在Visual Studio/Xamarin/C＃中未识别字典

Question

我在这里迷路了，由于某些原因，我从第10行遇到了多个错误。我正在使用Xamarin构建一个应用程序，并且我正在尝试创建一个字典，由于某种原因，我会得到以下错误

Error   IDE1007 The name 'exerciseTypes.Add' does not exist in the current context.
Error   IDE1007 The name 'exerciseTypes' does not exist in the current context.
Error   IDE1007 The name 'Add' does not exist in the current context.   

using System;
using System.Collections.Generic;
using System.Text;

namespace Trainer_App
{
    internal class Exercise
    {
        public static Dictionary<string, bool> exerciseTypes = new Dictionary<string, bool> ();
        exerciseTypes.Add("Warmup",false);
        private string name;
        private int min_num_balls;
        private int[] num_participants;
        private string court_type;
        private string[] accessories;
        private static int id = 0;

        public Exercise()
        {
        }
    }
}

编辑：我希望字典是班级的一部分，而不是对象

Answer 1

您不能将方法调用直接放在类声明下。但是，您可以将其移入构造函数中：

using System;
using System.Collections.Generic;
using System.Text;

namespace Trainer_App
{
    internal class Exercise
    {
        public Dictionary<string, bool> exerciseTypes = new Dictionary<string, bool> ();
        private string name;
        private int min_num_balls;
        private int[] num_participants;
        private string court_type;
        private string[] accessories;
        private static int id = 0;

        public Exercise()
        {
            exerciseTypes.Add("Warmup",false); // Here!
        }
    }
}