C# 数组转为 Table

来源:明日科技

C# 数组转为table的实例。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    //http://www.cnblogs.com/Holmes-Jin/archive/2012/04/25/2470671.html


    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }


        private void button1_Click_1(object sender, EventArgs e)
        {
            dataGridView1.DataSource = ArrayToDataTable.Convert("haha", new string[] { "1", "2", "3", "4", "5", "6" });

        }

        private void button2_Click_1(object sender, EventArgs e)
        {
            string[,] array3D = {
                                        { "1", "数组转DataTable 1", "0"},
                                        { "2", "数组转DataTable 2", "1"},
                                        { "3", "数组转DataTable 3", "1"},
                                        { "4", "数组转DataTable 4", "2"},
                                        { "5", "数组转DataTable 5", "2"},
                                        { "6", "数组转DataTable 6", "5"},
                                        };
            dataGridView1.DataSource = ArrayToDataTable.Convert(new string[] { "haha1", "haha2", "haha3" }, array3D);
        }

    }

    class ArrayToDataTable
    {
        /// <summary>  
        /// 把一个一维数组转换为DataTable  
        /// </summary>  
        /// <param name="ColumnName">列名</param>  
        /// <param name="Array">一维数组</param>  
        /// <returns>返回DataTable</returns>  
        /// <remarks>柳永法 http://www.yongfa365.com/ </remarks>  
        public static DataTable Convert(string ColumnName, string[] Array)
        {
            DataTable dt = new DataTable();
            dt.Columns.Add(ColumnName, typeof(string));

            for (int i = 0; i < Array.Length; i++)
            {
                DataRow dr = dt.NewRow();
                dr[ColumnName] = Array[i].ToString();
                dt.Rows.Add(dr);
            }

            return dt;
        }


        /// <summary>  
        /// 反一个M行N列的二维数组转换为DataTable  
        /// </summary>  
        /// <param name="ColumnNames">一维数组，代表列名，不能有重复值</param>  
        /// <param name="Arrays">M行N列的二维数组</param>  
        /// <returns>返回DataTable</returns>  
        /// <remarks>柳永法 http://www.yongfa365.com/ </remarks>  
        public static DataTable Convert(string[] ColumnNames, string[,] Arrays)
        {
            DataTable dt = new DataTable();

            foreach (string ColumnName in ColumnNames)
            {
                dt.Columns.Add(ColumnName, typeof(string));
            }

            for (int i1 = 0; i1 < Arrays.GetLength(0); i1++)
            {
                DataRow dr = dt.NewRow();
                for (int i = 0; i < ColumnNames.Length; i++)
                {
                    dr[i] = Arrays[i1, i].ToString();
                }
                dt.Rows.Add(dr);
            }

            return dt;

        }


        /// <summary>  
        /// 反一个M行N列的二维数组转换为DataTable  
        /// </summary>  
        /// <param name="Arrays">M行N列的二维数组</param>  
        /// <returns>返回DataTable</returns>  
        /// <remarks>柳永法 http://www.yongfa365.com/ </remarks>  
        public static DataTable Convert(string[,] Arrays)
        {
            DataTable dt = new DataTable();

            int a = Arrays.GetLength(0);
            for (int i = 0; i < Arrays.GetLength(1); i++)
            {
                dt.Columns.Add("col" + i.ToString(), typeof(string));
            }

            for (int i1 = 0; i1 < Arrays.GetLength(0); i1++)
            {
                DataRow dr = dt.NewRow();
                for (int i = 0; i < Arrays.GetLength(1); i++)
                {
                    dr[i] = Arrays[i1, i].ToString();
                }
                dt.Rows.Add(dr);
            }

            return dt;

        }

    }
}