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JS Zooming

Demonstrates zooming features of JSCharting.

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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 zooming features of JSCharting.

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

Chart.DefaultSeries.Type = SeriesType.Line;
Chart.DefaultElement.ToolTip = "%YValue <br> %XValue";

// Enable JSCharting
Chart.JS.Enabled = true;
Chart.JS.Buttons.EnableExportButton = false;
Chart.JS.Buttons.EnablePrintButton = false;

Chart.JS.AxisToZoom = "x";
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();
DateTime dt = new DateTime(2011, 1, 1);
Series s = new Series("Series 1");
for (int b = 1; b < 56; b++)
{
Element e = new Element();
e.XDateTime = dt = dt.AddDays(1);
e.YValue = myR.Next(50);
s.Elements.Add(e);
}
SC.Add(s);

return SC;
}

SeriesCollection getLiveData()
{
DataEngine de = new DataEngine("ConnectionString goes here");
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 day = (1000 * 60 * 60 * 24);

function dSeven() {
var extremes = jscChart.axes('x').getRange();
jscChart.axes('x').zoom(extremes.max - (day * 7), extremes.max);
}

function mOne() {
var extremes = jscChart.axes('x').getRange();
jscChart.axes('x').zoom(extremes.max - (day * 30), extremes.max);
}
function maxR() {
//Reset Zoom
var extremes = jscChart.axes('x').zoom();

}

</script>
<body>
<div align="center">
Click and drag on the chart area to zoom.
<input id="button_D7" type="button" onclick="dSeven();" value="7d" />
<input id="button_M1" type="button" onclick="mOne();" value="1m" />
<input id="button1" type="button" onclick="maxR();" value="Max" />
<dnc:Chart ID="Chart" runat="server" />
</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 zooming features of JSCharting.

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

Chart.DefaultSeries.Type = SeriesType.Line
Chart.DefaultElement.ToolTip = "%YValue <br> %XValue"

' Enable JSCharting
Chart.JS.Enabled = True
Chart.JS.Buttons.EnableExportButton = False
Chart.JS.Buttons.EnablePrintButton = False

Chart.JS.AxisToZoom = "x"
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()
Dim dt As DateTime = New DateTime(2011, 1, 1)
Dim s As Series = New Series("Series 1")
For b As Integer = 1 To 55
Dim e As Element = New Element()
dt = dt.AddDays(1)
e.XDateTime = dt
e.YValue = myR.Next(50)
s.Elements.Add(e)
Next b
SC.Add(s)

Return SC
End Function

Function getLiveData() As SeriesCollection
Dim de As DataEngine = New DataEngine("ConnectionString goes here")
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 day = (1000 * 60 * 60 * 24);

function dSeven() {
var extremes = jscChart.axes('x').getRange();
jscChart.axes('x').zoom(extremes.max - (day * 7), extremes.max);
}

function mOne() {
var extremes = jscChart.axes('x').getRange();
jscChart.axes('x').zoom(extremes.max - (day * 30), extremes.max);
}
function maxR() {
//Reset Zoom
var extremes = jscChart.axes('x').zoom();

}

</script>
<body>
<div align="center">
Click and drag on the chart area to zoom.
<input id="button_D7" type="button" onclick="dSeven();" value="7d" />
<input id="button_M1" type="button" onclick="mOne();" value="1m" />
<input id="button1" type="button" onclick="maxR();" value="Max" />
<dnc:Chart ID="Chart" runat="server" />
</div>
</body>
</html>

Sample FilenameJsZooming.aspx
Version8.0
Uses DatabaseNo

JS Charting

Gallery

JS Zooming