Column Width

This sample uses C# 13 preview features such as partial properties, it also uses features from the CommunityToolkit.Mvvm package, you can learn more about it here.

This web site wraps every sample using a UserControl instance, but LiveCharts controls can be used inside any container.

sample image

View model

namespace ViewModelsSamples.Bars.Spacing;

public class ViewModel
{
    public double[] Values { get; set; } =
        [20, 50, 40, 20, 40, 30, 50, 20, 50, 40];
}

XAML

<UserControl
    x:Class="WPFSample.Bars.Spacing.View"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    xmlns:lvc="clr-namespace:LiveChartsCore.SkiaSharpView.WPF;assembly=LiveChartsCore.SkiaSharpView.WPF"
    xmlns:vms="clr-namespace:ViewModelsSamples.Bars.Spacing;assembly=ViewModelsSamples">

    <UserControl.DataContext>
        <vms:ViewModel/>
    </UserControl.DataContext>

    <!--
    Padding: Defines the distance between every bars in the series
    MaxBarWidth: Defines the maximum width a bar can take
    -->

    <lvc:CartesianChart>
        <lvc:CartesianChart.Series>
            <lvc:SeriesCollection>
                <lvc:XamlColumnSeries
                    Values="{Binding Values}"
                    Padding="0"
                    MaxBarWidth="99999"/>
            </lvc:SeriesCollection>
        </lvc:CartesianChart.Series>
    </lvc:CartesianChart>

</UserControl>

Articles you might also find useful:

Cartesian chart control
Column series properties