csharp read execl and write xml

/*



编写：围城(solq)



日期:2012-5-8



blog:http://www.cnblogs.com/solq/

说明：读取 execl2007 注意，要安装驱动，否则不能识别2007，保存xml 时，注意编码问题。。不然会出错







表格格式:



行1：不重要的标题，，



行2：对应行1的英文名，，，程序自动对这个名来生成 xml 节点属性



行3+：。。。。xxxxxxx数据



*/

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;

using System.Data.OleDb;

using System.Xml;





namespace readexecl

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();            

        }



        private void button1_Click(object sender, EventArgs e)

        {

            OpenFileDialog openFileDialog1 = new OpenFileDialog();

            openFileDialog1.InitialDirectory = "c:";

            openFileDialog1.Filter = "*.xlsx|*.xlsx";

            openFileDialog1.FilterIndex = 2;

            openFileDialog1.RestoreDirectory = true;

            if (openFileDialog1.ShowDialog() == DialogResult.OK)

            {

                this.textBox1.Text = openFileDialog1.FileName;

                Connection = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=\"Excel 12.0;HDR=yes;IMEX=1\";", this.textBox1.Text); 

            }



        }



        private string save_file = "";

        private string table = "";

        private void button2_Click(object sender, EventArgs e)

        {

            if (textBox2.Text == "")

            {

                MessageBox.Show("请输入 输出的表格。。。。");

                return;

            }

            if (textBox1.Text == "")

            {

                MessageBox.Show("请选择XML文件。。。。");

                return;

            }

            SaveFileDialog saveFileDialog1 = new SaveFileDialog();

            //设置文件类型  

            saveFileDialog1.Filter = "All files(*.*)|*.*|xml(*.xml)|*.xml";



            //设置默认文件类型显示顺序  

            saveFileDialog1.FilterIndex = 2;



            //保存对话框是否记忆上次打开的目录  

            saveFileDialog1.RestoreDirectory = true;

            if (saveFileDialog1.ShowDialog() == DialogResult.OK)

            {

                save_file = saveFileDialog1.FileName;

                readExecl();

            }

        }



        /////////////////////execl////////////////////////



        string Connection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=d:/test.xlsx;Extended Properties=\"Excel 12.0;HDR=no;IMEX=1\";";

        string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:/test.xls;" +  "Extended Properties='Excel 8.0'";

        private void readExecl()

        {



            OleDbConnection con = new OleDbConnection(Connection);



            #region



            /*

                获取多少个表。。。。。

             */

            con.Open();

            DataTable sheetsName = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "Table" });



            //Console.WriteLine(sheetsName.Rows.Count);



            bool check = false;

            for (int t = 0; t < sheetsName.Rows.Count; t++)

            {

                if (sheetsName.Rows[t][2].ToString().Equals(this.textBox2.Text + "$"))

                {

                    check = true;

                    break;

                }

                Console.WriteLine(sheetsName.Rows[t][2].ToString()); // get table name

            }



            if (!check)

            {

                MessageBox.Show("没有表格名!!! " + this.textBox2.Text);

                return;

            }



            #endregion

            /*

            //读取方式一      

            OleDbDataAdapter myCommand = new OleDbDataAdapter("select * from [Sheet1$]", con);



            DataTable dt = new DataTable();

            myCommand.Fill(dt);



            DataSet set = new DataSet();

            myCommand.Fill(set);

           

            foreach (DataRow r in dt.Rows)

            {

               

                String str = r[0].ToString();

                ////Console.WriteLine(str);

            }*/



            /*

                如果只想读取前两列可以用：select * from [Sheet1$A:B]

                如果只想读取A1到B2的内容，就用：select * from [Sheet1$A1:B2]

             */

            //读取方式二

            string sql = string.Format("SELECT * FROM [{0}$] ", textBox2.Text);

            OleDbCommand myOleDbCommand = new OleDbCommand(sql, con);

            OleDbDataReader myDataReader = myOleDbCommand.ExecuteReader();



            List<string> fields = new List<string>();



            if (myDataReader.Read())

            {

                //读取英文头表，字段

                for (int i = 0; i < myDataReader.FieldCount; i++)

                {

                    string c = Convert.ToString(myDataReader.GetValue(i)).Trim();

                    //Console.Write(c + "\t");



                    fields.Add(c);

                }

            }



            ////////////////////////////////////xml////////////////////////////////////////////

            XmlDocument doc = new XmlDocument();

            XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "UTF-8", null);

            doc.AppendChild(dec);



            //创建一个根节点（一级）  

            XmlElement root = doc.CreateElement("datas"); 



            doc.AppendChild(root);



            //读取主体

            while (myDataReader.Read())

            {

                XmlElement element = doc.CreateElement("data");

                for (int i = 0; i < myDataReader.FieldCount; i++)

                {

                    string value = Convert.ToString(myDataReader.GetValue(i)).Trim();

                    Console.Write(value + "\t");



                    element.SetAttribute(fields[i].ToString(), value);



                }

                root.AppendChild(element);

                //Console.WriteLine("");

            }



            try

            {

                doc.Save(save_file);

            }

            catch (Exception e)

            {

                MessageBox.Show(e.Message);

            }



            myDataReader.Dispose();

            con.Close();

        }



        private void readExecl2()

        {



            OleDbConnection con = new OleDbConnection(Connection);

            con.Open();

            DataTable sheetsName = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "Table" }); 



            for (int t = 0; t < sheetsName.Rows.Count; t++)

            {

                string sql = string.Format("SELECT * FROM [{0}] ", sheetsName.Rows[t][2].ToString());

                OleDbCommand myOleDbCommand = new OleDbCommand(sql, con);

                OleDbDataReader myDataReader = myOleDbCommand.ExecuteReader();



                List<string> fields = new List<string>();



                if (myDataReader.Read())

                {

                    //读取英文头表，字段

                    for (int i = 0; i < myDataReader.FieldCount; i++)

                    {

                        string c = Convert.ToString(myDataReader.GetValue(i)).Trim();

                        fields.Add(c);

                    }

                }



                ////////////////////////////////////xml////////////////////////////////////////////

                XmlDocument doc = new XmlDocument();

                XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "UTF-8", null);

                doc.AppendChild(dec);



                //创建一个根节点（一级）  

                XmlElement root = doc.CreateElement("datas");



                doc.AppendChild(root);



                //读取主体

                while (myDataReader.Read())

                {

                    XmlElement element = doc.CreateElement("data");

                    for (int i = 0; i < myDataReader.FieldCount; i++)

                    {

                        string value = Convert.ToString(myDataReader.GetValue(i)).Trim();

                        Console.Write(value + "\t");



                        element.SetAttribute(fields[i].ToString(), value);



                    }

                    root.AppendChild(element);

                    //Console.WriteLine("");

                }



                string file=sheetsName.Rows[t][2].ToString().Replace("$",".xml");

                file = this.textBox3.Text +"/"+file;

                try

                {

                    doc.Save(file);

                }

                catch (Exception e)

                {

                    MessageBox.Show(e.Message);

                }

                myDataReader.Dispose();

            } 



            

            con.Close();

        }



        private void button3_Click(object sender, EventArgs e)

        {

            if (textBox1.Text == "")

            {

                MessageBox.Show("请选择XML文件。。。。");

                return;

            }

            if (textBox3.Text == "")

            {

                MessageBox.Show("请输入保存目录。。。。");

                return;

            }

            readExecl2();            

        }

      

    }

}