EasyUI Datagrid 鼠标悬停显示单元格内容

第一种方式：
.js 定义函数
  <script type="text/javascript">
        //格式化单元格提示信息
        function formatCellTooltip(value){
            return "<span title='" + value + "'>" + value + "</span>";
        }
  </script>  

、调用函数

 <table class="easyui-datagrid" style="width:400px;height:250px"
    data-options="url:'datagrid_data.json',fitColumns:true,singleSelect:true">
    <thead>
    　　<tr>
　　　　　　<th data-options="field:'itemid',width:80,halign:'center',formatter:formatCellTooltip">Item ID</th>
    　　</tr>
    </thead>
 </table>

源码：jquery-easyui-1.3.6.zip    例子是：jquery-easyui-1.3.6\demo\datagrid\formatter.html

 第二种方式：
1.html
<table id="dg">
</table>

2.js
$('#dg').datagrid({
            fitColumns: true,
            nowrap: true,
            striped: true,
            rownumbers: true,
            pagination: true,
            singleSelect: true,
            columns: [[
            { field: "itemid", title: 'Item ID', width:,halign:'center', formatter: function (value) {
                return "<span title='" + value + "'>" + value + "</span>";
            }
            }]]
       });

源码：jquery-easyui-1.3.6.zip 例子是：jquery-easyui-1.3.6\demo\datagrid\formatter2.html

其他方式：

1.例如，扩展 jQuery EasyUI tips

js 文件 Jquery.easyui.tooltip.js：

(function ($) {
    function init(target) {
        var opt = $.data(target, "tips").options;
        var tips = $(".easyui-tips-hover");
        if (tips.length == ) {
            tips = $("<div/>").css({
                "position": "absolute",
                "border-radius": "5px",
                "-webkit-border-radius": "5px",
                "-moz-border-radius": "5px",
                "padding": "5px",
                "background": "#fff",
                "display": "none",
                "border": "1px solid gray"
            }).hide().addClass("easyui-tips-hover").addClass(opt.cls);
        }

        opt.content = (opt.content || $(target).attr("tooltip"));
        tips.appendTo("body");

        $(target).css("color", opt.wrapColor);

        $(target).hover(function () {
            tips.html(opt.content);
            var offset = $(target).offset();
            //var outerWidth = tips.outerWidth();
            //            if (outerWidth > 200) {
            //                tips.width(200);
            //            }
            var scrollTop = $(document).scrollTop();
            var tipsHeight = tips.outerHeight();
            var outerWidth = tips.outerWidth();

            var targetHeight = $(target).outerHeight();
            var top = offset.top - tipsHeight;
            var left = offset.left;

            if ((offset.top - scrollTop) < top || top < ) {
                top = offset.top + targetHeight;
            }
            var bodyClienWidth = $("body")[].clientWidth;
            if ((bodyClienWidth - left) < outerWidth) {
                left = bodyClienWidth - outerWidth;
            }
            tips.css({ top: top, left: left }).show();
        }, function () {
            tips.hide().width("auto");
        });
    }

    $.fn.tips = function (options, params) {
        if (typeof options === 'string') {
            return $(this).tips.methods[options].call(this, params);
        }

        options = options || {};
        return this.each(function () {
            var opt = $.data(this, "tips");
            if (opt) {
                $.extend(opt.options, options);
            } else {
                $.data(this, "tips", {
                    options: $.extend({}, $.fn.tips.defaults, options)
                });
                init(this);
            }
        });
    };

    $.fn.tips.defaults = {
        cls: "",
        content: null,
        wrapColor: "blue"
    };

    if ($.parser) {
        $.parser.plugins.push('tips')
    }
})(jQuery);

使用:

在jquery 的datagrid的onLoadSuccess方法中

html:

<table id="dg"></table>

js :

$(function () {
            var _grid = $('#dg').datagrid({
                url: 'products.json',
                columns: [[
            { field: 'productid', title: 'productid', width:  },
            { field: 'productname', title: 'productname', width:  },
            { field: 'price', title: 'Price', width: , align: 'right' }
            ]],
                onLoadSuccess: function () {

                    var tableTd = $('div.datagrid-body td[field="productname"]'); //productname是列名
                    tableTd.each(function () {
                        var $this = $(this);
                        var index = $this.parent('tr').attr('datagrid-row-index');
                        var rows = _grid.datagrid('getRows');
                        var currentRow = rows[index];
                        var content = '<div style=" max-width:700px;word-break: break-all; word-wrap: break-word;">' + currentRow.productname + '</div>'; //productname是列名
                        $this.tips({ content: content, wrapColor: 'black' });
                    });
                }
            });
        });

源码：jquery-easyui-1.3.6.zip    例子是：jquery-easyui-1.3.6\demo\datagrid\tips.html

2.当然还有各种jQuery tips插件