製品版のみの機能
グリッド - ライブ更新
このサンプルは、igGrid でリアルタイム データにバインドして更新する方法を紹介します。
このサンプルは CTP 機能を使用しています。製品版では、API や動作が変更される場合があります。
このサンプルは、より大きい画面サイズのためにデザインされました。
モバイル デバイスで画面を回転、フル サイズ表示、またはその他のデバイスにメールで送信します。
サンプルは SignalR library を使用してグリッドのデータを生成し、リアルタイムで更新します。
コード ビュー
クリップボードへコピー
<!DOCTYPE html>
<html>
<head>
<title></title>
<!--Reference the SignalR library. -->
<script src="/Scripts/jquery.signalR-1.1.4.min.js"></script>
<!--Reference the autogenerated SignalR hub script. -->
<script src="/signalr/hubs"></script>
<!-- Ignite UI for jQuery Required Combined CSS Files -->
<link href="http://cdn-na.infragistics.com/igniteui/2024.1/latest/css/themes/infragistics/infragistics.theme.css" rel="stylesheet" />
<link href="http://cdn-na.infragistics.com/igniteui/2024.1/latest/css/structure/infragistics.css" rel="stylesheet" />
<script src="http://ajax.aspnetcdn.com/ajax/modernizr/modernizr-2.8.3.js"></script>
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.1/jquery-ui.min.js"></script>
<!-- Ignite UI for jQuery Required Combined JavaScript Files -->
<script src="http://cdn-na.infragistics.com/igniteui/2024.1/latest/js/infragistics.core.js"></script>
<script src="http://cdn-na.infragistics.com/igniteui/2024.1/latest/js/infragistics.lob.js"></script>
<script src="http://cdn-na.infragistics.com/igniteui/2024.1/latest/js/infragistics.dv.js"></script>
<style>
.price-down {
background-color:#ffe7e5;
}
.price-up {
background-color: #e1fbd6;
}
.rightAlign {
text-align:right !important;
}
.ui-sparkline {
padding: 0px !important;
}
</style>
<script id="colTmpl" type="text/template">
<div class='rightAlign'>
<span>${Change}%</span>
{{if parseFloat(${Change}) >= 0 }}
<img width='10' height='15' src='https://www.igniteui.com/images/samples/templating-engine/colTemplateWithConditionalCell/arrowUp.gif' />
{{else}}
<img width='10' height='15' src='https://www.igniteui.com/images/samples/templating-engine/colTemplateWithConditionalCell/arrowDown.gif' />
{{/if}}
</div>
</script>
</head>
<body>
<fieldset>
<table>
<colgroup>
<col style="width:150px" />
<col style="width:150px"/>
</colgroup>
<tr>
<td>
更新時間: <span id="intervalText">1500</span>
</td>
<td rowspan="2" style="padding-left:20px"><input type="button" id="startDataFeed" value="データ フィードの開始" /></td>
</tr>
<tr>
<td>
<div id="intervalSlider" class="sliderBounds" style="margin: 10px 5px 5px 10px;"></div>
</td>
</tr>
</table>
</fieldset>
<table id="grid"></table>
<script>
$(function () {
var refreshCount = 0, intervalId = 0, doUpdate = null,
toggleFeed = null, started = false;
var realTimeData = $.connection.realTimeData;
$.connection.hub.start().done(function () {
$("#startDataFeed").click(function () {
toggleFeed(true);
});
realTimeData.server.initData();
toggleFeed(true);
});
$("#startDataFeed").igButton({ height:"100%", width:"100%", labelText: $("#startDataFeed").val() });
$("#intervalSlider").slider({
slide: function (event, ui) {
$("#intervalText").text(ui.value.toString());
},
change: function( event, ui ) {
realTimeData.server.stopFeed();
setTimeout(function () {
//If the Data Feed was running before moving the slider this means that the button is saying "Stop Data Feed". We initiate the feed but do not change the button.
//Otherwise the startDataFeed button needs to be pressed after moving the slider to start feeding data.
if (started) {
//We set the started to false here since we stopped it above but wanted to check if the button is active.
started = false;
toggleFeed(false);
}
}, 100);
},
min: 500,
max: 3000,
value: 1500,
step: 500
});
toggleFeed = function (changeButton) {
var updateTicks = parseInt($("#intervalText").text());
if (!started) {
started = true;
if (changeButton) {
$("#startDataFeed").igButton({ labelText: 'データ フィードの停止' });
}
realTimeData.server.startFeed(updateTicks);
} else {
started = false;
if (changeButton) {
$("#startDataFeed").igButton({ labelText: 'データ フィードの開始' });
}
realTimeData.server.stopFeed();
}
};
realTimeData.client.updateData = function (data) {
//update random number of records
$(data).each(function () {
var grid = $("#grid"), cell = grid.igGrid("cellById", this.ID, "PriceChange"), chart;
chart = cell.find("div.sparkline").detach();
grid.igGridUpdating("updateRow", this.ID, this);
//clear transactions
var transactions = grid.igGrid("allTransactions");
transactions.pop();
cell.empty();
cell.append(chart);
chart.igSparkline("removeItem", 0);
chart.igSparkline("addItem", this.ValueChangesList[this.ValueChangesList.length - 1]);
//apply additional css to the updated record's Price and Change columns
var row = grid.igGrid("rowById", this.ID);
if (this.Change < 0) {
row.addClass("price-down").removeClass("price-down", 2000);
} else {
row.addClass("price-up").removeClass("price-up", 2000);
}
});
};
renderCharts = function (recID) {
//render all
$(".sparkline").each(function (i) {
var id = $(this).attr("data-id");
var rec = $("#grid").igGrid("findRecordByKey", id);
$(this).igSparkline({
dataSource: rec.ValueChangesList,
height: "25px",
width: "100%",
valueMemberPath: 'Price'
})
.css("background-color", "transparent");
});
}
formatNumericColumn = function (val) {
if (!val) {
return "--";
}
return (val/1000000).toFixed(2) + "M";
};
formatCurrency = function (val) {
return $.ig.formatter(val.toFixed(2), "number","currency");
}
realTimeData.client.initGrid = function (stockData) {
$("#grid").igGrid({
dataSource: stockData,
localSchemaTransform : false,
autoCommit: true,
width: "100%",
height: 80/100*$(window).height(),
primaryKey: "ID",
columns: [
{ headerText: "ID", key: "ID", dataType: "string", hidden: true },
{ headerText: "会社名", key: "CompanyName", dataType: "string", width: "*" },
{ headerText: "ボリューム", key: "Volume", dataType: "number", columnCssClass: "rightAlign", headerCssClass: "rightAlign", formatter: formatNumericColumn, width: "150px" },
{ headerText: "価格", key: "Price", dataType: "number", template: "<td class='rightAlign'><span>${Price}</span></td>", headerCssClass: "rightAlign", formatter: formatCurrency, width: "100px" },
{
headerText: "変更", key: "Change", dataType: "number", headerCssClass: "rightAlign", format: "0.00", template: $("#colTmpl").html(), width: "100px"
},
{
headerText: "価格の変更", key: "PriceChange", unbound: true, template: "<div data-id='${ID}' class='sparkline'></div>", headerCssClass: "rightAlign"
}
],
rowsRendered: function (evt, ui) {
renderCharts();
},
features: [
{
name: "Updating",
editMode: "none",
enableAddRow: false,
enableDeleteRow: false
}, {
name: "Filtering",
columnSettings: [{
columnKey: "Volume",
condition: "greaterThan",
conditionList:["greaterThan", "lessThan", "greaterThanOrEqualTo", "lessThanOrEqualTo"]
},{
columnKey: "Change",
condition: "greaterThan",
conditionList:["greaterThan", "lessThan", "greaterThanOrEqualTo", "lessThanOrEqualTo" ,"Positive", "Negative"],
customConditions: {
Positive: {
labelText: "正数",
expressionText: "Positive",
requireExpr: false,
filterFunc: filterPositiveChangeItems,
filterImgIcon: "ui-icon-plus"
},
Negative: {
labelText: "負数",
expressionText: "Negative",
requireExpr: false,
filterFunc: filterNegativeChangeItems,
filterImgIcon: "ui-icon-minus"
}
}
}, {
columnKey: "PriceChange",
allowFiltering: false
}, {
columnKey: "Price",
condition: "greaterThan",
conditionList:["greaterThan", "lessThan", "greaterThanOrEqualTo", "lessThanOrEqualTo"],
}]
}]
});
};
function filterPositiveChangeItems(value, expression, dataType, ignoreCase, preciseDateFormat) {
return value > 0;
}
function filterNegativeChangeItems(value, expression, dataType, ignoreCase, preciseDateFormat) {
return value < 0;
}
});
</script>
</body>
</html>