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Legend Box Formatting


Mick
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If all labels are similar or you do not care about alignment you could change the Panel used by the legend as follows

<cfx:Chart.LegendBox>

  <cfx:LegendBox Visibility="Visible" DockPanel.Dock="Bottom">

  <cfx:LegendBox.ItemsPanel>

  <ItemsPanelTemplate>

  <WrapPanel/>

  </ItemsPanelTemplate>

  </cfx:LegendBox.ItemsPanel>

<cfx:LegendBox.ContainerStyle>

<Style TargetType="{x:Type ItemsControl}">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate>

<ItemsPresenter/>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</cfx:LegendBox.ContainerStyle>

  </cfx:LegendBox>

</cfx:Chart.LegendBox>

Note that we are also changing the ContainerStyle, if you do not this ItemsControl will use a ScrollViewer around the panel that would defeat the WrapPanel purpose. If you do care about alignment and have knowledge about the number of items and size of the chart you could use UniformGrid instead.

<cfx:Chart.LegendBox>

  <cfx:LegendBox Visibility="Visible" DockPanel.Dock="Bottom">

  <cfx:LegendBox.ItemsPanel>

  <ItemsPanelTemplate>

<UniformGrid Rows="2"/>

  </ItemsPanelTemplate>

  </cfx:LegendBox.ItemsPanel>

  </cfx:LegendBox>

</cfx:Chart.LegendBox>

 

When using UniformGrid we do not need to set ContainerStyle.

Obviously both solutions are not optimal so starting in build 3688 (which should be available in a couple of days) you will be able to use a custom Chart FX panel called UniformOrientationGrid which will arrange items in a UniformGrid calculating the number of rows/columns automatically.

<cfx:Chart.LegendBox>

  <cfx:LegendBox Visibility="Visible" DockPanel.Dock="Bottom">

  <cfx:LegendBox.ItemsPanel>

  <ItemsPanelTemplate>

<cfxControls:UniformOrientationGrid/>

  </ItemsPanelTemplate>

  </cfx:LegendBox.ItemsPanel>

<cfx:LegendBox.ContainerStyle>

<Style TargetType="{x:Type ItemsControl}">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate>

<ItemsPresenter/>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</cfx:LegendBox.ContainerStyle>

  </cfx:LegendBox>

</cfx:Chart.LegendBox>

JuanC

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