Question

我使用按钮将数组添加到数组中，并给出了错误

我想在数组中包含带有按钮的数组，我可以输出它们，但它给出了错误

class CalendarBase
{
    public Button[] Mounth = new Button[12] 
    {
        public Button[] January = new Button[32];
        public Button[] February = new Button[32];
        public Button[] March = new Button[32];
        public Button[] April = new Button[32];
        public Button[] May = new Button[32];
        public Button[] June = new Button[32];
        public Button[] July = new Button[32];
        public Button[] August = new Button[32];
        public Button[] September = new Button[32];
        public Button[] November = new Button[32];
        public Button[] December = new Button[32];
    }
}

Answer 1

初始化数组的方式是错误的，这就是初始化12个按钮的数组的方式

class CalendarBase
{
    public Button[] Months = new Button[12] 
    {
        new Button(),
        new Button(),
        new Button(),
        new Button(),
        new Button(),
        new Button(),
        new Button(),
        new Button(),
        new Button(),
        new Button(),
        new Button(),
        new Button()
    }
}

或更简洁

Button[] Months = new Button[12];
for(int i =0; i<12; i++)
    Months[i] = new Button();

如果您希望每个月都能访问一个命名成员的按钮，则可以为每个成员创建一个属性：

public Button January => Months[0];
public Button February=> Months[1];
//etc

虽然还不清楚您想要什么。如果您想要一个由32个按钮组成的12个数组，则可以这样初始化：

Button[][] Months = new Button[12][];
for (int i = 0; i < 12; i++)
{
    Months[i]= new Button[32];
    for (int j = 0; j < 32; j++)
        Months[i][j] = new Button();
}

如果您热衷于单行处理，可以这样完成：

Months = Enumerable.Range(0, 12)
                   .Select(e =>  
                        Enumerable.Range(0, 32)
                        .Select(f => new Button()).ToArray())
                   .ToArray();

Answer 2

通过@ tim-rutter扩展出色的答案：

使用Dictionary可以最好地实现我想做的事情。字典允许您指定唯一键（在本例中为Month）并将其与值（在本例中为按钮数组）关联。

简单实现：

class CalendarBase
{

        public Dictionary<string, Button[]> Month = new Dictionary<string, Button[]>()
        {
            {"January", new Button[32] },
            {"February", new Button[32] },
            {"March", new Button[32] },
            {"April", new Button[32] },
            {"May", new Button[32] },
            {"June", new Button[32] },
            {"July", new Button[32] },
            {"August", new Button[32] },
            {"September", new Button[32] },
            {"October", new Button[32] },
            {"November", new Button[32] },
            {"December", new Button[32] },
        };
}

然后，您可以像访问数组一样访问每个按钮数组：

var februaryButtons = Month["February"];

更好的实现是将Enum用作键，这样您就不必担心在尝试访问值时字符串的拼写错误会引发异常。

更好：

enum Months
    {
        January,
        February,
        March,
        April,
        May,
        June,
        July,
        August,
        September,
        October,
        November,
        December
    }

class CalendarBase
{
        public Dictionary<string, Button[]> Month = new Dictionary<string, Button[]>()
        {
            {Months.January, new Button[32] },
            {Months.February, new Button[32] },
            {Months.March, new Button[32] },
            {Months.April, new Button[32] },
            {Months.May, new Button[32] },
            {Months.June, new Button[32] },
            {Months.July, new Button[32] },
            {Months.August, new Button[32] },
            {Months.September, new Button[32] },
            {Months.October, new Button[32] },
            {Months.November, new Button[32] },
            {Months.December, new Button[32] },
        };
}

然后，您可以像这样访问每个按钮阵列：

var februaryButtons = Month[Months.February];

当我在数组中添加按钮时。我收到一个错误“长度为“ 12”的数组初始化器是必需的”

2 个答案: