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JS Mapping Momentary Zoom

Demonstrates momentary zoom functionality with JS.Chart.

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<%@ Import Namespace="System.Drawing" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Page Language="vb" Description="dotnetCHARTING Component" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>.netCHARTING Sample</title>
<script runat="server">

Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
' Demonstrates momentary zoom functionality with JS.

Chart.Type = ChartType.Map 'Horizontal;
Chart.Width = 500
Chart.Height = 550
Chart.TempDirectory = "temp"
Chart.Debug = False
Chart.JS.ControlID = "chart"
Chart.TitleBox.Label.Text = "Click legend entries to zoom momentarily"
Chart.LegendBox.Position = LegendBoxPosition.ChartArea
Chart.JS.Enabled = True
Chart.JS.Settings.Add("defaultSeries.events.legendEntryClick", "js:leClick")

' *DYNAMIC DATA NOTE*
' This sample uses random data to populate the chart. To populate
' a chart with database data see the following resources:
' - Classic samples folder
' - Help File > Data Tutorials
' - Sample: features/DataEngine.aspx
Chart.SeriesCollection.Add(getMapData())
End Sub

Function getMapData() As SeriesCollection
Dim SC As SeriesCollection = New SeriesCollection()
SC.Add(getSeries("CA"))
SC.Add(getSeries("US"))
SC.Add(getSeries("MX"))
SC.Add(getSeries("GT"))
SC.Add(getSeries("HN"))

Return SC
End Function
Function getSeries(ByVal code As String) As Series
Dim s As Series = New Series()
s.JsMap = code
Return s
End Function

</script>
</head>
<body>
<div align="center">
<script type="text/javascript">
var zotId, zoomOutDelay = 2000;

function leClick(e) {
this.zoomTo();
startZoomOut();
return false;
}
function startZoomOut() {
clearTimeout(zotId)
zotId = setTimeout(function () { chart.zoom(1); }, zoomOutDelay);
}

</script>
<dotnet:Chart ID="Chart" runat="server" Width="568px" Height="344px">
</dotnet:Chart>
</div>
</body>
</html>

Sample FilenameJsMappingMomentaryZoom.aspx
Version8.3
Uses DatabaseNo

JS Charting

Gallery

JS Mapping Momentary Zoom