Question

这几乎是前一个问题的延续。 Problem showing jqgrid with dynamic column binding

我正在尝试为下面的列添加自定义格式化程序。但没有任何反应。请帮忙。

JSP：

   <html xmlns="http://www.w3.org/1999/xhtml">
  <head>
  <script type="text/javascript"> 
  $(document).ready(function() {
  $.ajax( {
    type : "GET",
    url : "interFinalTbaAction",
    data : "",
    dataType : "json",
    success : function(result) {
        var colD = result.couponStripList, colM = result.colModelList;
        jQuery("#InterFinalTBAGrid").jqGrid( {
            data : colD.rootVar,
            datatype : 'local',
            gridview : true,
            colModel : colM,
            loadComplete : function(data) {
            },
            loadError : function(xhr, status, error) {
                alert('grid loading error');
            }
        });
    },
    error : function(x, e) {
        alert(x.readyState + " " + x.status + " " + e.msg);
    }
});
  });
 </script>
 </head>
 <body>
 <table id="InterFinalTBAGrid">
<tr>
    <td />
</tr>
 </table>
 </body>
 </html>

来自行动的JSON结果：

 {
"colModelList": [
    {
        "formatter": "CouponFormatter",
        "index": 0,
        "jsonmap": null,
        "key": false,
        "label": "Coupon",
        "name": "coupon",
        "resizable": true,
        "search": true,
        "sortable": false,
        "title": true,
        "width": 100
    },
    {
        "formatter": "InterFinalPriceFormatter",
        "index": 1,
        "jsonmap": null,
        "key": false,
        "label": "03-10-11",
        "name": "prceCM",
        "resizable": true,
        "search": true,
        "sortable": false,
        "title": true,
        "width": 150
    },
    {
        "formatter": "InterFinalPriceFormatter",
        "index": 2,
        "jsonmap": null,
        "key": false,
        "label": "04-13-11",
        "name": "prceCMPlusOne",
        "resizable": true,
        "search": true,
        "sortable": false,
        "title": true,
        "width": 150
    },
    {
        "formatter": "InterFinalPriceFormatter",
        "index": 3,
        "jsonmap": null,
        "key": false,
        "label": "05-12-11",
        "name": "prceCMPlusTwo",
        "resizable": true,
        "search": true,
        "sortable": false,
        "title": true,
        "width": 150
    },
    {
        "formatter": "InterFinalPriceFormatter",
        "index": 4,
        "jsonmap": null,
        "key": false,
        "label": "06-13-11",
        "name": "prceCMPlusThree",
        "resizable": true,
        "search": true,
        "sortable": false,
        "title": true,
        "width": 150
      }
   ],
   "couponStripList": {
    "rootVar": [
        {
            "coupon": 5.0,
            "prceCM": "103.734375,103.734375",
            "prceCMPlusOne": "103.359375,99.03",
            "prceCMPlusThree": "102.671875,102.671875",
            "prceCMPlusTwo": "103.015625,103.015625"
        },
        {
            "coupon": 5.5,
            "prceCM": "105.984375,105.984375",
            "prceCMPlusOne": "105.671875,99.2",
            "prceCMPlusThree": "105.046875,105.046875",
            "prceCMPlusTwo": "105.359375,105.359375"
        }

    ]
   },
   "deliveredDataTimestamp": "03-02-11 11:52:57",
   "requestedTimestamp": null
   }

格式化程序的Javascript函数：

  function CouponFormatter(cellValue, opts, rowObject) {
return cellValue + "Testing coupon formatter";
   }

function InterFinalPriceFormatter(cellValue, opts, rowObject) {
return cellValue + "Testing price formatter";
}

Answer 1

如果您使用

"formatter": "InterFinalPriceFormatter"

您没有将“formatter”属性的值设置为函数。

解决问题的一种方法是遍历result.colModelList并验证是否使用“formatter”属性，其中包含一些字符串值，您将其作为JavaScript中的函数实现。然后，您可以使用相应格式化程序函数的值覆盖该属性。

另一种方法是在格式化程序中使用内联函数：

"formatter": "function (cellValue, opts, rowObject) { return cellValue + \"Testing price formatter\"; }"

在这种情况下，您将无法清楚地分离代码和网格参数，但是您会在网格中收到格式化程序的一些封装。

更新：我希望下一个代码片段（未经测试）可以在第一种实现方式下明确我的意思

var functionsMapping = {
    // here we define the implementations of the custom formatter which we use
    "CouponFormatter": function (cellValue, opts, rowObject) {
        return cellValue + "Testing coupon formatter";
    },
    "InterFinalPriceFormatter": function (cellValue, opts, rowObject) {
        return cellValue + "Testing price formatter";
    }
};
$.ajax({
    type: "POST",
    url: "interFinalTbaAction.action",
    data: "",
    dataType: "json",
    success: function(result) {
        var i, cm, colD = result.couponStripList,
            colN = result.columnNames,
            colM = result.colModelList;
        for (i=0;i<colM.length,i++) {
            cm = colM[i];
            if (cm.hasOwnProperty("formatter") &&
                functionsMapping.hasOwnProperty(cm.formatter)) {
                // fix colM[i].formatter from string to the function
                cm.formatter = functionsMapping[cm.formatter];
            }
        }
        jQuery("#dataGrid").jqGrid({/* all parameters from your code */});
    },         
    error: function(jqXHR, textStatus, errorThrown){
        alert("Error Occured!" + " | " + jqXHR.responseText + " | " +
              textStatus + " | " + errorThrown);
    }
});

更新2 最好注册自定义格式化程序和非格式化程序标准格式化程序，如the old answer中所述或在answer one。之后，可以使用"formatter": "InterFinalPriceFormatter"之类的语法，jqGrid将自动调用自定义函数$.fn.fmatter.InterFinalPriceFormatter和$.fn.fmatter.InterFinalPriceFormatter.unformat。

如何使用动态列绑定为jqgrid添加自定义Formatter

1 个答案: