免费JqGrid-网格不刷新

我有一个组合框，当选择更改时，关联的网格将重新填充新数据

<div class="container-fluid">
        <div class="row">
            <div class="col-md-4">
                <select id="Subcontractors"
                        data-bind="options: Subcontractors, optionsText: 'Subcontractor', optionsValue: 'ContractSubcontractorId', value: selectedSubcontractor, optionsCaption: '<-- Select Subcontractor -->', event:{ change: subcontractorChanged}"
                        class="form-control"></select>
            </div>
        </div>
    </div>
    <div id="containerGrid">
        <div id="divLoading" class="jqgrid-fluid-width divLoading has-error"></div>
        <table id="grid" class="grid"></table>
        <div id="pager"></div>
    </div>

因此，当我想要重新填充网格时，getGrid中的回调函数是reloadGridWithUpdateData。否则，对于网格的初始填充，我使用函数populateGrid。 这两个函数被正确调用，但在函数reloadGridWithUpdateData行中

var p = grid.jqGrid("getGridParam");

似乎没有被执行。它也不会抛出异常。它找不到任何东西吗

更新：第一次加载数据时，数据会根据字段的名称划分为正确的列，正如您所期望的那样。重新加载数据时，数据列按其在数据结构中的顺序排列，忽略列名。这是我在网格的p.data属性中找到的。 因此，我确保数据结构按照与列名相同的顺序重新组织，但这没有任何区别，网格无法重新加载。 那么，为什么重新加载无法将新数据分配给数据列呢

UPDATE2-最初网格是空的。每次选择组合框中的项目时，数据都会加载到网格中，因此数据布局是相同的。使用Fiddler，我捕获了两个连续组合选择的数据

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Date: Mon, 22 Oct 2018 07:12:09 GMT

400
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400
al Mechanical - Defect(s) Outstanding","id":70,"parent":4474,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberOfOpenFaults":"1","fullAddress":"8, ADMIRALS WALK, Tollers Estate COULSDON EAST, CR5 1BR","faultNo":"","description":"","id":4478,"parent":0,"level":0,"isLeaf":false,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"3","description":"Ventilation - Grilles/air valves","id":105,"parent":4478,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberOfOpenFaults":"4","fullAddress":"14, ASHWOOD GARDENS, FIELDWAY, CR0 0SH","faultNo":"","description":"","id":4492,"parent":0,"level":0,"isLeaf":false,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"4","description":"Certification Mechanical - Boiler Benchmark/Manual","id":79,"parent":4492,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"6","description":"Unvented HWS Cylinder (UHC) - Pipework configuration","i
8c
d":81,"parent":4492,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"7","descrip
374
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1
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0

---

---

我对你现有的代码做了一些修改。请使用更新的代码重试并检查。在重新加载网格之前，您需要清除现有数据并使用setGridParam将其重置。

首先，您使用的数据有一些小但重要的问题。一个必须更换

“父项”：0

属性，该属性位于网格的所有根元素中

“父项”：空

它修复了TreeGrid中排序的问题。有关更多详细信息，请参阅

要了解重新加载TreeGrid数据的问题，需要查看以下几行免费jqGrid代码：

//修复了允许使用数据类型“local”，data:mydata而不是TreeGrid:true加载TreeGrid的问题
if（p.treeGrid&&p.datatype==“local”&&p.data！=null&&p.data.length>0）{
p、 datatype=“jsonstring”；
p、 datastr=p.data；
p、 数据=[]；
}
填充。调用（ts）；

看。这意味着免费jqGrid的代码允许使用

datatype:“local”

和

data

参数作为输入，以简化TreeGrid的使用，但它仍然使用旧的jqGrid方法加载TreeGrid数据

由于TreeGrid数据的重新加载会有点不同，例如：

var reloadGridWithUpdatedData = function (data) {
    var grid = $("#grid"),
        p = grid.jqGrid("getGridParam");

    p.data = [];
    p.datatype = "jsonstring";
    p.datastr = data;

    grid[0].grid.populate.call(grid[0]);
};

---

请参见此处的相应演示：

您的问题文本中没有包含ana测试数据。当前信息不足以重现问题。此外，您还写道“重新加载数据时，数据列的顺序与数据结构中的顺序相同，忽略列名”，这听起来很可疑。如果使用

p.data=data

用于刷新数据，则

数据的格式必须与
p.data
中的格式相同。它应该是具有属性
contractSubcontractorId
，
numberOfOpenFaults
，
fullAddress
，
faultNo
和
描述的对象数组。这是你的情况吗？我更新了问题，提供了更多关于如何检索数据和重新检索实际数据的详细信息。第一个数据集被呈现，第二个数据集不被呈现，除非我先刷新页面；人口网格（数据）；然而，我仍然想知道为什么问题中的代码不起作用。它清除网格OK，但不使用新的传入数据重新填充网格。
HTTP/1.1 200 OK
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Access-Control-Allow-Origin: http://localhost:12528
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Date: Mon, 22 Oct 2018 07:13:57 GMT

400
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400
cription":"","id":4475,"parent":0,"level":0,"isLeaf":false,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"6","description":"Alarms - Location","id":110,"parent":4475,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberOfOpenFaults":"1","fullAddress":"18, CHERTSEY CRESCENT, NEW ADDINGTON, CR0 0DA","faultNo":"","description":"","id":4573,"parent":0,"level":0,"isLeaf":false,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"2","description":"Earthing and Bonding - Supplementary bonding","id":137,"parent":4573,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberOfOpenFaults":"2","fullAddress":"Plot 2, 29, The Street, Geoff Close, , N1 7PL","faultNo":"","description":"","id":8705,"parent":0,"level":0,"isLeaf":false,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"1","description":"Lighting - Type","id":170,"parent":8705,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberO
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fOpenFaults":"","fullAddress":"","faultNo":"2","description":"Certification Electrical - Fire Alarm Certificate","id":171,"parent":8705,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberOfOpenFaults":"2","fullAddress":"Wenlock Barn Estate Hoxton Hackney, N1 7PL","faultNo":"","description":"","id":8899,"parent":0,"level":0,"isLeaf":false,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"1","description":"Accessories - Type/quantity/setting-out","id":179,"parent":8899,"level":1,"isLeaf":true,"expanded":false,"loaded":true},{"numberOfOpenFaults":"","fullAddress":"","faultNo":"2","description":"General Electrical - Incorrect circuit protective device","id":180,"parent":8899,"level":1,"isLeaf":true,"expanded":false,"loaded":true}]
0

var reloadGridWithUpdatedData = function (data) {
    var grid = $("#grid");
    grid.clearGridData();
    grid.jqGrid('setGridParam', {data:data)});
    grid.trigger("reloadGrid");
};

var reloadGridWithUpdatedData = function (data) {
    var grid = $("#grid"),
        p = grid.jqGrid("getGridParam");

    p.data = [];
    p.datatype = "jsonstring";
    p.datastr = data;

    grid[0].grid.populate.call(grid[0]);
};