如何搜索一个多维数组？ [英] How do I search a multi-dimensional array?

问题描述

在C＃中，

Array.Find<T>(arrayName, value);

搜索一维阵列。反正是有一个多维数组做到这一点（例如 myArray的[,,] ）？

推荐答案

使用Excel和VSTO工作，我处理多维数组的所有时间。有像Array.Find）多维数组（没有内置功能。

Working with Excel and VSTO, I deal with multidimensional arrays all the time. There are no built-in functions for multidimensional array like Array.Find().

您基本上有两种选择：创建您自己的helper方法和实施通用搜索模式出现，或产生域对象关联到多维数组的内容列表。我个人倾向于选择后者。

You basically have two choices: create your own helper methods and implement a generic search pattern there, or generate a list of domain objects correlating to the contents of the multidimensional array. I personally have tended to choose the latter option.

如果你选择写一个辅助方法，它可能看起来是（非常粗略地）是这样的：

If you choose to write a helper method, it could look something (very roughly) like this:

// you could easily modify this code to handle 3D arrays, etc.
public static class ArrayHelper
{
    public static object FindInDimensions(this object[,] target, 
      object searchTerm)
    {
        object result = null;
        var rowLowerLimit = target.GetLowerBound(0);
        var rowUpperLimit = target.GetUpperBound(0);

        var colLowerLimit = target.GetLowerBound(1);
        var colUpperLimit = target.GetUpperBound(1);

        for (int row = rowLowerLimit; row < rowUpperLimit; row++)
        {
            for (int col = colLowerLimit; col < colUpperLimit; col++)
            {
                // you could do the search here...
            }
        }

        return result;
    }
}

您会引用静态扩展这样在其他您的应用程序的部分代码：

You would refer to the static extension like this in other parts of your application code:

object[,] myArray = GetMyArray(); // gets an array[,]
myArray.FindInDimensions(someObject);

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