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 = _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.ToChar(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 = _Range(xlapp.Cells[1, 1], xlapp.Cells[1, ds.Tables[0].Columns.Count]);
//range.EntireColumn.AutoFit();
getsavefilename//xlapp.Quit();
return true;
}     
}
三、生成XML然后转换成Excel方式
参考资源:deproject/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、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(System.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
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
//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

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