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/");
}
}
}