jqGrid中的单元格数据条 - 可能与否？

Question

我一般不喜欢使用Excel和Microsoft产品,但Excel 2007/2010有一些非常好的条件格式化功能,遗憾的是,到目前为止我还没有在其他许多地方看到过.我在商业报告中广泛使用的其中一个是数据栏. http://blogs.msdn.com/b/excel/archive/2009/08/07/data-bar-improvements-in-excel-2010.aspx

在我看来,这些数据栏非常有助于理解数字之外的数据含义.虽然200到2000个用户之间的差异只是人眼难以理解的数字,但是长10倍的条形更加直观.

我的问题:有没有办法在jqGrid中为列的每个值包含单元格条件数据条,镜像Excel功能？这是我看到摆脱Excel工作表并在在线报告系统中实施报告的唯一方法.一旦您习惯了数据栏,它们就是必不可少的,而且它们是我们仍然使用Excel进行报告的唯一原因.

如果我假设在jqGrid中没有这样的内置功能,你认为自定义构建它会有很多工作吗？你有任何想法,最好的办法是什么？

Answer 1

这是您在问题中写的Excel的一个有趣特性.我以前对此一无所知.

您需要的是实现自定义格式化程序功能.一般来说很容易.您应该编写一个小函数,根据值(颜色条上的文本)显示单元格.此外,您还应该定义Unformatting自定义功能,这在您的情况下非常容易.在排序和其他jqGrid操作期间可以使用无格式函数,其中需要从网格单元获取值.

所以你的问题可以减少到在彩条上显示数字.

更新:我一次又一次地谈论你的问题,因为我发现使用颜色来形成数字可能真的很有帮助.所以我花了一些时间并创建了相应的代码示例,产生了以下结果

并且可以看到住在这里.

对代码的小评论.我必须创建一些CSS类,它们可以在任何当前浏览器中生成渐变条,除了Opera,网格被视为

CSS类定义如下:

.cellDiv 
{
    left: 0px; top:5px; height:22px;
    position:relative;padding:0;margin-right:-4px;border:0;
}
.cellTextRight
{
    position:relative;
    margin-right:4px;
    text-align:right;
    float:right;
}
.gradient1{
    /* fallback (Opera) */
    background: #008AEF;
    /* Mozilla: https://developer.mozilla.org/en/CSS/-moz-linear-gradient */
    background: -moz-linear-gradient(left, #008AEF, white);
    /* Chrome, Safari: http://webkit.org/blog/175/introducing-css-gradients/ */
    background: -webkit-gradient(linear, left top, right top, from(#008AEF), to(white));
    /* MSIE http://msdn.microsoft.com/en-us/library/ms532997(VS.85).aspx */
    filter: progid:DXImageTransform.Microsoft.Gradient(StartColorStr='#008AEF', EndColorStr='white', GradientType=1);
    /*ie8*/
    -ms-filter: "progid:DXImageTransform.Microsoft.Gradient(StartColorStr='#008AEF', EndColorStr='white', GradientType=1)";
    position: absolute; left: -2px; top:-5px; right: 2px; height:22px; float:left;
}
.gradient2{
    background: #63C384;
    background: -moz-linear-gradient(left, #63C384 0%, white 100%);
    background: -webkit-gradient(linear, left top, right top, from(#63C384), to(white));
    filter: progid:DXImageTransform.Microsoft.Gradient(StartColorStr='#63C384', EndColorStr='white', GradientType=1);
    -ms-filter: "progid:DXImageTransform.Microsoft.Gradient(StartColorStr='#63C384', EndColorStr='white', GradientType=1)";
    position: absolute; left: -2px; top:-5px; right: 2px; height:22px; float:left;
}

和jqGrid代码里面$(document).ready(function () {/*code*/});:

var grid = $("#list");
var gradientNumberFormat = function (cellvalue, gradientClass, minDataValue,
                                 maxDataValue, minDisplayValue, maxDisplayValue) {
    var dataAsNumber = parseFloat(cellvalue); /* parseInt(cellvalue, 10);*/
    if (dataAsNumber > maxDataValue) {
        dataAsNumber = maxDataValue;
    }
    if (dataAsNumber < minDataValue) {
        dataAsNumber = minDataValue;
    }
    var prozentVal = minDisplayValue+(dataAsNumber-minDataValue)*(maxDisplayValue-
                                      minDisplayValue)/(maxDataValue-minDataValue);
    return '<div class="cellDiv"><div class="'+gradientClass+'" style="width:'+
            prozentVal+'%;"></div><div class="cellTextRight">'+cellvalue +
            '</div></div>';
};
var mydata = [
    { id: "1",  invdate: "2007-10-01", name: "test",  note: "note",
      amount: "200.00", tax: "10.00", total: "210.00" },
    { id: "2",  invdate: "2007-10-02", name: "test2", note: "note2",
      amount: "300.00", tax: "20.00", total: "320.00" },
    { id: "3",  invdate: "2007-09-01", name: "test3", note: "note3",
      amount: "400.00", tax: "30.00", total: "430.00" },
    { id: "4",  invdate: "2007-10-04", name: "test",  note: "note",
      amount: "200.00", tax: "10.00", total: "210.00" },
    { id: "5",  invdate: "2007-10-05", name: "test2", note: "note2",
      amount: "300.00", tax: "20.00", total: "320.00" },
    { id: "6",  invdate: "2007-09-06", name: "test3", note: "note3",
      amount: "400.00", tax: "30.00", total: "430.00" },
    { id: "7",  invdate: "2007-10-04", name: "test",  note: "note",
      amount: "200.00", tax: "10.00", total: "210.00" },
    { id: "8",  invdate: "2007-10-03", name: "test2", note: "note2",
      amount: "300.00", tax: "20.00", total: "320.00" },
    { id: "9",  invdate: "2007-09-01", name: "test3", note: "note3",
      amount: "400.00", tax: "30.00", total: "430.00" },
    { id: "10", invdate: "2007-10-01", name: "test",  note: "note",
      amount: "200.00", tax: "10.00", total: "210.00" },
    { id: "11", invdate: "2007-10-02", name: "test2", note: "note2",
      amount: "300.00", tax: "20.00", total: "320.00" },
    { id: "12", invdate: "2007-09-01", name: "test3", note: "note3",
      amount: "400.00", tax: "30.00", total: "430.00" },
    { id: "13", invdate: "2007-10-04", name: "test",  note: "note",
      amount: "200.00", tax: "10.00", total: "210.00" },
    { id: "14", invdate: "2007-10-05", name: "test2", note: "note2",
      amount: "300.00", tax: "20.00", total: "320.00" },
    { id: "15", invdate: "2007-09-06", name: "test3", note: "note3",
      amount: "400.00", tax: "30.00", total: "430.00" },
    { id: "16", invdate: "2007-10-04", name: "test",  note: "note",
      amount: "200.00", tax: "10.00", total: "210.00" },
    { id: "17", invdate: "2007-10-03", name: "test2", note: "note2",
      amount: "300.00", tax: "20.00", total: "320.00" },
    { id: "18", invdate: "2007-09-01", name: "test3", note: "note3",
      amount: "400.00", tax: "30.00", total: "430.00" }
];
grid.jqGrid({
    data: mydata,
    datatype: "local",
    colNames: ['Inv No', 'Date', 'Client', 'Amount', 'Tax', 'Total', 'Notes'],
    colModel: [
        { name:'id', index:'id', key:true, width:70, align:"right", sorttype:"int",
            formatter: function (cellvalue) {
                // the number 1  will be mapped to no color bar
                // the number 18 will be mapped to the color bar with 100% filled
                return gradientNumberFormat(cellvalue, "gradient1", 1, 18, 0, 100);
            }
        },
        { name:'invdate', index:'invdate', width:90, sorttype:"date" },
        { name:'name', index:'name', width:100 },
        { name:'amount', index:'amount', width:80, align:"right", sorttype:"float",
            formatter: function (cellvalue) {
                // the number 200 will be mapped to the 10% filled color bar
                // the number 400 will be mapped to the 90% filled color bar
                return gradientNumberFormat(cellvalue,"gradient2",200,400,10,90);
            }
        },
        { name:'tax', index:'tax', width:80, align:"right", sorttype:"float" },
        { name:'total', index:'total', width:80, align:"right", sorttype:"float" },
        { name:'note', index:'note', width:150, sortable:false }
    ],
    pager: '#pager',
    rowNum: 10,
    rowList: [5, 10, 20, 50],
    sortname: 'id',
    sortorder: 'desc',
    viewrecords: true,
    height: "100%",
    caption: "Numbers with gradient color"
});
grid.jqGrid('navGrid', '#pager',
            { add:false, edit:false, del:false, search:false, refresh:true });

更新:演示的实际版本在这里.