using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using LiveCharts;
using LiveCharts.Configurations;
using LiveCharts.Defaults;
namespace Wpf.CartesianChart.PointState
{
/// <summary>
/// Interaction logic for PointStateExample.xaml
/// </summary>
public partial class PointStateExample : UserControl
{
public PointStateExample()
{
InitializeComponent();
var r = new Random();
Values = new ChartValues<ObservableValue>
{
new ObservableValue(r.Next(10, 400)),
new ObservableValue(r.Next(10, 400)),
new ObservableValue(r.Next(10, 400)),
new ObservableValue(r.Next(10, 400)),
new ObservableValue(r.Next(10, 400)),
new ObservableValue(r.Next(10, 400))
};
//Lets define a custom mapper, to set fill and stroke
//according to chart values...
Mapper = Mappers.Xy<ObservableValue>()
.X((item, index) => index)
.Y(item => item.Value)
.Fill(item => item.Value > 200 ? DangerBrush : null)
.Stroke(item => item.Value > 200 ? DangerBrush : null);
Formatter = x => x + " ms";
DangerBrush = new SolidColorBrush(Color.FromRgb(238,83,80));
DataContext = this;
}
public Func<double, string> Formatter { get; set; }
public ChartValues<ObservableValue> Values { get; set; }
public Brush DangerBrush { get; set; }
public CartesianMapper<ObservableValue> Mapper { get; set; }
private void UpdateDataOnClick(object sender, RoutedEventArgs e)
{
var r = new Random();
foreach (var observable in Values)
{
observable.Value = r.Next(10, 400);
}
}
}
}