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Gallery > Simulated Chart Types

Waterfall

Demonstrates how to construct a waterfall chart.

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<%@ Page Language="C#" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="dotnetCHARTING.Mapping" %>

<script runat="server">

void Page_Load(Object sender, EventArgs e)
{
// Demonstrates how to construct a waterfall chart.

Chart.TempDirectory = "temp";
Chart.Debug = true;
Chart.DefaultSeries.Palette = new Color[]{Color.FromArgb(66,133,244),Color.FromArgb(254,76,20),Color.FromArgb(219,203,24),Color.FromArgb(21,172,32)};

Chart.Type = ChartType.Combo;
Chart.Size = "600x350";
//Chart.Title = ".netCHARTING Sample";
Chart.DefaultElement.ShowValue = true;
Chart.DefaultElement.SmartLabel.Text = "%YRange";

// *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(makeWaterfall(mySC[0]));
}

Series makeWaterfall(Series s)
{
double yVal = 0;
foreach (Element e in s.Elements)
{
e.YValueStart = yVal;
e.YValue += yVal;
yVal = e.YValue;
}
// Add a total element:
Element el = new Element("Total");
el.YValue = yVal;
el.YValueStart = 0;
s.Elements.Add(el);
return s;
}

SeriesCollection getRandomData()
{
Random myR = new Random(1);
SeriesCollection SC = new SeriesCollection();
int a = 0;
int b = 0;
for (a = 1; a < 2; a++)
{
Series s = new Series("Series " + a.ToString());
for (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("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>
<body>
<div align="center">
<dotnet:Chart ID="Chart" runat="server" />
</div>
</body>
</html>

<%@ Page Language="vb" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="dotnetCHARTING.Mapping" %>

<script runat="server">

Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
' Demonstrates how to construct a waterfall chart.

Chart.TempDirectory = "temp"
Chart.Debug = True
Chart.DefaultSeries.Palette = New Color(){Color.FromArgb(66,133,244),Color.FromArgb(254,76,20),Color.FromArgb(219,203,24),Color.FromArgb(21,172,32)}

Chart.Type = ChartType.Combo
Chart.Size = "600x350"
'Chart.Title = ".netCHARTING Sample";
Chart.DefaultElement.ShowValue = True
Chart.DefaultElement.SmartLabel.Text = "%YRange"

' *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(makeWaterfall(mySC(0)))
End Sub

Function makeWaterfall(ByVal s As Series) As Series
Dim yVal As Double = 0
For Each e As Element In s.Elements
e.YValueStart = yVal
e.YValue += yVal
yVal = e.YValue
Next e
' Add a total element:
Dim el As Element = New Element("Total")
el.YValue = yVal
el.YValueStart = 0
s.Elements.Add(el)
Return s
End Function

Function getRandomData() As SeriesCollection
Dim myR As Random = New Random(1)
Dim SC As SeriesCollection = New SeriesCollection()
Dim a As Integer = 0
Dim b As Integer = 0
For a = 1 To 1
Dim s As Series = New Series("Series " & a.ToString())
For b = 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("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>
<body>
<div align="center">
<dotnet:Chart ID="Chart" runat="server" />
</div>
</body>
</html>

Sample FilenameWaterfall.aspx
Version5.0
Uses DatabaseNo

JS Charting

Gallery

Waterfall