C#数据导出到Excel（或Word）源代码大全
在日常工作中，大家都习惯Office作为办公软件，因此，在开发软件的时，常常会有把数据导出到Excel等Office软件的需求。在此，收集一些常用的导出文件的源程序，希望给大家带来方便。（不断更新）
一、DataSet数据集内数据转化为Excel
// 作用：把DataSet数据集内数据转化为Excel、Word文件
// 描述：这些关于Excel、Word的导出方法，基本可以实现日常须要，其中有些方法可以把数据导出后
// 生成Xml格式，再导入数据库！有些屏蔽内容没有去掉，保留下来方便学习参考用之。
// 备注：请引用Office相应COM组件，导出Excel对象的一个方法要调用其中的一些方法和属性。
public void DataSetToExcel(DataSet ds,string FileName)
{
try
{
//Web页面定义
//System.Web.UI.Page mypage=new System.Web.UI.Page();
HttpResponse resp;
resp=HttpContext.Current.Response;
resp.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");
resp.AppendHeader("Content-disposition","attachment;filename="+FileName+".xls");
resp.ContentType="application/ms-excel";
//变量定义
string colHeaders=null;
string Is_item=null;
//显示格式定义////////////////
//文件流操作定义
//FileStream fs=new FileStream(FileName,FileMode.Create,FileAccess.Write);
//StreamWriter sw=new StreamWriter(fs,System.Text.Encoding.GetEncoding("GB2312"));
StringWriter sfw=new StringWriter();
//定义表对象与行对象，同时用DataSet对其值进行初始化
System.Data.DataTable dt=ds.Tables[0];
DataRow[] myRow=dt.Select();
int i=0;
int cl=dt.Columns.Count;
//取得数据表各列标题，各标题之间以\t分割，最后一个列标题后加回车符
for(i=0;i<cl;i++)
{
//if(i==(cl-1)) //最后一列，加\n
// colHeaders+=dt.Columns[i].Caption.ToString();
//else
colHeaders+=dt.Columns[i].Caption.ToString()+"\t";
}
sfw.WriteLine(colHeaders);
//sw.WriteLine(colHeaders);
//逐行处理数据
foreach(DataRow row in myRow)
{
//当前数据写入
for(i=0;i<cl;i++)
{
//if(i==(cl-1))
// Is_item+=row[i].ToString()+"\n";
//else
Is_item+=row[i].ToString()+"\t";
}
sfw.WriteLine(Is_item);
//sw.WriteLine(Is_item);
Is_item=null;
}
resp.Write(sfw);
//resp.Clear();
resp.End();
}
catch(Exception e)
{
throw e;
}
}
二、DataSet数据集内数据转化为Excel文件（2）
/// <summary>
/// ExportFiles 的摘要说明。
/// 作用：把DataSet数据集内数据转化
为Excel文件
/// 描述：导出Excel文件
/// 备注：请引用Office相应COM组件，导出Excel对象的一个方法要调用其中的一
些方法和属性。
/// </summary>
public class ExportFiles
{
private string filePath = "";
public ExportFiles(string excel_path)
{
//
// TODO: 在此处添加构造函数逻辑
//
filePath = excel_path;
}
/// <summary>
/// 将指定的Dataset导出到Excel文件
/// </summary>
/// <param name="dt"></param>
/// <returns></returns>
public bool ExportToExcel(System.Data.DataSet ds, string ReportName)
{
if (ds.Tables[0].Rows.Count == 0)
{
MessageBox.Show("数据集为空");
}
Microsoft.Office.Interop.Excel._Application xlapp = new ApplicationClass();
Workbook xlbook = xlapp.Workbooks.Add(true);
Worksheet xlsheet = (Worksheet)xlbook.Worksheets[1];
Range range = xlsheet.get_Range(xlapp.Cells[1, 1], xlapp.Cells[1, ds.Tables[0].Columns.Count]);
range.MergeCells = true;
xlapp.ActiveCell.FormulaR1C1 = ReportName;
xlapp.ActiveCell.Font.Size = 20;
xlapp.ActiveCell.Font.Bold = true;
xlapp.ActiveCell.HorizontalAlignment = Microsoft.Office.Interop.Excel.Constants.xlCenter;
int colIndex = 0;
int RowIndex = 2;
//开始写入每列的标题
foreach (DataColumn dc in ds.Tables[0].Columns)
{
colIndex++;
xlsheet.Cells[RowIndex, colIndex] = dc.Caption;
}
//开始写入内容
int RowCount = ds.Tables[0].Rows.Count;//行数
for (int i = 0; i < RowCount; i++)
{
RowIndex++;
int ColCount = ds.Tables[0].Columns.Count;//列数
for (colIndex = 1; colIndex <= ColCount; colIndex++)
{
xlsheet.Cells[RowIndex, colIndex] = ds.Tables[0].Rows[i][colIndex - 1];//dg[i, colIndex - 1];
xlsheet.Cells.ColumnWidth = ds.Tables[0].Rows[i][colIndex - 1].ToString().Length;
}
}
xlbook.Saved = true;
xlbook.SaveCopyAs(filePath);
xlapp.Quit();
GC.Collect();
return true;
}
public bool ExportToExcelOF(System.Data.DataSet ds, string ReportName)
{
if (ds.Tables[0].Rows.Count == 0)
{
MessageBox.Show("数据集为空");
}
string FileName = filePath;
//System.Data.DataTable dt = new System.Data.DataTable();
FileStream objFileStream;
StreamWriter objStreamWriter;
string strLine = "";
objFileStream = new FileStream(FileName, FileMode.OpenOrCreate, FileAccess.Write);
objStreamWriter = new StreamWriter(objFileStream, System.Text.Encoding.Unicode);
strLine = ReportName;
o
bjStreamWriter.WriteLine(strLine);
strLine = "";
for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
{
strLine = strLine + ds.Tables[0].Columns[i].ColumnName.ToString() + " " + Convert.ToChar(9);
}
objStreamWriter.WriteLine(strLine);
strLine = "";
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
strLine = strLine + (i + 1) + Convert.ToChar(9);
for (int j = 1; j < ds.Tables[0].Columns.Count; j++)
{
strLine = strLine + ds.Tables[0].Rows[i][j].ToString() + Convert.T
oChar(9);
}
objStreamWriter.WriteLine(strLine);
strLine = "";
}
objStreamWriter.Close();
objFileStream.Close();
//Microsoft.Office.Interop.Excel._Application xlapp = new ApplicationClass();
//Workbook xlbook = xlapp.Workbooks.Add(true);
//Worksheet xlsheet = (Worksheet)xlbook.Worksheets[1];
//Range range = xlsheet.get_Range(xlapp.Cells[1, 1], xlapp.Cells[1, ds.Tables[0].Columns.Count]);
//range.EntireColumn.AutoFit();
//xlapp.Quit();
return true;
}
}
三、生成XML然后转换成Excel方式
参考资源：https://www.doczj.com/doc/e912180541.html,/office/Excel_Export.asp?df=100&forumid=329437&fr=51 （源程序）
优点：
a. 服务端不用安装Excel程序。
b. 支持一定的Excel文件格式设置，比如字体大小、颜色、合并单元格等。
缺点：
a. 与Excel 2000不兼容：由于Excel 2000不支持XML，所以以这种方法生成的Excel文件可能在Excel2000中不兼容（毕竟目前还有不少用户的电脑装的是Excel 2000）。
b. 可能不支持Excel文件页边距的设置；不支持Excel文件横向、纵向的设置；不支持Excel模板；
c. 编程工作量比较大；
d. 生成的文件本质上是XML文件，需要“另存为xls”才能变成真正的Excel文件。
e. 性能是好是坏还不清楚，目前还没真正在项目中用过。希望有用过此方案的朋友能介绍一下这个方案的性能。
四、导出GridView到Excel
//导出GridView到Excel中的关键之处
//用法： ToExcel(GVStaff, TextBox1.Text);
public static void ToExcel(System.Web.UI.Control ctl,string FileName)
{
HttpContext.Current.Response.Charset ="UTF-8";
HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default;
HttpContext.Current.Response.ContentType ="application/ms-excel";
HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename="+""+FileName+".xls");
ctl.Page.EnableViewState =false;
System.IO.StringWriter tw = new System.IO.StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
ctl.RenderControl(hw);
HttpContext.Current.Response.Write(tw.ToString());
HttpContext.Current.Response.End();
}
必须有下面这句！否则不会通过！
public override void VerifyRenderingInServerForm(Control control)
{
// Confirms that an HtmlForm control is rendered for
}
五、DataTable导出到Excel
using System;
using Microsoft.Office.Interop.Excel;
using System.Windows.Forms;
namespace DongVI
{
/// <summary>
/// DataTable导出到Excel
/// 整理:dongVi
/// </summary>
public class DataTableToExcel
{
private DataTableToExcel()
{
}
/// <summary>
/// 导出Excel
/// </summary>
/// <param name="dt">要导出的DataTable</param>
public static void ExportToExcel(Syst
em.Data.DataTable dt )
{
if (dt == null) return;
Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
if (xlApp == null)
{
// lblMsg.Text = "无法创建Excel对象，可能您的电脑未安装Excel";
MessageBox.Show( "无法创建Excel对象，可能您的电脑未安装Excel" );
return;
}
System.Windows.Forms.SaveFileDialog saveDia = new SaveFileDialog();
saveDia.Filter = "Excel|*.xls";
saveDia.Title = "导出为Excel文件";
if(saveDia.ShowDialog()== System.Windows.Forms.DialogResult.OK
&& !string.Empty.Equals(saveDia.FileName))
{
Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;
Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];//取得sheet1
Microsoft.Office.Interop.Excel.Range range = null;
long totalCount = dt.Rows.Count;
long rowRead = 0;
float percent = 0;
string fileName = saveDia.FileName;
//写入标题
for (int i = 0; i < dt.Columns.Count; i++)
{
worksheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;
range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, i + 1];
//range.Interior.ColorIndex = 15;//背景颜色
range.Font.Bold = true;//粗体
range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;//居中
//加边框
range.BorderAround(Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous, Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin, Microsoft.Office.Interop.Excel.XlColorIndex.xlColorIndexAutomatic, null);
//range.ColumnWidth = 4.63;//设置列宽
//range.EntireColumn.AutoFit();//自动调整列宽
//r1.EntireRow.AutoFit();//自动调整行高
}
//写入内容
for (int r = 0; r < dt.DefaultView.Count; r++)
{
for (int i = 0; i < dt.Columns.Count; i++)
{
worksheet.Cells[r + 2, i + 1] = dt.DefaultView[r][i];
range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[r + 2, i + 1];
range.Font.Size = 9;//字体大
小
//加边框
range.BorderAround(Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous, Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin, Microsoft.Office.Interop.Excel.XlColorIndex.xlColorIndexAutomatic, null);
range.EntireColumn.AutoFit();//自动调整列宽
}
rowRead++;
percent = ((float)(100 * rowRead)) / totalCount;
System.Windows.Forms.Application.DoEvents();
}
range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideHorizontal].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;
if (dt.Columns.Count > 1)
{
range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideVertical].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;
}
try
{
workbook.Saved = true;
workbook.SaveCopyAs(fileName);
}
catch (Exception ex)
{
//lblMsg.Text = "导出文件时出错,文件可能正被打开！\n" + ex.Message;
MessageBox.Show( "导出文件时出错,文件可能正被打开！\n" + ex.Message );
return;
}
workbooks.Close();
if (xlApp != null)
{
xlApp.Workbooks.Close();
xlApp.Quit();
int generation = System.GC.GetGeneration(xlApp);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp);
xlApp = null;
System.GC.Collect(generation);
}
GC.Collect();//强行销毁
#region 强行杀死最近打开的Excel进程
System.Diagnostics.Process[] excelProc = System.Diagnostics.Process.GetProcessesByName("EXCEL");
System.DateTime startTime = new DateTime();
int m, killId = 0;
for (m = 0; m < excelProc.Length; m++)
{
if (startTime < excelProc[m].StartTime)
{
startTime = excelProc[m].StartTime;
killId = m;
}
}
if (excelProc[killId].HasExited == false)
{
excelProc[killId].Kill();
}
#endregion
MessageBox.Show( "导出成功!" );
}
}
}
}
六、DataTable导出到excel（2）
StringWriter stringWriter = new StringWriter();
HtmlTextWriter htmlWriter = new HtmlTextWriter( stringWriter );
DataGrid excel = new DataGrid();
System.Web.UI.WebControls.TableItemStyle AlternatingStyle = new TableItemStyle();
System.Web.UI.WebControls.TableItemStyle headerStyle = new TableItemStyle();
System.Web.UI.WebControls.TableItemStyle itemStyle = new TableItemStyle();
AlternatingStyle.BackColor = System.Drawing.Color.LightGray;
headerStyle.BackColor =System.Drawing.Color.LightGray;
headerStyle.Font.Bold = true;
headerStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
itemStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;;
excel.AlternatingItemStyle.MergeWith(AlternatingStyle);
excel.HeaderStyle.MergeWith(headerStyle);
excel.ItemStyle.MergeWith(itemStyle);
excel.GridLines = GridLines.Both;
excel.HeaderS
tyle.Font.Bold = true;
excel.DataSource = dt.DefaultView;//输出DataTable的内容
excel.DataBind();
excel.RenderControl(htmlWriter);
string filestr = "d:\\data\\"+filePath; //filePath是文件的路径
int pos = https://www.doczj.com/doc/e912180541.html,stIndexOf( "\\");
string file = filestr.Substring(0,pos);
if( !Directory.Exists( file ) )
{
Directory.CreateDirectory(file);
}
System.IO.StreamWriter sw = new StreamWriter(filestr);
sw.Write(stringWriter.ToString());
sw.Close();
七、通过SQL直接导出到Excel数据库
exec master..xp_cmdshell @# bcp "SELECT au_fname, au_lname FROM pubs..authors ORDER BY au_lname" queryout c:\test.xls -c -S"soa" -U"sa" -P"sa" @#
注意：参数的大小写，另外这种方法写入数据的时候没有标题。
关于通过SQL读取EXCEL的方法请参见：htt
p://https://www.doczj.com/doc/e912180541.html,/wonsoft/archive/2008/11/16/3312320.aspx
八、用OleDB 把 DataSet 数据导出到 Excel文件里
//dt为数据源（数据表）
//ExcelFileName 为要导出的Ｅｘｃｌｅ文件
//ModelFile为模板文件，该文件与数据源中的表一致。否则数据会导出失败。
//ModelFile文件里，需要有一张 与 dt.TableName 一致的表，而且字段也要一致。
//注明：如果不用ModelFile的话，可以用一个空白Excel文件，不过，要去掉下面创建表的注释，让OleDb自己创建一个空白表。
public static string TableToExcelFile(DataTable dt,string ExcelFileName,string ModelFile)
{
File.Copy(ModelFile,ExcelFileName); //复制一个空文件，提供写入数据用
if(File.Exists(ExcelFileName)==false)
{
return "系统创建临时文件失败，请与系统管理员联系！";
}
if(dt == null)
{
return "DataTable不能为空";
}
int rows = dt.Rows.Count;
int cols = dt.Columns.Count;
StringBuilder sb;
string connString;
if(rows == 0)
{
return "没有数据";
}
sb = new StringBuilder();
connString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+ExcelFileName+";Extended Properties=Excel 8.0;";
//生成创建表的脚本
//----sb.Append("DROP TABLE "+dt.TableName);
/*
sb.Append("CREATE TABLE ");
sb.Append(dt.TableName + " ( ");
for(int i=0;i<cols;i++)
{
if(i < cols - 1)
sb.Append(string.Format("{0} varchar,",dt.Columns[i].ColumnName));
else
sb.Append(string.Format("{0} varchar)",dt.Columns[i].ColumnName));
}
*/
//return sb.ToString();
OleDbConnection objConn = new OleDbConnection(connString);
OleDbCommand objCmd = new OleDbCommand();
objCmd.Connection = objConn;
//https://www.doczj.com/doc/e912180541.html,mandText=sb.ToString();
try
{
objConn.Open();
//objCmd.ExecuteNonQuery();
}
catch(Exception e)
{
return "在Excel中创建表失
败，错误信息：" + e.Message;
}
sb.Remove(0,sb.Length);
sb.Append("INSERT INTO ");
sb.Append(dt.TableName + " ( ");
for(int i=0;i<cols;i++)
{
if(i < cols - 1)
sb.Append(dt.Columns[i].ColumnName + ",");
else
sb.Append(dt.Columns[i].ColumnName + ") values (");
}
for(int i=0;i<cols;i++)
{
if(i < cols - 1)
sb.Append("@" + dt.Columns[i].ColumnName + ",");
else
sb.Append("@" + dt.Columns[i].ColumnName + ")");
}
//建立插入动作的Command
https://www.doczj.com/doc/e912180541.html,mandText = sb.ToString();
OleDbParameterCollection param = objCmd.Parameters;
for(int i=0;i<cols;i++)
{
param.Add(new OleDbParameter("@" + dt.Columns[i].ColumnName, OleDbType.VarChar));
}
//遍历DataTable将数据插入新建的Excel文件中
foreach (DataRow row in dt.
Rows)
{
for (int i=0; i<param.Count; i++)
{
param[i].Value = row[i];
}
objCmd.ExecuteNonQuery();
}
return "数据已成功导入Excel";
}
// Trackback: https://www.doczj.com/doc/e912180541.html,/TrackBack.aspx?PostId=754176
九、利用OLEDB，以excel为数据库，把dataset中的数据导入到excel文件中
public static void exportToExcelByDataset(string filePath, DataSet ds,XmlNode node)
{
string sqlstr;
if(fi.Exists)
{
fi.Delete();
//throw new Exception("文件删除失败");
}
else
{
fi.Create();
}
string mailto:sqlcon=@%22Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended ProPerties=Excel 8.0;";
OleDbConnection olecon = new OleDbConnection(sqlcon);
OleDbCommand olecmd = new OleDbCommand();
olecmd.Connection = olecon;
https://www.doczj.com/doc/e912180541.html,mandType = CommandType.Text;
try
{
olecon.Open();
XmlNode nodec=node.SelectSingleNode("./Method/ShowField");
int ii = 0;
sqlstr = "CREATE TABLE sheet1(";
foreach(XmlNode xnode in nodec.ChildNodes )
{
if(ii == nodec.ChildNodes.Count - 1)
{
if(xnode.Attributes["type"].Value.ToLower() == "int"||xnode.Attributes["type"].Value.ToLower() == "decimal")
{
sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " number)";
}
else
{
sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " text)";
}
// sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " text)";
}
else
{
if(xnode.Attributes["type"].Value.ToLower() == "int"||xnode.Attributes["type"].Value.ToLower() == "decimal")
{
sqlstr=sqlstr + xnode.Attri
butes["displayname"].Value + " number,";
}
else
{
sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " text,";
}
}
// sqlstr =sqlstr + xnode.Attributes["displayname"].Value + " text";
ii++;
}
https://www.doczj.com/doc/e912180541.html,mandText = sqlstr;
olecmd.ExecuteNonQuery();
for(int i=0;i<ds.Tables[0].Rows.Count;i++)
{
sqlstr = "INSERT INTO sheet1 VALUES(";
int jj=0;
foreach(XmlNode inode in nodec.ChildNodes )
{
if(jj == nodec.ChildNodes.Count-1)
{
if(inode.Attributes["type"].Value.ToLower() == "int"||inode.Attributes["type"].Value.ToLower() == "decimal")
{
sqlstr = sqlstr + isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString()) + ")" ;
}
else
{
sqlstr = sqlstr + "'" + isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString().Replace("'","''")) + "')" ;
}
}
else
{
if(inode.Attributes["type"].Value.ToLower() == "int"||inode.Attributes["type"].Value.ToLower() == "decimal"
)
{
sqlstr = sqlstr + isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString()) + "," ;
}
else
{
sqlstr = sqlstr + "'" + isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString().Replace("'","''")) + "'," ;
}
}
jj++;
}
https://www.doczj.com/doc/e912180541.html,mandText = sqlstr;
olecmd.ExecuteNonQuery();
}
MessageBox.Show(@"Excel文件：" + filePath + " 导出成功！");
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
olecmd.Dispose();
olecon.Close();
olecon.Dispose();
}
}
// 判断对象为空
private static string isnull(string obj)
{
if(obj.Length >0)
{
return obj;
}
else
{
return "null";
}
}
本文来自CSDN博客，转载请标明出处：https://www.doczj.com/doc/e912180541.html,/wonsoft/archive/2008/11/16/3311769.aspx