Styling Legend and Legend Items

The Legend object displays information about the time series in xamTimeline™. A LegendItem object displays the title of a series along with the event point that represents the event inside the legend.

This example assumes that you know how to setup your project for Infragistics xamTimeline control. The following xaml code shows how to style the legend and its legend items. Also it will change the EventPoint object’s style to display a rectangle to mark events. Since the event point is changed, the legend item’s style for corresponding event series is also changed to match.

Add the following tags to user control’s resource dictionary.

In XAML:

    <UserControl.Resources>
        <!-- Style for EventPoint object -->
        <Style x:Key="rscEventPointStyle" TargetType="ig:EventPoint">
            <Setter Property="Width" Value="12" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ig:EventPoint">
                        <Grid>
                            <!-- Uses a rectangle to mark points -->
                            <Rectangle Fill="{TemplateBinding Fill}"
                                       Stroke="{TemplateBinding Stroke}"
                                       StrokeThickness="1"
                                       Width="{TemplateBinding Width}"
                                       Height="{TemplateBinding Width}" />
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <!-- Style for Legend object -->
        <Style x:Key="rscLegendStyle" TargetType="ig:Legend">
            <Setter Property="BorderBrush" Value="Black"/>
            <Setter Property="BorderThickness" Value="1"/>
            <Setter Property="IsTabStop" Value="/>
            <Setter Property="TitleStyle">
                <Setter.Value>
                    <Style TargetType="ig:Title">
                        <Setter Property="Margin" Value="0,5,0,10"/>
                        <Setter Property="FontWeight" Value="Bold"/>
                        <Setter Property="HorizontalAlignment" Value="Center"/>
                    </Style>
                </Setter.Value>
            </Setter>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ig:Legend">
                        <Border Background="BlanchedAlmond"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="0"
                                Padding="2" Margin="10,10,10,0"
                                Height="200" Width="150">
                            <Grid>
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="Auto" />
                                    <RowDefinition />
                                </Grid.RowDefinitions>
                                <ig:Title Grid.Row="0"
                                      Content="{TemplateBinding Title}"
                                      Style="{TemplateBinding TitleStyle}"/>
                                <ScrollViewer Grid.Row="1"
                                        VerticalScrollBarVisibility="Auto"
                                        BorderThickness="0"
                                        Padding="0" IsTabStop=">
                                    <StackPanel Grid.Column="1" x:Name="LegendItemsArea" Margin="10,0,10,10" />
                                </ScrollViewer>
                            </Grid>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <!-- Style for LegendItem objects -->
        <Style x:Key="rscLegendItemSpanStyle" TargetType="ig:LegendItem">
            <Setter Property="IsTabStop" Value="/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ig:LegendItem">
                        <StackPanel Orientation="Horizontal" Margin="0,0,0,0">
                            <!-- Displays legend item as a Border to represent span event -->
                            <Border Width="22" Height="10" CornerRadius="5"
                                    Background="{TemplateBinding Fill}"
                                    BorderBrush="{TemplateBinding Stroke}"
                                    BorderThickness="1" Margin="6,4,6,6" >
                            </Border>
                            <ig:Title Content="{TemplateBinding Content}" />
                        </StackPanel>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="rscLegendItemRectStyle" TargetType="ig:LegendItem">
            <Setter Property="IsTabStop" Value="/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ig:LegendItem">
                        <StackPanel Orientation="Horizontal" Margin="0,0,0,0">
                            <!-- Displays legend item as a rectangle -->
                            <Rectangle Width="12" Height="12" Margin="12,2,12,6"
                                     Fill="{TemplateBinding Fill}"
                                     Stroke="{TemplateBinding Stroke}"
                                     StrokeThickness="1.5" />
                            <ig:Title Content="{TemplateBinding Content}" />
                        </StackPanel>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </UserControl.Resources>

Set styles for the XamTimeline control’s Legend, LegendItem and EventPoint series

In XAML:

        <ig:XamTimeline x:Name="xamTimeline"
                             Width="1000" Height="580" Margin="15"
                             LegendStyle="{StaticResource rscLegendStyle}">
            <!-- TODO: Add your Axis properties ... -->
            <!-- Set Data in Timeline Series -->
            <ig:XamTimeline.Series>
                <!-- Historic Event Series with custom style for EventPoint and Legend Item -->
                <ig:NumericTimeSeries Title="Historic Events" Fill="White" Position="BottomOrRight"
                                        EventPointStyle="{StaticResource rscEventPointStyle}"
                                        LegendItemStyle="{StaticResource rscLegendItemRectStyle}">
                    <!-- TODO: Add your Numeric Time Entries ... -->
                </ig:NumericTimeSeries>
                <!-- Persian Empire Event Series with custom style for Legend Item -->
                <ig:NumericTimeSeries Title="Persian Empire" Fill="Magenta" Position="BottomOrRight"
                                        LegendItemStyle="{StaticResource rscLegendItemSpanStyle}">
                    <!-- TODO: Add your Numeric Time Entries ... -->
                </ig:NumericTimeSeries>
                <!-- Mayan Empire Event Series with custom style for Legend Item -->
                <ig:NumericTimeSeries Title="Mayan Empire" Fill="Yellow" Position="BottomOrRight"
                                        LegendItemStyle="{StaticResource rscLegendItemSpanStyle}">
                    <!-- TODO: Add your Numeric Time Entries ... -->
                </ig:NumericTimeSeries>
                <!-- Roman Empire Event Series with custom style for Legend Item -->
                <ig:NumericTimeSeries Title="Roman Empire" Fill="Red" Position="TopOrLeft"
                                        LegendItemStyle="{StaticResource rscLegendItemSpanStyle}">
                    <!-- TODO: Add your Numeric Time Entries ... -->
                </ig:NumericTimeSeries>
                <!-- Egypt Empire with custom style for Legend Item -->
                <ig:NumericTimeSeries Title="Egypt Empire" Fill="Lime" Position="TopOrLeft"
                                        LegendItemStyle="{StaticResource rscLegendItemSpanStyle}">
                    <!-- TODO: Add your Numeric Time Entries ... -->
                </ig:NumericTimeSeries>
                <!-- Spanish Empire Event Series with custom style for Legend Item -->
                <ig:NumericTimeSeries Title="Spanish Empire" Fill="Coral" Position="TopOrLeft"
                                        LegendItemStyle="{StaticResource rscLegendItemSpanStyle}">
                    <!-- TODO: Add your Numeric Time Entries ... -->
                </ig:NumericTimeSeries>
                <!-- French Empire Event Series with custom style for Legend Item -->
                <ig:NumericTimeSeries Title="French Empire" Fill="Aqua" Position="TopOrLeft"
                                        LegendItemStyle="{StaticResource rscLegendItemSpanStyle}">
                    <!-- TODO: Add your Numeric Time Entries ... -->
                </ig:NumericTimeSeries>
            </ig:XamTimeline.Series>
          </ig:XamTimeline>

XamTimeline Style Legend and LegendItems 01.png

WPF | Help Topics

Styling Legend and Legend Items