C# and WPF Calendar Control

Question

I want to be able to highlight multiple dates from a list in a calendar control on WPF.

Answer 1

Hi,@Sphiwe . Welcome Microsoft Q&A. For highlighting multiple dates on the calendar, you could refer to the code below.

Xaml:
241229-highlight-multiple-days-on-calendar.txt
Codebehind:

 public class MainViewModel  
    {  
        public List<DateTime> Dates { get; } = new List<DateTime>();  
  
        public MainViewModel()  
        {  
            this.Dates.Add(DateTime.Today);  
            this.Dates.Add(DateTime.Today.AddDays(1));  
            this.Dates.Add(DateTime.Today.AddDays(5));  
            this.Dates.Add(DateTime.Today.AddDays(-3));  
        }  
    }  
    public class MyCalendarConverter : IMultiValueConverter  
    {  
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)  
        {  
            var date = (DateTime)values[0];  
            var dates = values[1] as List<DateTime>;  
            return dates.Contains(date);  
        }  
        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)  
        {  
            throw new NotImplementedException();  
        }  
    }  

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