using System;

    using System.Data;  

    namespace ArrayToDataTable

    {

        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;  

            }  

        }

    }  

示例代码：

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        using System;

        using System.Collections.Generic;

        using System.ComponentModel;

        using System.Data;

        using System.Drawing;

        using System.Text;

        using System.Windows.Forms;  

        namespace ArrayToDataTable

        {

            public partial class Form1 : Form

            {

                public Form1()

                {

                    InitializeComponent();

                }  

                private void button1_Click(object sender, EventArgs e)

                {

                    dataGridView1.DataSource = ArrayToDataTable.Convert("haha", new string[] { "1", "2", "3", "4", "5", "6" });

                }  

                private void button2_Click(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);  

                }  

                private void button3_Click(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(array3D);  

                }  

                private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)

                {

                    System.Diagnostics.Process.Start("Iexplore.exe", "http://www.yongfa365.com/");

                }

            }

        }