你如何在Javascript中动态创建一个可在所有浏览器中工作的单选按钮？

使用例如动态创建单选按钮

var radioInput = document.createElement('input');
radioInput.setAttribute('type', 'radio');
radioInput.setAttribute('name', name);

在Firefox中工作，但不在IE中。 为什么不？

---

从帕特里克建议的步骤开始，使用临时节点，我们可以摆脱try / catch：

function createRadioElement(name, checked) {
    var radioHtml = '<input type="radio" name="' + name + '"';
    if ( checked ) {
        radioHtml += ' checked="checked"';
    }
    radioHtml += '/>';

    var radioFragment = document.createElement('div');
    radioFragment.innerHTML = radioHtml;

    return radioFragment.firstChild;
}

---

根据这篇文章及其评论：http://cf-bill.blogspot.com/2006/03/another-ie-gotcha-dynamiclly-created.html

以下着作。 显然问题是你不能在IE中动态设置name属性。 我也发现你不能动态设置checked属性。

function createRadioElement( name, checked ) {
    var radioInput;
    try {
        var radioHtml = '<input type="radio" name="' + name + '"';
        if ( checked ) {
            radioHtml += ' checked="checked"';
        }
        radioHtml += '/>';
        radioInput = document.createElement(radioHtml);
    } catch( err ) {
        radioInput = document.createElement('input');
        radioInput.setAttribute('type', 'radio');
        radioInput.setAttribute('name', name);
        if ( checked ) {
            radioInput.setAttribute('checked', 'checked');
        }
    }

    return radioInput;
}

---

下面是一个更通用的解决方案的例子，该方案先检测IE并处理其他属性IE也有问题，从DOMBuilder中提取：

var createElement = (function()
{
    // Detect IE using conditional compilation
    if (/*@cc_on @*//*@if (@_win32)!/*@end @*/false)
    {
        // Translations for attribute names which IE would otherwise choke on
        var attrTranslations =
        {
            "class": "className",
            "for": "htmlFor"
        };

        var setAttribute = function(element, attr, value)
        {
            if (attrTranslations.hasOwnProperty(attr))
            {
                element[attrTranslations[attr]] = value;
            }
            else if (attr == "style")
            {
                element.style.cssText = value;
            }
            else
            {
                element.setAttribute(attr, value);
            }
        };

        return function(tagName, attributes)
        {
            attributes = attributes || {};

            // See http://channel9.msdn.com/Wiki/InternetExplorerProgrammingBugs
            if (attributes.hasOwnProperty("name") ||
                attributes.hasOwnProperty("checked") ||
                attributes.hasOwnProperty("multiple"))
            {
                var tagParts = ["<" + tagName];
                if (attributes.hasOwnProperty("name"))
                {
                    tagParts[tagParts.length] =
                        ' name="' + attributes.name + '"';
                    delete attributes.name;
                }
                if (attributes.hasOwnProperty("checked") &&
                    "" + attributes.checked == "true")
                {
                    tagParts[tagParts.length] = " checked";
                    delete attributes.checked;
                }
                if (attributes.hasOwnProperty("multiple") &&
                    "" + attributes.multiple == "true")
                {
                    tagParts[tagParts.length] = " multiple";
                    delete attributes.multiple;
                }
                tagParts[tagParts.length] = ">";

                var element =
                    document.createElement(tagParts.join(""));
            }
            else
            {
                var element = document.createElement(tagName);
            }

            for (var attr in attributes)
            {
                if (attributes.hasOwnProperty(attr))
                {
                    setAttribute(element, attr, attributes[attr]);
                }
            }

            return element;
        };
    }
    // All other browsers
    else
    {
        return function(tagName, attributes)
        {
            attributes = attributes || {};
            var element = document.createElement(tagName);
            for (var attr in attributes)
            {
                if (attributes.hasOwnProperty(attr))
                {
                    element.setAttribute(attr, attributes[attr]);
                }
            }
            return element;
        };
    }
})();

// Usage
var rb = createElement("input", {type: "radio", checked: true});

完整的DOMBuilder版本还处理事件监听器注册和子节点的指定。

链接地址: http://www.djcxy.com/p/3733.html

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