数据导出到Excel（或Word）源代码大全

发布时间：2021-07-06 05:55:33 所属栏目：大数据来源： https://blog.csdn.net/kasama1

数据导出到Excel（或Word）源代码大全标签：?exceldatasetnulloffice数据库generation 2008-11-16 15:24? 13988人阅读? 评论(15)? 收藏? 举报

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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
????????? ?????????{
??????????//if(i==(cl-1))
??????????//???Is_item+=row[i].ToString()+"/n";
??????????Is_item+=row[i].ToString()+"/t";
?????????}
?????????sfw.WriteLine(Is_item);
//sw.WriteLine(Is_item);
?????????Is_item= ??????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>

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

///?</summary>

///?<param?name="dt"></param>

///?<returns></returns>

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?=? ????????xlbook.SaveCopyAs(filePath);

????????xlapp.Quit();

????????GC.Collect();

return? ????}

bool?ExportToExcelOF(System.Data.DataSet?ds,153); font-weight:bold; background-color:inherit">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?=?"";

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?=?"";

int?i?=?0;?i?<?ds.Tables[0].Rows.Count;?i++)

????????????strLine?=?strLine?+?(i?+?1)?+?Convert.tochar(9);

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?=?xlsheet.get_Range(xlapp.Cells[1,?ds.Tables[0].Columns.Count]);

//range.EntireColumn.AutoFit();

//xlapp.Quit();

????}?????

}

三、生成XML然后转换成Excel方式

参考资源：http://www.codeproject.com/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);

static?void?ToExcel(System.Web.UI.Control?ctl,153); font-weight:bold; background-color:inherit">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！

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

?class?DataTableToExcel

??private?DataTableToExcel()

??{

??}

?? ??///?导出Excel

///?<param?name="dt">要导出的DataTable</param>

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?=?long?totalCount?=?dt.Rows.Count;

long?rowRead?=?0;

float?percent?=?0;

string?fileName?=?saveDia.FileName;

//写入标题

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,153); font-weight:bold; background-color:inherit">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

int?r?=?0;?r?<?dt.DefaultView.Count;?r++)

????? ?????{

??????worksheet.Cells[r?+?2,?i?+?1]?=?dt.DefaultView[r][i];

??????range?=?(Microsoft.Office.Interop.Excel.Range)worksheet.Cells[r?+?2,108); list-style:decimal-leading-zero outside; color:inherit; line-height:18px; margin:0px!important; padding:0px 3px 0px 10px!important"> ??????range.Font.Size?=?9;//字体大小

??????range.BorderAround(Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous,248)"> ??????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?=? ?????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?);

????? ????workbooks.Close();

if?(xlApp?!=? ?????xlApp.Workbooks.Close();

?????xlApp.Quit();

int?generation?=?System.GC.GetGeneration(xlApp);

?????System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp);

?????xlApp?=? ?????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?=? 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?=? AlternatingStyle.BackColor?=?System.Drawing.Color.LightGray;

headerStyle.BackColor?=System.Drawing.Color.LightGray;

headerStyle.Font.Bold?=? 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?=? 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。

string?TableToExcelFile(DataTable?dt,153); font-weight:bold; background-color:inherit">string?ExcelFileName,153); font-weight:bold; background-color:inherit">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?==?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)",0); background-color:inherit">????}????

????*/

//return?sb.ToString();

????OleDbConnection?objConn?=?new?OleDbConnection(connString);

????OleDbCommand?objCmd?=?new?OleDbCommand();

????objCmd.Connection?=?objConn;

//objCmd.CommandText=sb.ToString();

????????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?(");

????????????sb.Append("@"?+?dt.Columns[i].ColumnName?+?",108); list-style:decimal-leading-zero outside; color:inherit; line-height:18px; margin:0px!important; padding:0px 3px 0px 10px!important"> ????????????sb.Append("@"?+?dt.Columns[i].ColumnName?+?")");

//建立插入动作的Command

????objCmd.CommandText?=?sb.ToString();

????OleDbParameterCollection?param?=?objCmd.Parameters;

????????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)

????{???

int?i=0;?i<param.Count;?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

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;

????????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)";???????

???????????????}

???????????????????sqlstr=sqlstr?+?xnode.Attributes["displayname"].Value?+?"?text)";

???????????????//?sqlstr=sqlstr?+?xnode.Attributes["displayname"].Value?+?"?text)";

???????????}

????????????????????sqlstr=sqlstr?+?xnode.Attributes["displayname"].Value?+?"?number,";???????

????????????????????sqlstr=sqlstr?+?xnode.Attributes["displayname"].Value?+?"?text,";

???????????}

???????????//??sqlstr?=sqlstr?+?xnode.Attributes["displayname"].Value?+?"?text";???????

???????????ii++;

???????}

???????olecmd.CommandText?=?sqlstr;

???????olecmd.ExecuteNonQuery();

???????int?i=0;i<ds.Tables[0].Rows.Count;i++)

???????{

???????????sqlstr?=?"INSERT?INTO?sheet1?VALUES(";

???????????int?jj=0;

foreach(XmlNode?inode? ????????????????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())?+?")"?;??

????????????????????}

?????????????????????????sqlstr?=?sqlstr?+?"'"?+?isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString().Replace("'","''"))?+?"')"?;

????????????????}

???????????????? ????????????????{

????????????????????if(inode.Attributes["type"].Value.ToLower()?==?"int"||inode.Attributes["type"].Value.ToLower()?==?"decimal")

????????????????????{

?????????????????????????sqlstr?=?sqlstr?+?isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString())?+?","?;

????????????????????}

?????????????????????????sqlstr?=?sqlstr?+?"'"?+?isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString().Replace("'","''"))?+?"',248)"> ????????????????}

????????????????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

string?isnull(string?obj)

if(obj.Length?>0)

return?obj;

return?"null";

????}?

}

鸣谢：感谢各位作者的无私奉献！世界有你们真精彩。

（编辑：北几岛）

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