C# 数组转换为DataTable 的三个方法

C# 数组转换为DataTable 的三个方法

 

    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/");
                }
            }
        }