C#实现对二维数组排序的方法

本文实例讲述了C#实现对二维数组排序的方法。分享给大家供大家参考。具体实现方法如下：

/// <summary>
/// A generic routine to sort a two dimensional array of a specified type based on the specified column.
/// </summary>
/// <param name="array">The array to sort.</param>
/// <param name="sortCol">The index of the column to sort.</param>
/// <param name="order">Specify "DESC" or "DESCENDING" for a descending sort otherwise
/// leave blank or specify "ASC" or "ASCENDING".</param>
/// <remarks>The original array is sorted in place.</remarks>
/// <see cref="http://stackoverflow.com/questions/232395/how-do-i-sort-a-two-dimensional-array-in-c"/>
private static void Sort<T>(T[,] array, int sortCol, string order)
{
 int colCount = array.GetLength(1), rowCount = array.GetLength(0);
 if (sortCol >= colCount || sortCol < 0)
   throw new System.ArgumentOutOfRangeException("sortCol", "The column to sort on must be contained within the array bounds.");
 DataTable dt = new DataTable();
 // Name the columns with the second dimension index values, e.g., "0", "1", etc.
 for (int col = 0; col < colCount; col++)
 {
   DataColumn dc = new DataColumn(col.ToString(), typeof(T));
   dt.Columns.Add(dc);
 }
 // Load data into the data table:
 for (int rowindex = 0; rowindex < rowCount; rowindex++)
 {
   DataRow rowData = dt.NewRow();
   for (int col = 0; col < colCount; col++)
     rowData[col] = array[rowindex, col];
   dt.Rows.Add(rowData);
 }
 // Sort by using the column index = name + an optional order:
 DataRow[] rows = dt.Select("", sortCol.ToString() + " " + order);
 for (int row = 0; row <= rows.GetUpperBound(0); row++)
 {
   DataRow dr = rows[row];
   for (int col = 0; col < colCount; col++)
   {
     array[row, col] = (T)dr[col];
   }
 }
 dt.Dispose();
}

希望本文所述对大家的C#程序设计有所帮助。