如何修复数组错误？ [英] How do I fix an array error?

问题描述

我有一个字符串数组：

Hi,
I have have a string array:

public class Example
{
    public string[] Layers = new string[] { };

    public Example()
    {
        //Just to be safe...
        this.Layers = new string[] { };
    }
}

每当我尝试访问该字符串数组的成员时：

and whenever I try to access a member of that string array:

Example test = new Example();
test.Layers[Convert.ToInt32(numericUpDown1.Value)] = textbox1.Text;

它总是给我一个IndexOutOfRange异常。为什么会发生这种情况，我该如何解决？因为从逻辑上讲它应该有用吗？..也有人可以在阵列开始的地方回答吗？它是1还是0？



谢谢Jake

it always gives me an IndexOutOfRange exception. Why is this happening and how can I fix it? Because logically it should work?.. and also can someone please answer at where an array starts? Is it 1 or 0?

Thanks Jake

推荐答案

你需要提一下数组的大小

You need to mention the size of the array

public class Example
   {
       public string[] Layers = new string[7] ;

       public Example()
       {
           //Just to be safe...
           this.Layers = new string[7] ;
       }
   }

Morevover数组索引从C开始0＃



看看这个



http://stackoverflow.com/questions/1603599/array-of-string-with-unknown-size [ ^ ]

根据你的代码，没有成员（它是一个零长度的数组）。

你需要这样的东西：

According to you code there are no members (it's a zero length array).
You need something like this:

this.Layers = new string[] { "a", "b", "c" };

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