
var $prevSlide = $.deck('getSlide', to - 1);
var $nextSlide = $.deck('getSlide', to + 1);
var hrefBase = window.location.href.replace(/#.*/, '');
var prevId = $prevSlide ? $prevSlide.attr('id') : undefined;
var nextId = $nextSlide ? $nextSlide.attr('id') : undefined;
var $prevButton = $(options.selectors.previousLink);
var $nextButton = $(options.selectors.nextLink);
$prevButton.toggleClass(options.classes.navDisabled, to === 0);
$prevButton.attr('aria-disabled', to === 0);
$prevButton.attr('href', hrefBase + '#' + (prevId ? prevId : ''));
$nextButton.toggleClass(options.classes.navDisabled, to === lastIndex);
$nextButton.attr('aria-disabled', to === lastIndex);
$nextButton.attr('href', hrefBase + '#' + (nextId ? nextId : ''));
};
/*
Extends defaults/options.
options.classes.navDisabled
This class is added to a navigation link when that action is disabled.
It is added to the previous link when on the first slide, and to the
next link when on the last slide.
options.selectors.nextLink
The elements that match this selector will move the deck to the next
slide when clicked.
options.selectors.previousLink
The elements that match this selector will move to deck to the previous
slide when clicked.
*/
$.extend(true, $.deck.defaults, {
classes: {
navDisabled: 'deck-nav-disabled'
},
selectors: {
nextLink: '.deck-next-link',
previousLink: '.deck-prev-link'
}
});
$document.bind('deck.init', function() {
var options = $.deck('getOptions');
var slides = $.deck('getSlides');
var $current = $.deck('getSlide');
var $prevButton = $(options.selectors.previousLink);
var $nextButton = $(options.selectors.nextLink);
var index;
// Setup prev/next link events
$prevButton.unbind('click.decknavigation');
$prevButton.bind('click.decknavigation', function(event) {
$.deck('prev');
event.preventDefault();
});
$nextButton.unbind('click.decknavigation');
$nextButton.bind('click.decknavigation', function(event) {
$.deck('next');
event.preventDefault();
});
// Find where we started in the deck and set initial states
$.each(slides, function(i, $slide) {
if ($slide === $current) {
index = i;
return false;
}
});
updateButtons(null, index, index);
});
$document.bind('deck.change', updateButtons);
})(jQuery);
在上文中，您要使用function关键字声明var。它的范围仅在函数内部，您只能通过$访问它。
要改变它，
执行以下操作
(function($, undefined) {
var $document = $(document);
/* Updates link hrefs, and disabled states if last/first slide */
window.updateButtons = function(event, from, to) {
var options = $.deck('getOptions');
var lastIndex = $.deck('getSlides').length - 1;
var $prevSlide = $.deck('getSlide', to - 1);
var $nextSlide = $.deck('getSlide', to + 1);
var hrefBase = window.location.href.replace(/#.*/, '');
var prevId = $prevSlide ? $prevSlide.attr('id') : undefined;
var nextId = $nextSlide ? $nextSlide.attr('id') : undefined;
var $prevButton = $(options.selectors.previousLink);
var $nextButton = $(options.selectors.nextLink);
$prevButton.toggleClass(options.classes.navDisabled, to === 0);
$prevButton.attr('aria-disabled', to === 0);
$prevButton.attr('href', hrefBase + '#' + (prevId ? prevId : ''));
$nextButton.toggleClass(options.classes.navDisabled, to === lastIndex);
$nextButton.attr('aria-disabled', to === lastIndex);
$nextButton.attr('href', hrefBase + '#' + (nextId ? nextId : ''));
};
/*
Extends defaults/options.
options.classes.navDisabled
This class is added to a navigation link when that action is disabled.
It is added to the previous link when on the first slide, and to the
next link when on the last slide.
options.selectors.nextLink
The elements that match this selector will move the deck to the next
slide when clicked.
options.selectors.previousLink
The elements that match this selector will move to deck to the previous
slide when clicked.
*/
$.extend(true, $.deck.defaults, {
classes: {
navDisabled: 'deck-nav-disabled'
},
selectors: {
nextLink: '.deck-next-link',
previousLink: '.deck-prev-link'
}
});
$document.bind('deck.init', function() {
var options = $.deck('getOptions');
var slides = $.deck('getSlides');
var $current = $.deck('getSlide');
var $prevButton = $(options.selectors.previousLink);
var $nextButton = $(options.selectors.nextLink);
var index;
// Setup prev/next link events
$prevButton.unbind('click.decknavigation');
$prevButton.bind('click.decknavigation', function(event) {
$.deck('prev');
event.preventDefault();
});
$nextButton.unbind('click.decknavigation');
$nextButton.bind('click.decknavigation', function(event) {
$.deck('next');
event.preventDefault();
});
// Find where we started in the deck and set initial states
$.each(slides, function(i, $slide) {
if ($slide === $current) {
index = i;
return false;
}
});
updateButtons(null, index, index);
});
$document.bind('deck.change', updateButtons);
})(jQuery);
现在该函数被声明为全局。
您可以使用parent.updateButtons(null, 2, 1);