Date Time Scale
This sample uses C# 12 features, it also uses features from the CommunityToolkit.Mvvm package, you can learn more about it here.
This web site wraps every sample using a ContentPage instance, but LiveCharts controls can be used inside any container.
View model
using System;
using LiveChartsCore;
using LiveChartsCore.Defaults;
using LiveChartsCore.Kernel.Sketches;
using LiveChartsCore.SkiaSharpView;
namespace ViewModelsSamples.Axes.DateTimeScaled;
public class ViewModel
{
public ISeries[] Series { get; set; } = [
new ColumnSeries<DateTimePoint>
{
Values = [
new() { DateTime = new(2021, 1, 1), Value = 3 },
new() { DateTime = new(2021, 1, 2), Value = 6 },
new() { DateTime = new(2021, 1, 3), Value = 5 },
new() { DateTime = new(2021, 1, 4), Value = 3 },
new() { DateTime = new(2021, 1, 5), Value = 5 },
new() { DateTime = new(2021, 1, 6), Value = 8 },
new() { DateTime = new(2021, 1, 7), Value = 6 }
]
}
];
// You can use the DateTimeAxis class to define a date time based axis // mark
// The first parameter is the time between each point, in this case 1 day // mark
// you can also use 1 year, 1 month, 1 hour, 1 minute, 1 second, 1 millisecond, etc // mark
// The second parameter is a function that receives a date and returns the label as string // mark
public ICartesianAxis[] XAxes { get; set; } = [
new DateTimeAxis(TimeSpan.FromDays(1), date => date.ToString("MMMM dd"))
];
}
XAML
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="MauiSample.Axes.DateTimeScaled.View"
xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:lvc="clr-namespace:LiveChartsCore.SkiaSharpView.Maui;assembly=LiveChartsCore.SkiaSharpView.Maui"
xmlns:vms="clr-namespace:ViewModelsSamples.Axes.DateTimeScaled;assembly=ViewModelsSamples"
>
<ContentPage.BindingContext>
<vms:ViewModel/>
</ContentPage.BindingContext>
<lvc:CartesianChart
Series="{Binding Series}"
YAxes="{Binding YAxes}">
</lvc:CartesianChart>
</ContentPage>
