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JS Toggle Visibility

Demonstrates toggling series visibility from javascript.

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<%@ Page Language="C#" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dnc" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<script runat="server">

void Page_Load(Object sender, EventArgs e)
{
// Demonstrates toggling series visibility from javascript.

Chart.Size = "600x350";
//Chart.Title = ".netCHARTING Sample";
Chart.TempDirectory = "temp";
Chart.Debug = false;

// Enable JSCharting
Chart.JS.Enabled = true;

// Setting the chart id lets you refer to the JS chart object in JavaScript.
Chart.JS.ControlID = "JscChart";

// *DYNAMIC DATA NOTE*
// This sample uses random data to populate the chart. To populate
// a chart with database data see the following resources:
// - Use the getLiveData() method using the dataEngine to query a database.
// - Help File > Getting Started > Data Tutorials
// - DataEngine Class in the help file
// - Sample: features/DataEngine.aspx

SeriesCollection mySC = getRandomData();

// Add the random data.
Chart.SeriesCollection.Add(mySC);
}

SeriesCollection getRandomData()
{
Random myR = new Random(1);
SeriesCollection SC = new SeriesCollection();
for (int a = 1; a < 5; a++)
{
Series s = new Series("Series " + a.ToString());
s.JsID = "s" + a.ToString();
for (int b = 1; b < 5; b++)
{
Element e = new Element("Element " + b.ToString());
e.YValue = myR.Next(50);
s.Elements.Add(e);
}
SC.Add(s);
}
return SC;
}

SeriesCollection getLiveData()
{
DataEngine de = new DataEngine(ConfigurationManager.AppSettings["DNCConnectionString"]);
de.ChartObject = Chart; // Necessary to view any errors the dataEngine may throw.
de.SqlStatement = "SELECT XAxisColumn, YAxisColumn FROM ....";
return de.GetSeries();
}

</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>.netCHARTING Sample</title>
</head>
<script type="text/javascript">
var chartID = "JscChart";
function toggleVis() {
//Get the series
var series = JscChart.series('s1');
// toggle series visibility. Passing a bool parameter indicates whether to show or hide without toggling.
series.visible();
}

</script>
<body>
<div align="center">
<dnc:Chart ID="Chart" runat="server" />
<input id="visButton" type="button" onclick="toggleVis();" value="Toggle Series 1 Visibility" />
</div>
</body>
</html>

<%@ Page Language="vb" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dnc" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<script runat="server">

Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
' Demonstrates toggling series visibility from javascript.

Chart.Size = "600x350"
'Chart.Title = ".netCHARTING Sample";
Chart.TempDirectory = "temp"
Chart.Debug = False

' Enable JSCharting
Chart.JS.Enabled = True

' Setting the chart id lets you refer to the JS chart object in JavaScript.
Chart.JS.ControlID = "JscChart"

' *DYNAMIC DATA NOTE*
' This sample uses random data to populate the chart. To populate
' a chart with database data see the following resources:
' - Use the getLiveData() method using the dataEngine to query a database.
' - Help File > Getting Started > Data Tutorials
' - DataEngine Class in the help file
' - Sample: features/DataEngine.aspx

Dim mySC As SeriesCollection = getRandomData()

' Add the random data.
Chart.SeriesCollection.Add(mySC)
End Sub

Function getRandomData() As SeriesCollection
Dim myR As Random = New Random(1)
Dim SC As SeriesCollection = New SeriesCollection()
For a As Integer = 1 To 4
Dim s As Series = New Series("Series " & a.ToString())
s.JsID = "s" & a.ToString()
For b As Integer = 1 To 4
Dim e As Element = New Element("Element " & b.ToString())
e.YValue = myR.Next(50)
s.Elements.Add(e)
Next b
SC.Add(s)
Next a
Return SC
End Function

Function getLiveData() As SeriesCollection
Dim de As DataEngine = New DataEngine(ConfigurationManager.AppSettings("DNCConnectionString"))
de.ChartObject = Chart ' Necessary to view any errors the dataEngine may throw.
de.SqlStatement = "SELECT XAxisColumn, YAxisColumn FROM ...."
Return de.GetSeries()
End Function

</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>.netCHARTING Sample</title>
</head>
<script type="text/javascript">
var chartID = "JscChart";
function toggleVis() {
//Get the series
var series = JscChart.series('s1');
// toggle series visibility. Passing a bool parameter indicates whether to show or hide without toggling.
series.visible();
}

</script>
<body>
<div align="center">
<dnc:Chart ID="Chart" runat="server" />
<input id="visButton" type="button" onclick="toggleVis();" value="Toggle Series 1 Visibility" />
</div>
</body>
</html>

Sample FilenameJsToggleVisibility.aspx
Version8.0
Uses DatabaseNo

JS Charting

Gallery

JS Toggle Visibility