Getting Started with WPF HeatMap (SfHeatMap)
23 Oct 2019 / 17 minutes to read
Initialize the SfHeatMap
The SfHeatMap exists in the Syncfusion.UI.Xaml.HeatMap namespace. Initialize SfHeatMap to the XAML Page as shown in the following code sample.
<Window x:Class="GettingStarted.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:GettingStarted"
mc:Ignorable="d"
xmlns:syncfusion="http://schemas.syncfusion.com/wpf"
Title="MainWindow" Height="350" Width="525">
<Grid>
<syncfusion:SfHeatMap>
</syncfusion:SfHeatMap>
</Grid>
</Window>NOTE
Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, you also have to include a license key in your projects. Please refer to this link to know about registering Syncfusion license key in your WPF application to use our components.
Prepare data
Create a class to store Product information to be visualized using SfHeatMap
public class Product
{
public string ProductName { get; set; }
public double Y2007 { get; set; }
public double Y2008 { get; set; }
public double Y2009 { get; set; }
public double Y2010 { get; set; }
public double Y2011 { get; set; }
public double Y2012 { get; set; }
public double Y2013 { get; set; }
public double Y2014 { get; set; }
public double Y2015 { get; set; }
public double Y2016 { get; set; }
public Product()
{
}
}
public class Products : ObservableCollection<Product>
{
}Populate data
Populate product information in a collection
<local:Products x:Key="productsData">
<local:Product ProductName="Alice Mutton" Y2007="3" Y2008="4" Y2009="3" Y2010="4" Y2011="10"
Y2012="6" Y2013="7" Y2014="6" Y2015="8" Y2016="5"/>
<local:Product ProductName="Boston Crab Meat" Y2007="10" Y2008="11" Y2009="10" Y2010="12"
Y2011="15" Y2012="13" Y2013="11" Y2014="10" Y2015="12" Y2016="11"/>
<local:Product ProductName="Raclette Courdavault" Y2007="12" Y2008="12" Y2009="15" Y2010="18"
Y2011="19" Y2012="20" Y2013="22" Y2014="21" Y2015="22" Y2016="25"/>
<local:Product ProductName="Gorgonzola Telino" Y2007="1" Y2008="1" Y2009="2" Y2010="3"
Y2011="2" Y2012="2" Y2013="3" Y2014="2" Y2015="3" Y2016="3"/>
<local:Product ProductName="Chartreuse verte" Y2007="15" Y2008="14" Y2009="14" Y2010="13"
Y2011="10" Y2012="8" Y2013="9" Y2014="9" Y2015="8" Y2016="8"/>
<local:Product ProductName="Fløtemysost" Y2007="3" Y2008="3" Y2009="4" Y2010="5" Y2011="4"
Y2012="6" Y2013="8" Y2014="2" Y2015="5" Y2016="7"/>
<local:Product ProductName="Carnarvon Tigers" Y2007="20" Y2008="21" Y2009="20" Y2010="20"
Y2011="20" Y2012="21" Y2013="20" Y2014="20" Y2015="21" Y2016="22"/>
<local:Product ProductName="Vegie-spread" Y2007="18" Y2008="19" Y2009="20" Y2010="21"
Y2011="22" Y2012="23" Y2013="24" Y2014="25" Y2015="25" Y2016="25"/>
<local:Product ProductName="Tarte au sucre" Y2007="1" Y2008="2" Y2009="3" Y2010="3" Y2011="4"
Y2012="4" Y2013="7" Y2014="10" Y2015="12" Y2016="16"/>
<local:Product ProductName="Konbu" Y2007="10" Y2008="8" Y2009="8" Y2010="7" Y2011="8"
Y2012="10" Y2013="11" Y2014="12" Y2015="11" Y2016="13"/>
<local:Product ProductName="Valkoinen suklaa" Y2007="20" Y2008="20" Y2009="19" Y2010="20"
Y2011="15" Y2012="12" Y2013="6" Y2014="3" Y2015="3" Y2016="3"/>
<local:Product ProductName="Perth Pasties" Y2007="12" Y2008="13" Y2009="13" Y2010="15"
Y2011="15" Y2012="18" Y2013="19" Y2014="19" Y2015="22" Y2016="22"/>
</local:Products>Map data into SfHeatMap
Now data is ready, next we need to configure data source and map rows and columns to visualize.
- Prepare ItemsMapping add it in resource.
<syncfusion:TableMapping x:Key="ItemsMapping">
<syncfusion:TableMapping.HeaderMapping>
<syncfusion:ColumnMapping PropertyName="ProductName" DisplayName="Product Name"/>
</syncfusion:TableMapping.HeaderMapping>
<syncfusion:TableMapping.ColumnMapping>
<syncfusion:ColumnMapping PropertyName="Y2007" DisplayName="Y2007"/>
<syncfusion:ColumnMapping PropertyName="Y2008" DisplayName="Y2008"/>
<syncfusion:ColumnMapping PropertyName="Y2009" DisplayName="Y2009"/>
<syncfusion:ColumnMapping PropertyName="Y2010" DisplayName="Y2010"/>
<syncfusion:ColumnMapping PropertyName="Y2011" DisplayName="Y2011"/>
<syncfusion:ColumnMapping PropertyName="Y2012" DisplayName="Y2012"/>
<syncfusion:ColumnMapping PropertyName="Y2013" DisplayName="Y2013"/>
<syncfusion:ColumnMapping PropertyName="Y2014" DisplayName="Y2014"/>
<syncfusion:ColumnMapping PropertyName="Y2015" DisplayName="Y2015"/>
<syncfusion:ColumnMapping PropertyName="Y2016" DisplayName="Y2016"/>
</syncfusion:TableMapping.ColumnMapping>
</syncfusion:TableMapping>- Set items source and mapping
<syncfusion:SfHeatMap ItemsSource="{StaticResource productsData}"
ItemsMapping="{StaticResource itemsMapping}">
</syncfusion:SfHeatMap>- This will show a grid with data as in following image.
Color Mapping
Next we can configure color range for these values using color mapping
- Configure items mapping based on items source.
<syncfusion:ColorMappingCollection x:Key="colorMapping">
<syncfusion:ColorMapping Value="0" Color="#8ec8f8"/>
<syncfusion:ColorMapping Value="30" Color="#0d47a1"/>
</syncfusion:ColorMappingCollection>- Set ColorMapping
<syncfusion:SfHeatMap ItemsSource="{StaticResource productsData}"
ItemsMapping="{StaticResource itemsMapping}"
ColorMappingCollection="{StaticResource colorMapping}">- This will show the grid data with color based on the range given.
Legend
A legend control is used to represent range value in a gradient, create a legend with the same color mapping as shown below.
<syncfusion:SfHeatMapLegend ColorMappingCollection="{StaticResource colorMapping}"/>Final MainPage.cs looks like this.
namespace GettingStarted
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
}
public class Product
{
public string ProductName { get; set; }
public double Y2007 { get; set; }
public double Y2008 { get; set; }
public double Y2009 { get; set; }
public double Y2010 { get; set; }
public double Y2011 { get; set; }
public double Y2012 { get; set; }
public double Y2013 { get; set; }
public double Y2014 { get; set; }
public double Y2015 { get; set; }
public double Y2016 { get; set; }
public Product()
{
}
}
public class Products : ObservableCollection<Product>
{
}
}Final MainPage.xaml looks like this.
<Window x:Class="GettingStarted.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:GettingStarted"
mc:Ignorable="d"
xmlns:syncfusion="http://schemas.syncfusion.com/wpf"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<local:Products x:Key="productsData">
<local:Product ProductName="Alice Mutton" Y2007="3" Y2008="4" Y2009="3" Y2010="4" Y2011="10" Y2012="6" Y2013="7" Y2014="6" Y2015="8" Y2016="5"/>
<local:Product ProductName="Boston Crab Meat" Y2007="10" Y2008="11" Y2009="10" Y2010="12" Y2011="15" Y2012="13" Y2013="11" Y2014="10" Y2015="12" Y2016="11"/>
<local:Product ProductName="Raclette Courdavault" Y2007="12" Y2008="12" Y2009="15" Y2010="18" Y2011="19" Y2012="20" Y2013="22" Y2014="21" Y2015="22" Y2016="25"/>
<local:Product ProductName="Gorgonzola Telino" Y2007="1" Y2008="1" Y2009="2" Y2010="3" Y2011="2" Y2012="2" Y2013="3" Y2014="2" Y2015="3" Y2016="3"/>
<local:Product ProductName="Chartreuse verte" Y2007="15" Y2008="14" Y2009="14" Y2010="13" Y2011="10" Y2012="8" Y2013="9" Y2014="9" Y2015="8" Y2016="8"/>
<local:Product ProductName="Fløtemysost" Y2007="3" Y2008="3" Y2009="4" Y2010="5" Y2011="4" Y2012="6" Y2013="8" Y2014="2" Y2015="5" Y2016="7"/>
<local:Product ProductName="Carnarvon Tigers" Y2007="20" Y2008="21" Y2009="20" Y2010="20" Y2011="20" Y2012="21" Y2013="20" Y2014="20" Y2015="21" Y2016="22"/>
<local:Product ProductName="Vegie-spread" Y2007="18" Y2008="19" Y2009="20" Y2010="21" Y2011="22" Y2012="23" Y2013="24" Y2014="25" Y2015="25" Y2016="25"/>
<local:Product ProductName="Tarte au sucre" Y2007="1" Y2008="2" Y2009="3" Y2010="3" Y2011="4" Y2012="4" Y2013="7" Y2014="10" Y2015="12" Y2016="16"/>
<local:Product ProductName="Konbu" Y2007="10" Y2008="8" Y2009="8" Y2010="7" Y2011="8" Y2012="10" Y2013="11" Y2014="12" Y2015="11" Y2016="13"/>
<local:Product ProductName="Valkoinen suklaa" Y2007="20" Y2008="20" Y2009="19" Y2010="20" Y2011="15" Y2012="12" Y2013="6" Y2014="3" Y2015="3" Y2016="3"/>
<local:Product ProductName="Perth Pasties" Y2007="12" Y2008="13" Y2009="13" Y2010="15" Y2011="15" Y2012="18" Y2013="19" Y2014="19" Y2015="22" Y2016="22"/>
</local:Products>
<syncfusion:TableMapping x:Key="itemsMapping">
<syncfusion:TableMapping.HeaderMapping>
<syncfusion:ColumnMapping PropertyName="ProductName" DisplayName="Product"/>
</syncfusion:TableMapping.HeaderMapping>
<syncfusion:TableMapping.ColumnMapping>
<syncfusion:ColumnMapping PropertyName="Y2007" DisplayName="2007"/>
<syncfusion:ColumnMapping PropertyName="Y2008" DisplayName="2008"/>
<syncfusion:ColumnMapping PropertyName="Y2009" DisplayName="2009"/>
<syncfusion:ColumnMapping PropertyName="Y2010" DisplayName="2010"/>
<syncfusion:ColumnMapping PropertyName="Y2011" DisplayName="2011"/>
<syncfusion:ColumnMapping PropertyName="Y2012" DisplayName="2012"/>
<syncfusion:ColumnMapping PropertyName="Y2013" DisplayName="2013"/>
<syncfusion:ColumnMapping PropertyName="Y2014" DisplayName="2014"/>
<syncfusion:ColumnMapping PropertyName="Y2015" DisplayName="2015"/>
<syncfusion:ColumnMapping PropertyName="Y2016" DisplayName="2016"/>
</syncfusion:TableMapping.ColumnMapping>
</syncfusion:TableMapping>
<syncfusion:ColorMappingCollection x:Key="colorMapping">
<syncfusion:ColorMapping Value="0" Color="#8ec8f8"/>
<syncfusion:ColorMapping Value="30" Color="#0d47a1"/>
</syncfusion:ColorMappingCollection>
</Window.Resources>
<Grid HorizontalAlignment="Center" VerticalAlignment="Center">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<syncfusion:SfHeatMap ItemsSource="{StaticResource productsData}"
ItemsMapping="{StaticResource itemsMapping}"
ColorMappingCollection="{StaticResource colorMapping}">
</syncfusion:SfHeatMap>
<syncfusion:SfHeatMapLegend Grid.Row="1"
Margin="20"
MaxWidth="300"
ColorMappingCollection="{StaticResource colorMapping}"/>
</Grid>
</Window>
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