jquery常用表单操作

Posted 2020-10-14 York

//js将表单序列化成对象
$.fn.serializeObject = function () {
    var $els = $(this).find("[name]");
    var formData = {};
    var len = $els.length;
    for (var i = 0; i < len; i++) {
        var $item = $($els[i]);
        var name = $item.attr("name");
        var type = $item.attr("type");
        if (type == "checkbox") {
            formData[name] = $item.is(‘:checked‘);
        }
        else
        {
            formData[name] = $item.val();
        }
    }
    return formData;
};



/*根据name给子元素的Text赋值*/
$.fn.SetChildsText = function (model) {
    var el = this.find("[name]");
    var elCount = el.length;
    if (elCount > 0) {
        for (var i = 0; i < elCount; i++) {
            $itemEl = $(el[i]);
            var name = $itemEl.attr("name");
            var formatterFun = $itemEl.attr("data-formatter");
            var value = model[name];
            if (value != null) {
                if (typeof (window[formatterFun]) == "function") {
                    value = window[formatterFun](value);
                }
                $itemEl.text(value);
            }
            else {
                $itemEl.text("");
            }
        }
    }
};

/*获取查询参数*/
function GetQueryString(name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if (r != null) return unescape(r[2]); return null;
}

/**
 * 绑定下拉框
 * @param {any} selId:下拉框Id
 * @param {any} url
 * @param {any} idField
 * @param {any} valueField
 * @param {any} initValue:初始值
 */
function BindSelect(selId, url, idField, valueField, initValue) {
    $.get(url, function (data) {
        var len = data.length;
        var selItems = [];
        for (var i = 0; i < len; i++) {
            selItems.push(‘<option value="‘ + data[i][idField] + ‘">‘ + data[i][valueField] + ‘</option>‘);
        }
        $("#" + selId).append(selItems);
        if (initValue) {
            $("#" + selId).val(initValue);
        }
    });
}



/*表单赋值*/
function FormLoad(formId, data) {
    var $form = $("#" + formId);
    $.each(data, function (name, ival) {
        var $oinput = $form.find("input[name=" + name + "]");
        if ($oinput.attr("type") == "radio" || $oinput.attr("type") == "checkbox") {
            $oinput.each(function () {
                if (Object.prototype.toString.apply(ival) == ‘[object Array]‘) {// 是复选框，并且是数组
                    for (var i = 0; i < ival.length; i++) {
                        if ($(this).val() == ival[i])
                            $(this).attr("checked", "checked");
                    }
                } else {
                    if ($(this).val() == ival)
                        $(this).attr("checked", "checked");
                }
            });
        } else if ($oinput.attr("type") == "textarea") {// 多行文本框
            $form.find("[name=" + name + "]").html(ival);
        } else {
            $form.find("[name=" + name + "]").val(ival);
        }
    });
}