C#中如何实现EXCEL转换成TXT文档

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C#数据转换前excel中的数据格式如下:

设备名称 规格型号 设备编号  使用部门 固定资产编号

电脑1 IBM5660 10001 管理部 100010001

电脑2 IBM5661 10002 研发部 100010002

电脑3 IBM5662 10003 管理部 100010003

C#数据转换到TXT文档的格式:

"检测设备资产标签","设备名称","电脑1","规格型号","IBM5660","设备编号","10001","使用部门","管理部","固定资产编号","100010001"

"检测设备资产标签","设备名称","电脑2","规格型号","IBM5661","设备编号","10002","使用部门","研发部","固定资产编号","100010002"

"检测设备资产标签","设备名称","电脑3","规格型号","IBM5662","设备编号","10003","使用部门","管理部","固定资产编号","100010003"
end

页面设计代码:

namespace ExcelToTxt  {      partial class Form1      {          /// <summary>         /// 必需的设计器变量。          /// </summary>         private System.ComponentModel.IContainer components = null;           /// <summary>         /// 清理所有正在使用的资源。          /// </summary>         /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>         protected override void Dispose(bool disposing)          {              if (disposing && (components != null))              {                  components.Dispose();              }              base.Dispose(disposing);          }           #region Windows 窗体设计器生成的代码           /// <summary>         /// 设计器支持所需的方法 - 不要          /// 使用代码编辑器修改此方法的内容。          /// </summary>         private void InitializeComponent()          {              this.dgvShow = new System.Windows.Forms.DataGridView();              this.btnSelect = new System.Windows.Forms.Button();              this.btnChange = new System.Windows.Forms.Button();              ((System.ComponentModel.ISupportInitialize)(this.dgvShow)).BeginInit();              this.SuspendLayout();              //               // dgvShow              //               this.dgvShow.AllowUserToAddRows = false;              this.dgvShow.AllowUserToDeleteRows = false;              this.dgvShow.AllowUserToResizeRows = false;              this.dgvShow.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;              this.dgvShow.Dock = System.Windows.Forms.DockStyle.Top;              this.dgvShow.Location = new System.Drawing.Point(0, 0);              this.dgvShow.Name = "dgvShow";              this.dgvShow.RowTemplate.Height = 23;              this.dgvShow.Size = new System.Drawing.Size(885, 600);              this.dgvShow.TabIndex = 0;              //               // btnSelect              //               this.btnSelect.Location = new System.Drawing.Point(202, 611);              this.btnSelect.Name = "btnSelect";              this.btnSelect.Size = new System.Drawing.Size(148, 23);              this.btnSelect.TabIndex = 1;              this.btnSelect.Text = "选择excel文件";              this.btnSelect.UseVisualStyleBackColor = true;              this.btnSelect.Click += new System.EventHandler(this.btnSelect_Click);              //               // btnChange              //               this.btnChange.Location = new System.Drawing.Point(403, 611);              this.btnChange.Name = "btnChange";              this.btnChange.Size = new System.Drawing.Size(152, 23);              this.btnChange.TabIndex = 2;              this.btnChange.Text = "转换为txt文档";              this.btnChange.UseVisualStyleBackColor = true;              this.btnChange.Click += new System.EventHandler(this.btnChange_Click);              //               // Form1              //               this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);              this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;              this.ClientSize = new System.Drawing.Size(885, 646);              this.Controls.Add(this.btnChange);              this.Controls.Add(this.btnSelect);              this.Controls.Add(this.dgvShow);              this.Name = "Form1";              this.Text = "文件转换";              ((System.ComponentModel.ISupportInitialize)(this.dgvShow)).EndInit();              this.ResumeLayout(false);           }           #endregion           private System.Windows.Forms.DataGridView dgvShow;          private System.Windows.Forms.Button btnSelect;          private System.Windows.Forms.Button btnChange;      }  }

C#数据转换实现代码:

using System;  using System.Collections.Generic;  using System.ComponentModel;  using System.Data;  using System.Data.OleDb;  using System.Drawing;  using System.Text;  using System.Windows.Forms;  using System.IO;    namespace ExcelToTxt  {      public partial class Form1 : Form      {          private DataTable dt; //存储EXCLE中的数据           public Form1()          {              InitializeComponent();              this.btnChange.Enabled = false;//初始化设置控件为不可用          }            /// <summary>          /// 该方法打开一个Excel文件          /// </summary>          /// <param name="sender"></param>          /// <param name="e"></param>          private void btnSelect_Click(object sender, EventArgs e)          {              string excelFilePath = ""; //存储打开的文件的路径                            OpenFileDialog selectFile = new OpenFileDialog();                            //选择打开的文件设置              selectFile.Filter = "Excel(*.xls)|*.xls";              selectFile.FilterIndex = 1;              selectFile.DefaultExt = "xls";              selectFile.AddExtension = true;              selectFile.RestoreDirectory = true;              selectFile.Multiselect = false;                            //选择文件              if (selectFile.ShowDialog() == DialogResult.OK)              {                  excelFilePath = selectFile.FileName;//获取选择的文件路径              }              else             {                  return;              }               //得到控件的数据源              dt = GetExcelData(excelFilePath);               //在显示控件中显示数据              ShowDataGridView();               //设置转换格式的控件可用              this.btnChange.Enabled = true;          }            /// <summary>          ///该方法将选择的EXCEL文件转换成TXT文档           /// </summary>          /// <param name="sender"></param>          /// <param name="e"></param>          private void btnChange_Click(object sender, EventArgs e)          {              string txtFilePath = "";//存储选择的TXT文档的文件名              SaveFileDialog saveTxtFile = new SaveFileDialog();               //选择保存的文件设置              saveTxtFile.Filter = "Text(.txt)|*.txt";              saveTxtFile.FilterIndex = 1;              saveTxtFile.DefaultExt = "txt";              saveTxtFile.AddExtension = true;              saveTxtFile.RestoreDirectory = true;              saveTxtFile.OverwritePrompt = true;               //选择创建文件的文件夹              if (saveTxtFile.ShowDialog() == DialogResult.OK)              {                  txtFilePath = saveTxtFile.FileName; //获取选择的文件路径              }              else             {                  return;              }               //将DataTable中的文件写入到txt文档中              Cursor.Current = Cursors.WaitCursor; //设置鼠标状态              int dtcols = dt.Columns.Count;              StringBuilder sbtxtdata = new StringBuilder(); ;  //临时存储从dt中读出的每一条数据                //先创建一个新的TXT文档              FileStream fsTxtFile = new FileStream(txtFilePath, FileMode.CreateNew, FileAccess.Write);              StreamWriter swTxtFile = new StreamWriter(fsTxtFile, Encoding.GetEncoding("gb2312") );               if (dtcols > 3)              {                  string[] tempstr = new string[11];                                    //设置固定的值                  tempstr[0] = "\"" + "检测设备资产标签" + "\"" + ",";                  tempstr[1] = "\"" + "设备名称" + "\"" + ",";                  tempstr[3] = "\"" + "规格型号" + "\"" + ",";                  tempstr[5] = "\"" + "设备编号" + "\"" + ",";                  tempstr[7] = "\"" + "使用部门" + "\"" + ",";                  tempstr[9] = "\"" + "固定资产编号" + "\"" + ",";                                     //标签2的格式写入Txt文档                  for(int rows = 0; rows < dt.Rows.Count; rows++)                  {                      for (int cols = 0; cols < dt.Columns.Count; cols++)                      {                          int tempindex = 2*(cols+1);                          tempstr[tempindex] = "\"" + dt.Rows[rows][cols].ToString() + "\"";                      }                       tempstr[2] = tempstr[2] + ",";                      tempstr[4] = tempstr[4] + ",";                      tempstr[6] = tempstr[6] + ",";                      tempstr[8] = tempstr[8] + ",";                      tempstr[10] = tempstr[10] + "\r\n";                       //将本行数据写入缓冲区                      foreach (string str in tempstr)                      {                          sbtxtdata.Append(str);                      }                      swTxtFile.Write(sbtxtdata);                                            //清空本行中的数据                      sbtxtdata.Remove(0, sbtxtdata.Length);                       //将数组中新添加的数据清空                      for (int i = 0; i < dt.Columns.Count; i++)                      {                          int tempindex = 2*(i+1);                          tempstr[tempindex] = "";                      }                  }              }              else             {                  string[] tempstr = new string[5];                  //标签0或1的格式写入Txt文档                  for (int rows = 0; rows < dt.Rows.Count; rows++)                  {                      for (int cols = 0; cols < dt.Columns.Count; cols++)                      {                          string temp = "";//临时存储当前时间                           if (cols == 0)                          {                              tempstr[0] = "\"" + dt.Rows[rows][cols] + "\"" + ",";                          }                          else if (cols == 1)                          {                              temp = dt.Rows[rows][cols].ToString();                              tempstr[1] = "\"" + temp.Substring(0, 4) + "\"" + ","; //截取年                              tempstr[2] = "\"" + temp.Substring(4, 2) + "\"" + ","; //截取月                              tempstr[3] = "\"" + temp.Substring(6, 2) + "\"" + ","; //截取日                          }                          else if (cols == 2)                          {                              tempstr[4] = "\"" + dt.Rows[rows][cols] + "\"" + "\r\n";                          }                      }                       //将本行数据写入缓冲区                      foreach (string str in tempstr)                      {                          sbtxtdata.Append(str);                      }                      swTxtFile.Write(sbtxtdata);                       //清空本行中的数据                      sbtxtdata.Remove(0, sbtxtdata.Length);                       //将数组中新添加的数据清空                      for (int i = 0; i < dt.Columns.Count; i++)                      {                          tempstr[i] = "";                      }                  }              }               //将数据写入文档              swTxtFile.Write("end");              swTxtFile.Flush();              swTxtFile.Close();              fsTxtFile.Close();               //重新设置鼠标格式              Cursor.Current = Cursors.Default;              MessageBox.Show("文件转换成功!", "提示",                      MessageBoxButtons.OK,  MessageBoxIcon.Information);          }            /// <summary>          /// 获取Excel文件中的数据          /// </summary>          /// <param name="path">Excel文件的路径</param>          /// <returns>DataTable:将Excel文件的数据加载到DataTable中</returns>          private DataTable GetExcelData(string path)          {              //连接字符串确定              string excelstr = "Provider = Microsoft.Jet.OLEDB.4.0;" + "Data Source= " + path + " ;"                           + " Extended Properties = Excel 8.0;";                            OleDbConnection excelConn = new OleDbConnection(excelstr);               //打开数据源连接              try             {                  if (excelConn.State == ConnectionState.Closed)                  {                      excelConn.Open();                  }              }              catch (Exception ex)              {                  MessageBox.Show("打开数据源连接失败！", "错误",                           MessageBoxButtons.OK, MessageBoxIcon.Error);                  Application.Exit();              }              finally             {                  if(excelConn.State == ConnectionState.Open)                  excelConn.Close();              }               //设置查询命令              OleDbDataAdapter myCommand = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", excelConn);              DataSet ds = new DataSet();                            //执行该查询EXCEL表的命令              try             {                  myCommand.Fill(ds, "excelTable");              }              catch (Exception ex)              {                  MessageBox.Show("该Excel文件的工作表的名字不是[Sheet1$]!", "错误",                                         MessageBoxButtons.OK, MessageBoxIcon.Error);                  Application.Exit();              }              finally             {                  if (excelConn.State == ConnectionState.Closed)                  {                      excelConn.Close();                  }              }               //判断DataTable中是否有数据              if (ds.Tables["excelTable"].Rows.Count > 0)              {                  return ds.Tables["excelTable"];              }              else             {                  MessageBox.Show("没有读到Excel表中的数据!", "错误",                                           MessageBoxButtons.OK, MessageBoxIcon.Error);                  return null;              }          }            /// <summary>          /// 将选择的excel表中的数据现在DataGridView中          /// </summary>          private void ShowDataGridView()          {              //设置显示控件的样式              this.dgvShow.DefaultCellStyle.BackColor = Color.Beige;              this.dgvShow.DefaultCellStyle.Font = new Font("Tahoma", 12);               DataGridViewCellStyle highlightCellStyle = new DataGridViewCellStyle();              highlightCellStyle.BackColor = Color.Red;               DataGridViewCellStyle currencyCellStyle = new DataGridViewCellStyle();              currencyCellStyle.Format = "C";              currencyCellStyle.ForeColor = Color.Green;               //设置显示控件的数据源              dgvShow.DataSource = dt;          }                 }  }

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