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转:http://blog.csdn.net/wonsoft/article/details/3311769 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 //当前数据写入 for(i=0;i throw e; } }二、DataSet数据集内数据转化为Excel文件(2) /// /// 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。 /// 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; } /// /// 将指定的Dataset导出到Excel文件 /// /// /// 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 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; objStreamWriter.WriteLine(strLine); strLine = ""; for (int i = 0; i strLine = strLine + (i + 1) + Convert.ToChar(9); for (int j = 1; j 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 { /// /// DataTable导出到Excel /// 整理:dongVi /// public class DataTableToExcel { private DataTableToExcel() { } /// /// 导出Excel /// /// 要导出的DataTable 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 for (int i = 0; i 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 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.HeaderStyle.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 = filestr.LastIndexOf( "//"); 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:http://blog.csdn.net/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 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 if(i param[i].Value = row[i]; } objCmd.ExecuteNonQuery(); } return "数据已成功导入Excel"; } // Trackback: http://tb.blog.csdn.net/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; olecmd.CommandType = 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.Attributes["displayname"].Value + " number,"; } else { sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " text,"; } } // sqlstr =sqlstr + xnode.Attributes["displayname"].Value + " text"; ii++; } olecmd.CommandText = sqlstr; olecmd.ExecuteNonQuery(); for(int i=0;i 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++; } olecmd.CommandText = 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"; } }鸣谢:感谢各位作者的无私奉献!世界有你们真精彩。 |
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