Migrate from Xamarin.Forms SfChart to .NET MAUI SfPyramidChart

13 Mar 202416 minutes to read

The Pyramid Chart was created from the scratch using the upgraded APIs and performance of the .NET MAUI graphics library and framework layouts. However, a minor code change is required. In addition, SfChart has been divided into five chart controls in .NET MAUI for a better user experience and understanding.

Xamarin .NET MAUI
SfChart
SfCartesianChart
SfCircularChart
SfFunnelChart
SfPyramidChart
SfPolarChart

To make the migration easier, the most of the APIs from the Xamarin SfChart were kept in the .NET MAUI SfPyramidChart. Currently, most of the features have been added to the SfPyramidChart, but only a few are pending in the .NET MAUI, along with some limitations. Please refer to the following details and the API migration information available below.

API migration

To initialize the control, import the Chart namespace and Initialize SfPyramidChart, as shown in the following code sample.

Xamarin 
<ContentPage
    . . .
    xmlns:chart="clr-namespace:Syncfusion.SfChart.XForms;assembly=Syncfusion.SfChart.XForms">

     <chart:SfChart/>

</ContentPage>
using Syncfusion.SfChart.XForms;
...

SfChart chart = new SfChart(); 
this.Content = chart;
.NET MAUI 
<ContentPage
    . . .    
    xmlns:chart="clr-namespace:Syncfusion.Maui.Charts;assembly=Syncfusion.Maui.Charts">
   
        <chart:SfPyramidChart/>
   
</ContentPage>
using Syncfusion.Maui.Charts;
. . .
SfPyramidChart chart = new SfPyramidChart(); 
this.Content = chart;

The following table illustrates the API migration for the chart.

Xamarin .NET MAUI
ColorModel, CustomBrushes PaletteBrushes
ChartBehaviors TooltipBehavior, SelectionBehavior

Series

The following properties are given in SfPyramidChart.

Xamarin .NET MAUI
Color -
ColorModel PaletteBrushes
SelectedDataPointColor SelectionBrush
DataMarker ShowDataLabels, DataLabelSettings

The following code example explains how to migrate the series of Xamarin SfChart to the .NET MAUI SfPyramidChart.

Xamarin 
<chart:SfChart>
    <chart:PyramidSeries ItemsSource="{Binding Data}" 
                         XBindingPath="Name" 
                         YBindingPath="Value"/>
</chart:SfChart>
SfChart chart = new SfChart();
. . .
PyramidSeries series = new PyramidSeries();
series.ItemsSource = Data;
series.XBindingPath = "Name";
series.YBindingPath = "Value";
chart.Series.Add(series);
this.Content = chart;
.NET MAUI 
<chart:SfPyramidChart ItemsSource="{Binding Data}" 
                      XBindingPath="Name" 
                      YBindingPath="Value">
</chart:SfPyramidChart>
SfPyramidChart chart = new SfPyramidChart();
ChartViewModel viewModel = new ChartViewModel();
chart.BindingContext = viewModel;
chart.ItemsSource = viewModel.Data;
chart.XBindingPath = "Name";
chart.YBindingPath = "Value";
this.Content = chart;

Legend

Xamarin .NET MAUI
DockPosition Placement
IsVisible IsVisible
Title Upcoming
ToggleSeriesVisibility Upcoming
OverflowMode Upcoming
MaxWidth Upcoming
Orientation Upcoming
IsIconVisible Upcoming
ItemMargin Upcoming
IconWidth Upcoming
IconHeight Upcoming
OffsetX Upcoming
OffsetY Upcoming

The following code example shows how to enable legend in chart.

Xamarin 
<chart:SfChart>
  <chart:SfChart.Legend>
    <chart:ChartLegend/>
  </chart:SfChart.Legend>
</chart:SfChart>
SfChart chart = new SfChart();
. . .
chart.Legend = new ChartLegend ();
.NET MAUI 
<chart:SfPyramidChart>
    . . .
    <chart:SfPyramidChart.Legend>
      <chart:ChartLegend/>
    </chart:SfPyramidChart.Legend>
</chart:SfPyramidChart>
SfPyramidChart chart = new SfPyramidChart();
. . .
chart.Legend = new ChartLegend();

Data Label

To customize the data label appearance, create an instance of the ChartDataMarker class and add it to the DataMarker of Series. For SfPyramidChart, you can set the PyramidDataLabelSettings instance to the DataLabelSettings property, as shown in the below code sample.

Xamarin 
<chart:SfChart>  
    <chart:PyramidSeries ItemsSource ="{Binding Data}" 
                         XBindingPath="Name" 
                         YBindingPath="Value">
	    <chart:PyramidSeries.DataMarker>
	    <chart:ChartDataMarker ShowLabel="True">
		  <chart:ChartDataMarker.LabelStyle>
             <chart:DataMarkerLabelStyle TextColor="Blue"
                                         BorderColor="Red"
                                         BorderThickness="2"
                                         BackgroundColor="Aqua"
                                         Angle="315"
                                         Margin="5" 
                                         FontSize="18" 
					 FontAttributes="Italic"/>
		  </chart:ChartDataMarker.LabelStyle>
	    </chart:ChartDataMarker>
	    </chart:PyramidSeries.DataMarker>
    </chart:PyramidSeries>
</chart:SfChart>
PyramidSeries series = new PyramidSeries();
. . .
series.DataMarker = new ChartDataMarker();
series.DataMarker.ShowLabel = true;

var style = new DataMarkerLabelStyle();
style.TextColor = Color.Blue;
style.BorderColor = Color.Red;
style.BorderThickness = 2;
style.BackgroundColor = Color.Aqua;
style.Angle = 315;
style.Margin = 5;
style.FontSize = 18;
series.DataMarker.LabelStyle = style;

chart.Series.Add(series);
.NET MAUI 
<chart:SfPyramidChart ItemsSource="{Binding Data}" 
                       XBindingPath="Name" 
                       YBindingPath="Value"
                       ShowDataLabels="True">
    <chart:SfPyramidChart.DataLabelSettings>
        <chart:PyramidDataLabelSettings>
            <chart:PyramidDataLabelSettings.LabelStyle>
                <chart:ChartDataLabelStyle TextColor="Blue" 
                                           Stroke="Red"
					   StrokeWidth="2" 
                                           Background="Aqua" 
                                           Margin="10" 
					   FontSize="16"
					   FontAttributes="Bold"/>
            </chart:PyramidDataLabelSettings.LabelStyle>
        </chart:PyramidDataLabelSettings>
    </chart:SfPyramidChart.DataLabelSettings>
 </chart:SfPyramidChart>
SfPyramidChart chart = new SfPyramidChart();
. . .
chart.ShowDataLabels = true;
chart.DataLabelSettings = new PyramidDataLabelSettings();
var style = new ChartDataLabelStyle();
style.TextColor = Colors.Blue;
style.Stroke = Colors.Red;
style.StrokeWidth = 2;
style.Background = Colors.Aqua;
style.Margin = 5;
style.FontSize = 18;
chart.DataLabelSettings.LabelStyle = style;

Tooltip

To customize the tooltip appearance, create an instance of the ChartTooltipBehavior class and add it to the ChartBehaviors collection of SfChart. For SfPyramidChart, you can directly set the ChartTooltipBehavior instance to the TooltipBehavior property, as shown in the below code sample.

Xamarin 
<chart:SfChart>
. . . 
    <chart:SfChart.ChartBehaviors>
       <chart:ChartTooltipBehavior BackgroundColor="Blue" 
                                   TextColor="White" 
                                   Margin="5"
                                   FontSize="15"/>
    </chart:SfChart.ChartBehaviors>
    
    <chart:PyramidSeries ItemsSource="{Binding Data}" 
                         XBindingPath="Name"
                         YBindingPath="Value"
                         EnableTooltip="True"/>
</chart:SfChart>
PyramidSeries  series = new PyramidSeries ();
. . .
series.EnableTooltip = true;
chart.Series.Add(series);

ChartTooltipBehavior tool = new ChartTooltipBehavior();
tool.BackgroundColor = Color.Blue;
tool.TextColor = Color.White;
tool.Margin = new Thickness(5, 5, 5, 5);
chart.ChartBehaviors.Add(tool);
.NET MAUI 
<chart:SfPyramidChart ItemsSource="{Binding Data1}" 
                      XBindingPath="Name"  
                      YBindingPath="Value"
                      EnableTooltip="True">
    <chart:SfPyramidChart.TooltipBehavior>
        <chart:ChartTooltipBehavior Background="Blue" 
                                    TextColor="White" 
                                    Margin="5" 
                                    FontSize="15"/>
    </chart:SfPyramidChart.TooltipBehavior>
</chart:SfPyramidChart>
SfPyramidChart chart = new SfPyramidChart();
. . .      
chart.EnableTooltip=true;
ChartTooltipBehavior tooltip = new ChartTooltipBehavior();
tooltip.Background = Colors.Blue;
tooltip.TextColor = Colors.White;
tooltip.Margin = new Thickness(5, 5, 5, 5);
chart.TooltipBehavior = tooltip;

Selection

Create an instance of the ChartSelectionBehavior class and add it to the ChartBehaviors collection of SfChart. For SfPyramidChart, you can directly set the DataPointSelectionBehavior instance to the SelectionBehavior property, as shown in the below code sample.

Xamarin 
<chart:SfChart>
...
	<chart:SfChart.ChartBehaviors>
        <chart:ChartSelectionBehavior/>
    </chart:SfChart.ChartBehaviors>

    <chart:PyramidSeries EnableDataPointSelection="True" 
                         SelectedDataPointIndex="2" 
                         SelectedDataPointColor="Red" 
                         ItemsSource ="{Binding Data}" 
                         XBindingPath="Name" 
                         YBindingPath="Value" />
</chart:SfChart>
SfChart chart = new SfChart();
PyramidSeries series = new PyramidSeries();
. . .
series.EnableDataPointSelection = true;
series.SelectedDataPointIndex = 2;
series.SelectedDataPointColor = Color.Red;
ChartSelectionBehavior selectionBehavior = new ChartSelectionBehavior();
chart.ChartBehaviors.Add(selectionBehavior);
chart.Series.Add(series);
.NET MAUI 
<chart:SfPyramidChart ItemsSource="{Binding Data}" 
                      XBindingPath="Name"      
                      YBindingPath="Value">
    <chart:SfPyramidChart.SelectionBehavior>
        <chart:DataPointSelectionBehavior SelectedIndex="2" 
                                          SelectionBrush="red"/>
    </chart:SfPyramidChart.SelectionBehavior>
</chart:SfPyramidChart>
SfPyramidChart chart = new SfPyramidChart();
. . .    
DataPointSelectionBehavior selection = new DataPointSelectionBehavior();
selection.SelectedIndex = 1;
selection.SelectionBrush = Colors.Red;
chart.SelectionBehavior = selection;

Upcoming features in .NET MAUI

Chart

  • Listen to property change support for chart.
  • Notify event or method when chart is rendering.
  • Suspend and resume notification.
  • Support for chart animation.
  • Exploding segments on touch.

Legend

  • Title support for legend.
  • Support to enable or disable the legend icon visibility.
  • Legend items wrap and floating support.
  • Maximum width support for Legend.
  • Event or method to notify the legend click and the creation of a legend item.
  • The ability to show/hide corresponding data points by legend item toggle.

Data label

  • Connector lines customization support.

Unsupported features from Xamarin.Forms

  • In.NET MAUI, the ChartDataPoint model class was no longer available. Instead, create your own model.

Support and feedback

If you are unable to find the migration information you require in the self-help resources listed above, please contact us by creating a support ticket. Do not see what you need? Please request it in our feedback portal.