【发布时间】:2021-03-22 19:48:34
【问题描述】:
我在 asp.net Mvc 中使用 devextreme 数据网格。当我处理 5000 个数据时,Datagrid 工作正常。但是当我想处理10000条数据时,无法加载数据,内部服务器报错。
我的 index.cshtml;
<div class="row">
<div class="col-lg-12">
<h1 class="page-header col-dark-green">
Barsan Portal <small>Gönderici/Alıcı</small>
</h1>
<div class="demo-container">
<div id="gridContainer" style="height:800px"></div>
</div>
</div>
</div>
我的 index.js :
$(function () {
var dataSource = new DevExpress.data.DataSource("/Nakliye/GetGondericiAlicilar");
console.log(dataSource);
$("#gridContainer").dxDataGrid({
dataSource: new DevExpress.data.CustomStore({
key: "kodu",
pageSize:50,
loadMode: "raw", // omit in the DataGrid, TreeList, PivotGrid, and Scheduler
load: function () {
return $.getJSON("/Nakliye/GetGondericiAlicilar")
.fail(function () { throw "Data loading error" });
}
}),
selection: {
mode: 'multiple'
},
renderAsync: true,
allowColumnReordering: true,
allowColumnResizing: true,
cellHintEnabled: false,
columnResizingMode: "nextColumn",
showBorders: true,
searchPanel: {
visible: true,
width: 240,
placeholder: "Ara..."
},
headerFilter: {
visible: true,
},
filterPanel: {
visible: true
},
filterRow: {
visible: true
},
loadPanel: {
enabled: true
},
groupPanel: {
visible: true,
placeholder: "Bir sütun başlığını o sütuna göre gruplandırmak için buraya sürükleyin"
},
pager: {
showPageSizeSelector: true,
allowedPageSizes: [10, 20, 50, 100, 200],
showNavigationButtons: true,
showInfo: true,
infoText: "Sayfa {0} / {1} ({2} öğe)"
},
columns: [{
dataField: "adi",
caption: "Adı"
}, {
dataField: "Adres",
}, {
dataField: "il",
width: 115,
caption: "İl"
}, {
caption: "Ülke",
dataField: "ulke",
}, {
caption: "Posta Kodu",
dataField: "postakodu",
width: 115,
}, {
caption: "Telefon",
dataField: "telefon",
width: 155,
}, {
caption: "Faks",
dataField: "faks",
width: 155,
}, {
caption: "İlgili",
dataField: "ilgili",
width: 195,
}]
});
});
关于操作的我的控制器:
public ActionResult GetGondericiAlicilar() { return Json(_nakliyeService.GetGondericiAlicilar(), JsonRequestBehavior.AllowGet); }
GetGondericiAliciler() 在我的服务中:
public List<gnladresbankasi> GetGondericiAlicilar()
{
var result = _objectRawSql.Execute(StaticParams.Connstr, typeof(gnladresbankasi),
//sql functions
@"Select top 10000 kodu, adi, adres1 + ' ' + adres2 AS Adres, il, (select adi from gnlulke where kod = ulke) AS Ulke, postakodu, telefon, fax, ilgili
FROM gnladresbankasi ab WHERE Exists(select * from gnlFirmaGondericiAlici ga WHERE ab.kodu = ga.GondericiAliciKodu)").Cast<gnladresbankasi>().ToList();
return result;
}
正如我所说,5000 条数据效果很好,但是当有 10000 条数据时,加载图标返回,数据没有加载。 是否应针对大数据采取特别行动?
【问题讨论】:
-
欢迎来到 SO。请为您的问题选择正确的标签。不涉及 C 代码。是 C# 还是 C++ 还是其他?请编辑您的问题以相应地修复标签。
-
我看到您的控制器代码没有任何分页功能。这会导致网格的填充非常耗时。您可以使用 DevExtreme 的内置 DataSourceLoadOptions 类将分页数据从前端传递到项目的后端。
标签: c# jquery json asp.net-mvc devextreme