using System;
using System.Diagnostics;
//using Excel;
namespace DotNet.Utilities
{
/// <summary>
/// 操作EXCEL导出数据报表的类
/// </summary>
public class DataToExcel
{
public DataToExcel()
{
}
#region 操作EXCEL的一个类(需要Excel.dll支持)
private int titleColorindex = 15;
/// <summary>
/// 标题背景色
/// </summary>
public int TitleColorIndex
{
set { titleColorindex = value; }
get { return titleColorindex; }
}
private DateTime beforeTime; //Excel启动之前时间
private DateTime afterTime; //Excel启动之后时间
#region 创建一个Excel示例
/// <summary>
/// 创建一个Excel示例
/// </summary>
public void CreateExcel()
{
//Excel.Application excel = new Excel.Application();
//excel.Application.Workbooks.Add(true);
//excel.Cells[1, 1] = "第1行第1列";
//excel.Cells[1, 2] = "第1行第2列";
//excel.Cells[2, 1] = "第2行第1列";
//excel.Cells[2, 2] = "第2行第2列";
//excel.Cells[3, 1] = "第3行第1列";
//excel.Cells[3, 2] = "第3行第2列";
////保存
//excel.ActiveWorkbook.SaveAs("./tt.xls", XlFileFormat.xlExcel9795, null, null, false, false, Excel.XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);
////打开显示
//excel.Visible = true;
//// excel.Quit();
//// excel=null;
//// GC.Collect();//垃圾回收
}
#endregion
#region 将DataTable的数据导出显示为报表
/// <summary>
/// 将DataTable的数据导出显示为报表
/// </summary>
/// <param name="dt">要导出的数据</param>
/// <param name="strTitle">导出报表的标题</param>
/// <param name="FilePath">保存文件的路径</param>
/// <returns></returns>
//public string OutputExcel(System.Data.DataTable dt, string strTitle, string FilePath)
//{
// beforeTime = DateTime.Now;
// Excel.Application excel;
// Excel._Workbook xBk;
// Excel._Worksheet xSt;
// int rowIndex = 4;
// int colIndex = 1;
// excel = new Excel.ApplicationClass();
// xBk = excel.Workbooks.Add(true);
// xSt = (Excel._Worksheet)xBk.ActiveSheet;
// //取得列标题
// foreach (DataColumn col in dt.Columns)
// {
// colIndex++;
// excel.Cells[4, colIndex] = col.ColumnName;
// //设置标题格式为居中对齐
// xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Font.Bold = true;
// xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;
// xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Select();
// xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Interior.ColorIndex = titleColorindex;//19;//设置为浅黄色，共计有56种
// }
// //取得表格中的数据
// foreach (DataRow row in dt.Rows)
// {
// rowIndex++;
// colIndex = 1;
// foreach (DataColumn col in dt.Columns)
// {
// colIndex++;
// if (col.DataType == System.Type.GetType("System.DateTime"))
// {
// excel.Cells[rowIndex, colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd");
// xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;//设置日期型的字段格式为居中对齐
// }
// else
// if (col.DataType == System.Type.GetType("System.String"))
// {
// excel.Cells[rowIndex, colIndex] = "'" + row[col.ColumnName].ToString();
// xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;//设置字符型的字段格式为居中对齐
// }
// else
// {
// excel.Cells[rowIndex, colIndex] = row[col.ColumnName].ToString();
// }
// }
// }
// //加载一个合计行
// int rowSum = rowIndex + 1;
// int colSum = 2;
// excel.Cells[rowSum, 2] = "合计";
// xSt.get_Range(excel.Cells[rowSum, 2], excel.Cells[rowSum, 2]).HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
// //设置选中的部分的颜色
// xSt.get_Range(excel.Cells[rowSum, colSum], excel.Cells[rowSum, colIndex]).Select();
// //xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Interior.ColorIndex =Assistant.GetConfigInt("ColorIndex");// 1;//设置为浅黄色，共计有56种
// //取得整个报表的标题
// excel.Cells[2, 2] = strTitle;
// //设置整个报表的标题格式
// xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, 2]).Font.Bold = true;
// xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, 2]).Font.Size = 22;
// //设置报表表格为最适应宽度
// xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Select();
// xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Columns.AutoFit();
// //设置整个报表的标题为跨列居中
// xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, colIndex]).Select();
// xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, colIndex]).HorizontalAlignment = Excel.XlHAlign.xlHAlignCenterAcrossSelection;
// //绘制边框
// xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Borders.LineStyle = 1;
// xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, 2]).Borders[Excel.XlBordersIndex.xlEdgeLeft].Weight = Excel.XlBorderWeight.xlThick;//设置左边线加粗
// xSt.get_Range(excel.Cells[4, 2], excel.Cells[4, colIndex]).Borders[Excel.XlBordersIndex.xlEdgeTop].Weight = Excel.XlBorderWeight.xlThick;//设置上边线加粗
// xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[rowSum, colIndex]).Borders[Excel.XlBordersIndex.xlEdgeRight].Weight = Excel.XlBorderWeight.xlThick;//设置右边线加粗
// xSt.get_Range(excel.Cells[rowSum, 2], excel.Cells[rowSum, colIndex]).Borders[Excel.XlBordersIndex.xlEdgeBottom].Weight = Excel.XlBorderWeight.xlThick;//设置下边线加粗
// afterTime = DateTime.Now;
// //显示效果
// //excel.Visible=true;
// //excel.Sheets[0] = "sss";
// ClearFile(FilePath);
// string filename = DateTime.Now.ToString("yyyyMMddHHmmssff") + ".xls";
// excel.ActiveWorkbook.SaveAs(FilePath + filename, Excel.XlFileFormat.xlExcel9795, null, null, false, false, Excel.XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);
// //wkbNew.SaveAs strBookName;
// //excel.Save(strExcelFileName);
// #region 结束Excel进程
// //需要对Excel的DCOM对象进行配置:dcomcnfg
// //excel.Quit();
// //excel=null;
// xBk.Close(null, null, null);
// excel.Workbooks.Close();
// excel.Quit();
// //注意：这里用到的所有Excel对象都要执行这个操作，否则结束不了Excel进程
// // if(rng != null)
// // {
// // System.Runtime.InteropServices.Marshal.ReleaseComObject(rng);
// // rng = null;
// // }
// // if(tb != null)
// // {
// // System.Runtime.InteropServices.Marshal.ReleaseComObject(tb);
// // tb = null;
// // }
// if (xSt != null)
// {
// System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt);
// xSt = null;
// }
// if (xBk != null)
// {
// System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk);
// xBk = null;
// }
// if (excel != null)
// {
// System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
// excel = null;
// }
// GC.Collect();//垃圾回收
// #endregion
// return filename;
//}
#endregion
#region Kill Excel进程
/// <summary>
/// 结束Excel进程
/// </summary>
public void KillExcelProcess()
{
Process[] myProcesses;
DateTime startTime;
myProcesses = Process.GetProcessesByName("Excel");
//得不到Excel进程ID，暂时只能判断进程启动时间
foreach (Process myProcess in myProcesses)
{
startTime = myProcess.StartTime;
if (startTime > beforeTime && startTime < afterTime)
{
myProcess.Kill();
}
}
}
#endregion
#endregion
#region 将DataTable的数据导出显示为报表(不使用Excel对象，使用COM.Excel)
#region 使用示例
/*使用示例：
* DataSet ds=(DataSet)Session["AdBrowseHitDayList"];
string ExcelFolder=Assistant.GetConfigString("ExcelFolder");
string FilePath=Server.MapPath(".")+"\\"+ExcelFolder+"\\";
//生成列的中文对应表
Hashtable nameList = new Hashtable();
nameList.Add("ADID", "广告编码");
nameList.Add("ADName", "广告名称");
nameList.Add("year", "年");
nameList.Add("month", "月");
nameList.Add("browsum", "显示数");
nameList.Add("hitsum", "点击数");
nameList.Add("BrowsinglIP", "独立IP显示");
nameList.Add("HitsinglIP", "独立IP点击");
//利用excel对象
DataToExcel dte=new DataToExcel();
string filename="";
try
{
if(ds.Tables[0].Rows.Count>0)
{
filename=dte.DataExcel(ds.Tables[0],"标题",FilePath,nameList);
}
}
catch
{
//dte.KillExcelProcess();
}
if(filename!="")
{
Response.Redirect(ExcelFolder+"\\"+filename,true);
}
*
* */
#endregion
/// <summary>
/// 将DataTable的数据导出显示为报表(不使用Excel对象)
/// </summary>
/// <param name="dt">数据DataTable</param>
/// <param name="strTitle">标题</param>
/// <param name="FilePath">生成文件的路径</param>
/// <param name="nameList"></param>
/// <returns></returns>
//public string DataExcel(System.Data.DataTable dt, string strTitle, string FilePath, Hashtable nameList)
//{
// COM.Excel.cExcelFile excel = new COM.Excel.cExcelFile();
// ClearFile(FilePath);
// string filename = DateTime.Now.ToString("yyyyMMddHHmmssff") + ".xls";
// excel.CreateFile(FilePath + filename);
// excel.PrintGridLines = false;
// COM.Excel.cExcelFile.MarginTypes mt1 = COM.Excel.cExcelFile.MarginTypes.xlsTopMargin;
// COM.Excel.cExcelFile.MarginTypes mt2 = COM.Excel.cExcelFile.MarginTypes.xlsLeftMargin;
// COM.Excel.cExcelFile.MarginTypes mt3 = COM.Excel.cExcelFile.MarginTypes.xlsRightMargin;
// COM.Excel.cExcelFile.MarginTypes mt4 = COM.Excel.cExcelFile.MarginTypes.xlsBottomMargin;
// double height = 1.5;
// excel.SetMargin(ref mt1, ref height);
// excel.SetMargin(ref mt2, ref height);
// excel.SetMargin(ref mt3, ref height);
// excel.SetMargin(ref mt4, ref height);
// COM.Excel.cExcelFile.FontFormatting ff = COM.Excel.cExcelFile.FontFormatting.xlsNoFormat;
// string font = "宋体";
// short fontsize = 9;
// excel.SetFont(ref font, ref fontsize, ref ff);
// byte b1 = 1,
// b2 = 12;
// short s3 = 12;
// excel.SetColumnWidth(ref b1, ref b2, ref s3);
// string header = "页眉";
// string footer = "页脚";
// excel.SetHeader(ref header);
// excel.SetFooter(ref footer);
// COM.Excel.cExcelFile.ValueTypes vt = COM.Excel.cExcelFile.ValueTypes.xlsText;
// COM.Excel.cExcelFile.CellFont cf = COM.Excel.cExcelFile.CellFont.xlsFont0;
// COM.Excel.cExcelFile.CellAlignment ca = COM.Excel.cExcelFile.CellAlignment.xlsCentreAlign;
// COM.Excel.cExcelFile.CellHiddenLocked chl = COM.Excel.cExcelFile.CellHiddenLocked.xlsNormal;
// // 报表标题
// int cellformat = 1;
// // int rowindex = 1,colindex = 3;
// // object title = (object)strTitle;
// // excel.WriteValue(ref vt, ref cf, ref ca, ref chl,ref rowindex,ref colindex,ref title,ref cellformat);
// int rowIndex = 1;//起始行
// int colIndex = 0;
// //取得列标题
// foreach (DataColumn colhead in dt.Columns)
// {
// colIndex++;
// string name = colhead.ColumnName.Trim();
// object namestr = (object)name;
// IDictionaryEnumerator Enum = nameList.GetEnumerator();
// while (Enum.MoveNext())
// {
// if (Enum.Key.ToString().Trim() == name)
// {
// namestr = Enum.Value;
// }
// }
// excel.WriteValue(ref vt, ref cf, ref ca, ref chl, ref rowIndex, ref colIndex, ref namestr, ref cellformat);
// }
// //取得表格中的数据
// foreach (DataRow row in dt.Rows)
// {
// rowIndex++;
// colIndex = 0;
// foreach (DataColumn col in dt.Columns)
// {
// colIndex++;
// if (col.DataType == System.Type.GetType("System.DateTime"))
// {
// object str = (object)(Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd"); ;
// excel.WriteValue(ref vt, ref cf, ref ca, ref chl, ref rowIndex, ref colIndex, ref str, ref cellformat);
// }
// else
// {
// object str = (object)row[col.ColumnName].ToString();
// excel.WriteValue(ref vt, ref cf, ref ca, ref chl, ref rowIndex, ref colIndex, ref str, ref cellformat);
// }
// }
// }
// int ret = excel.CloseFile();
// // if(ret!=0)
// // {
// // //MessageBox.Show(this,"Error!");
// // }
// // else
// // {
// // //MessageBox.Show(this,"请打开文件c:\\test.xls!");
// // }
// return filename;
//}
#endregion
#region 清理过时的Excel文件
private void ClearFile(string FilePath)
{
String[] Files = System.IO.Directory.GetFiles(FilePath);
if (Files.Length > 10)
{
for (int i = 0; i < 10; i++)
{
try
{
System.IO.File.Delete(Files[i]);
}
catch
{
}
}
}
}
#endregion
}
}
using System;
using System.IO;
using System.Data;
using System.Collections;
using System.Data.OleDb;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace DotNet.Utilities
{
/// <summary>
/// Excel操作类
/// </summary>
/// Microsoft Excel 11.0 Object Library
public class ExcelHelper
{
#region 数据导出至Excel文件
/// </summary>
/// 导出Excel文件，自动返回可下载的文件流
/// </summary>
public static void DataTable1Excel(System.Data.DataTable dtData)
{
GridView gvExport = null;
HttpContext curContext = HttpContext.Current;
StringWriter strWriter = null;
HtmlTextWriter htmlWriter = null;
if (dtData != null)
{
curContext.Response.ContentType = "application/vnd.ms-excel";
curContext.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
curContext.Response.Charset = "utf-8";
strWriter = new StringWriter();
htmlWriter = new HtmlTextWriter(strWriter);
gvExport = new GridView();
gvExport.DataSource = dtData.DefaultView;
gvExport.AllowPaging = false;
gvExport.DataBind();
gvExport.RenderControl(htmlWriter);
curContext.Response.Write("<meta http-equiv=\"Content-Type\" content=\"text/html;charset=gb2312\"/>" + strWriter.ToString());
curContext.Response.End();
}
}
/// <summary>
/// 导出Excel文件，转换为可读模式
/// </summary>
public static void DataTable2Excel(System.Data.DataTable dtData)
{
DataGrid dgExport = null;
HttpContext curContext = HttpContext.Current;
StringWriter strWriter = null;
HtmlTextWriter htmlWriter = null;
if (dtData != null)
{
curContext.Response.ContentType = "application/vnd.ms-excel";
curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;
curContext.Response.Charset = "";
strWriter = new StringWriter();
htmlWriter = new HtmlTextWriter(strWriter);
dgExport = new DataGrid();
dgExport.DataSource = dtData.DefaultView;
dgExport.AllowPaging = false;
dgExport.DataBind();
dgExport.RenderControl(htmlWriter);
curContext.Response.Write(strWriter.ToString());
curContext.Response.End();
}
}
/// <summary>
/// 导出Excel文件，并自定义文件名
/// </summary>
public static void DataTable3Excel(System.Data.DataTable dtData, String FileName)
{
GridView dgExport = null;
HttpContext curContext = HttpContext.Current;
StringWriter strWriter = null;
HtmlTextWriter htmlWriter = null;
if (dtData != null)
{
HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8);
curContext.Response.AddHeader("content-disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8) + ".xls");
curContext.Response.ContentType = "application nd.ms-excel";
curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;
curContext.Response.Charset = "GB2312";
strWriter = new StringWriter();
htmlWriter = new HtmlTextWriter(strWriter);
dgExport = new GridView();
dgExport.DataSource = dtData.DefaultView;
dgExport.AllowPaging = false;
dgExport.DataBind();
dgExport.RenderControl(htmlWriter);
curContext.Response.Write(strWriter.ToString());
curContext.Response.End();
}
}
/// <summary>
/// 将数据导出至Excel文件
/// </summary>
/// <param name="Table">DataTable对象</param>
/// <param name="ExcelFilePath">Excel文件路径</param>
public static bool OutputToExcel(DataTable Table, string ExcelFilePath)
{
if (File.Exists(ExcelFilePath))
{
throw new Exception("该文件已经存在！");
}
if ((Table.TableName.Trim().Length == 0) || (Table.TableName.ToLower() == "table"))
{
Table.TableName = "Sheet1";
}
//数据表的列数
int ColCount = Table.Columns.Count;
//用于记数，实例化参数时的序号
int i = 0;
//创建参数
OleDbParameter[] para = new OleDbParameter[ColCount];
//创建表结构的SQL语句
string TableStructStr = @"Create Table " + Table.TableName + "(";
//连接字符串
string connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=Excel 8.0;";
OleDbConnection objConn = new OleDbConnection(connString);
//创建表结构
OleDbCommand objCmd = new OleDbCommand();
//数据类型集合
ArrayList DataTypeList = new ArrayList();
DataTypeList.Add("System.Decimal");
DataTypeList.Add("System.Double");
DataTypeList.Add("System.Int16");
DataTypeList.Add("System.Int32");
DataTypeList.Add("System.Int64");
DataTypeList.Add("System.Single");
//遍历数据表的所有列，用于创建表结构
foreach (DataColumn col in Table.Columns)
{
//如果列属于数字列，则设置该列的数据类型为double
if (DataTypeList.IndexOf(col.DataType.ToString()) >= 0)
{
para[i] = new OleDbParameter("@" + col.ColumnName, OleDbType.Double);
objCmd.Parameters.Add(para[i]);
//如果是最后一列
if (i + 1 == ColCount)
{
TableStructStr += col.ColumnName + " double)";
}
else
{
TableStructStr += col.ColumnName + " double,";
}
}
else
{
para[i] = new OleDbParameter("@" + col.ColumnName, OleDbType.VarChar);
objCmd.Parameters.Add(para[i]);
//如果是最后一列
if (i + 1 == ColCount)
{
TableStructStr += col.ColumnName + " varchar)";
}
else
{
TableStructStr += col.ColumnName + " varchar,";
}
}
i++;
}
//创建Excel文件及文件结构
try
{
objCmd.Connection = objConn;
objCmd.CommandText = TableStructStr;
if (objConn.State == ConnectionState.Closed)
{
objConn.Open();
}
objCmd.ExecuteNonQuery();
}
catch (Exception exp)
{
throw exp;
}
//插入记录的SQL语句
string InsertSql_1 = "Insert into " + Table.TableName + " (";
string InsertSql_2 = " Values (";
string InsertSql = "";
//遍历所有列，用于插入记录，在此创建插入记录的SQL语句
for (int colID = 0; colID < ColCount; colID++)
{
if (colID + 1 == ColCount) //最后一列
{
InsertSql_1 += Table.Columns[colID].ColumnName + ")";
InsertSql_2 += "@" + Table.Columns[colID].ColumnName + ")";
}
else
{
InsertSql_1 += Table.Columns[colID].ColumnName + ",";
InsertSql_2 += "@" + Table.Columns[colID].ColumnName + ",";
}
}
InsertSql = InsertSql_1 + InsertSql_2;
//遍历数据表的所有数据行
for (int rowID = 0; rowID < Table.Rows.Count; rowID++)
{
for (int colID = 0; colID < ColCount; colID++)
{
if (para[colID].DbType == DbType.Double && Table.Rows[rowID][colID].ToString().Trim() == "")
{
para[colID].Value = 0;
}
else
{
para[colID].Value = Table.Rows[rowID][colID].ToString().Trim();
}
}
try
{
objCmd.CommandText = InsertSql;
objCmd.ExecuteNonQuery();
}
catch (Exception exp)
{
string str = exp.Message;
}
}
try
{
if (objConn.State == ConnectionState.Open)
{
objConn.Close();
}
}
catch (Exception exp)
{
throw exp;
}
return true;
}
/// <summary>
/// 将数据导出至Excel文件
/// </summary>
/// <param name="Table">DataTable对象</param>
/// <param name="Columns">要导出的数据列集合</param>
/// <param name="ExcelFilePath">Excel文件路径</param>
public static bool OutputToExcel(DataTable Table, ArrayList Columns, string ExcelFilePath)
{
if (File.Exists(ExcelFilePath))
{
throw new Exception("该文件已经存在！");
}
//如果数据列数大于表的列数，取数据表的所有列
if (Columns.Count > Table.Columns.Count)
{
for (int s = Table.Columns.Count + 1; s <= Columns.Count; s++)
{
Columns.RemoveAt(s); //移除数据表列数后的所有列
}
}
//遍历所有的数据列，如果有数据列的数据类型不是 DataColumn，则将它移除
DataColumn column = new DataColumn();
for (int j = 0; j < Columns.Count; j++)
{
try
{
column = (DataColumn)Columns[j];
}
catch (Exception)
{
Columns.RemoveAt(j);
}
}
if ((Table.TableName.Trim().Length == 0) || (Table.TableName.ToLower() == "table"))
{
Table.TableName = "Sheet1";
}
//数据表的列数
int ColCount = Columns.Count;
//创建参数
OleDbParameter[] para = new OleDbParameter[ColCount];
//创建表结构的SQL语句
string TableStructStr = @"Create Table " + Table.TableName + "(";
//连接字符串
string connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=Excel 8.0;";
OleDbConnection objConn = new OleDbConnection(connString);
//创建表结构
OleDbCommand objCmd = new OleDbCommand();
//数据类型集合
ArrayList DataTypeList = new ArrayList();
DataTypeList.Add("System.Decimal");
DataTypeList.Add("System.Double");
DataTypeList.Add("System.Int16");
DataTypeList.Add("System.Int32");
DataTypeList.Add("System.Int64");
DataTypeList.Add("System.Single");
DataColumn col = new DataColumn();
//遍历数据表的所有列，用于创建表结构
for (int k = 0; k < ColCount; k++)
{
col = (DataColumn)Columns[k];
//列的数据类型是数字型
if (DataTypeList.IndexOf(col.DataType.ToString().Trim()) >= 0)
{
para[k] = new OleDbParameter("@" + col.Caption.Trim(), OleDbType.Double);
objCmd.Parameters.Add(para[k]);
//如果是最后一列
if (k + 1 == ColCount)
{
TableStructStr += col.Caption.Trim() + " Double)";
}
else
{
TableStructStr += col.Caption.Trim() + " Double,";
}
}
else
{
para[k] = new OleDbParameter("@" + col.Caption.Trim(), OleDbType.VarChar);
objCmd.Parameters.Add(para[k]);
//如果是最后一列
if (k + 1 == ColCount)
{
TableStructStr += col.Caption.Trim() + " VarChar)";
}
else
{
TableStructStr += col.Caption.Trim() + " VarChar,";
}
}
}
//创建Excel文件及文件结构
try
{
objCmd.Connection = objConn;
objCmd.CommandText = TableStructStr;
if (objConn.State == ConnectionState.Closed)
{
objConn.Open();
}
objCmd.ExecuteNonQuery();
}
catch (Exception exp)
{
throw exp;
}
//插入记录的SQL语句
string InsertSql_1 = "Insert into " + Table.TableName + " (";
string InsertSql_2 = " Values (";
string InsertSql = "";
//遍历所有列，用于插入记录，在此创建插入记录的SQL语句
for (int colID = 0; colID < ColCount; colID++)
{
if (colID + 1 == ColCount) //最后一列
{
InsertSql_1 += Columns[colID].ToString().Trim() + ")";
InsertSql_2 += "@" + Columns[colID].ToString().Trim() + ")";
}
else
{
InsertSql_1 += Columns[colID].ToString().Trim() + ",";
InsertSql_2 += "@" + Columns[colID].ToString().Trim() + ",";
}
}
InsertSql = InsertSql_1 + InsertSql_2;
//遍历数据表的所有数据行
DataColumn DataCol = new DataColumn();
for (int rowID = 0; rowID < Table.Rows.Count; rowID++)
{
for (int colID = 0; colID < ColCount; colID++)
{
//因为列不连续，所以在取得单元格时不能用行列编号，列需得用列的名称
DataCol = (DataColumn)Columns[colID];
if (para[colID].DbType == DbType.Double && Table.Rows[rowID][DataCol.Caption].ToString().Trim() == "")
{
para[colID].Value = 0;
}
else
{
para[colID].Value = Table.Rows[rowID][DataCol.Caption].ToString().Trim();
}
}
try
{
objCmd.CommandText = InsertSql;
objCmd.ExecuteNonQuery();
}
catch (Exception exp)
{
string str = exp.Message;
}
}
try
{
if (objConn.State == ConnectionState.Open)
{
objConn.Close();
}
}
catch (Exception exp)
{
throw exp;
}
return true;
}
#endregion
/// <summary>
/// 获取Excel文件数据表列表
/// </summary>
public static ArrayList GetExcelTables(string ExcelFileName)
{
DataTable dt = new DataTable();
ArrayList TablesList = new ArrayList();
if (File.Exists(ExcelFileName))
{
using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;Data Source=" + ExcelFileName))
{
try
{
conn.Open();
dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
}
catch (Exception exp)
{
throw exp;
}
//获取数据表个数
int tablecount = dt.Rows.Count;
for (int i = 0; i < tablecount; i++)
{
string tablename = dt.Rows[i][2].ToString().Trim().TrimEnd('$');
if (TablesList.IndexOf(tablename) < 0)
{
TablesList.Add(tablename);
}
}
}
}
return TablesList;
}
/// <summary>
/// 将Excel文件导出至DataTable(第一行作为表头)
/// </summary>
/// <param name="ExcelFilePath">Excel文件路径</param>
/// <param name="TableName">数据表名，如果数据表名错误，默认为第一个数据表名</param>
public static DataTable InputFromExcel(string ExcelFilePath, string TableName)
{
if (!File.Exists(ExcelFilePath))
{
throw new Exception("Excel文件不存在！");
}
//如果数据表名不存在，则数据表名为Excel文件的第一个数据表
ArrayList TableList = new ArrayList();
TableList = GetExcelTables(ExcelFilePath);
if (TableName.IndexOf(TableName) < 0)
{
TableName = TableList[0].ToString().Trim();
}
DataTable table = new DataTable();
OleDbConnection dbcon = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=Excel 8.0");
OleDbCommand cmd = new OleDbCommand("select * from [" + TableName + "$]", dbcon);
OleDbDataAdapter adapter = new OleDbDataAdapter(cmd);
try
{
if (dbcon.State == ConnectionState.Closed)
{
dbcon.Open();
}
adapter.Fill(table);
}
catch (Exception exp)
{
throw exp;
}
finally
{
if (dbcon.State == ConnectionState.Open)
{
dbcon.Close();
}
}
return table;
}
/// <summary>
/// 获取Excel文件指定数据表的数据列表
/// </summary>
/// <param name="ExcelFileName">Excel文件名</param>
/// <param name="TableName">数据表名</param>
public static ArrayList GetExcelTableColumns(string ExcelFileName, string TableName)
{
DataTable dt = new DataTable();
ArrayList ColsList = new ArrayList();
if (File.Exists(ExcelFileName))
{
using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;Data Source=" + ExcelFileName))
{
conn.Open();
dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Columns, new object[] { null, null, TableName, null });
//获取列个数
int colcount = dt.Rows.Count;
for (int i = 0; i < colcount; i++)
{
string colname = dt.Rows[i]["Column_Name"].ToString().Trim();
ColsList.Add(colname);
}
}
}
return ColsList;
}
}
}
using System;
using System.Web;
using System.Web.UI;
using System.IO;
using System.Web.UI.WebControls;
namespace DotNet.Utilities
{
public class ExportExcel
{
protected void ExportData(string strContent, string FileName)
{
FileName = FileName + DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString();
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Charset = "gb2312";
HttpContext.Current.Response.ContentType = "application/ms-excel";
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;
//this.Page.EnableViewState = false;
// 添加头信息，为"文件下载/另存为"对话框指定默认文件名
HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + FileName + ".xls");
// 把文件流发送到客户端
HttpContext.Current.Response.Write("<html><head><meta http-equiv=Content-Type content=\"text/html; charset=utf-8\">");
HttpContext.Current.Response.Write(strContent);
HttpContext.Current.Response.Write("</body></html>");
// 停止页面的执行
//Response.End();
}
/// <summary>
/// 导出Excel
/// </summary>
/// <param name="obj"></param>
public void ExportData(GridView obj)
{
try
{
string style = "";
if (obj.Rows.Count > 0)
{
style = @"<style> .text { mso-number-format:\@; } </script> ";
}
else
{
style = "no data.";
}
HttpContext.Current.Response.ClearContent();
DateTime dt = DateTime.Now;
string filename = dt.Year.ToString() + dt.Month.ToString() + dt.Day.ToString() + dt.Hour.ToString() + dt.Minute.ToString() + dt.Second.ToString();
HttpContext.Current.Response.AddHeader("content-disposition", "attachment; filename=ExportData" + filename + ".xls");
HttpContext.Current.Response.ContentType = "application/ms-excel";
HttpContext.Current.Response.Charset = "GB2312";
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
obj.RenderControl(htw);
HttpContext.Current.Response.Write(style);
HttpContext.Current.Response.Write(sw.ToString());
HttpContext.Current.Response.End();
}
catch
{
}
}
}
}
using System.Data;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Text;
namespace DotNet.Utilities
{
/// <summary>
/// Summary description for GridViewExport
/// </summary>
public class GridViewExport
{
public GridViewExport()
{
//
// TODO: Add constructor logic here
//
}
public static void Export(string fileName, GridView gv)
{
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.AddHeader(
"content-disposition", string.Format("attachment; filename={0}", fileName));
HttpContext.Current.Response.ContentType = "application/ms-excel";
//HttpContext.Current.Response.Charset = "utf-8";
using (StringWriter sw = new StringWriter())
{
using (HtmlTextWriter htw = new HtmlTextWriter(sw))
{
// Create a form to contain the grid
Table table = new Table();
table.GridLines = GridLines.Both; //单元格之间添加实线
// add the header row to the table
if (gv.HeaderRow != null)
{
PrepareControlForExport(gv.HeaderRow);
table.Rows.Add(gv.HeaderRow);
}
// add each of the data rows to the table
foreach (GridViewRow row in gv.Rows)
{
PrepareControlForExport(row);
table.Rows.Add(row);
}
// add the footer row to the table
if (gv.FooterRow != null)
{
PrepareControlForExport(gv.FooterRow);
table.Rows.Add(gv.FooterRow);
}
// render the table into the htmlwriter
table.RenderControl(htw);
// render the htmlwriter into the response
HttpContext.Current.Response.Write(sw.ToString());
HttpContext.Current.Response.End();
}
}
}
/// <summary>
/// Replace any of the contained controls with literals
/// </summary>
/// <param name="control"></param>
private static void PrepareControlForExport(Control control)
{
for (int i = 0; i < control.Controls.Count; i++)
{
Control current = control.Controls[i];
if (current is LinkButton)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as LinkButton).Text));
}
else if (current is ImageButton)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as ImageButton).AlternateText));
}
else if (current is HyperLink)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as HyperLink).Text));
}
else if (current is DropDownList)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as DropDownList).SelectedItem.Text));
}
else if (current is CheckBox)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as CheckBox).Checked ? "True" : "False"));
}
if (current.HasControls())
{
PrepareControlForExport(current);
}
}
}
/// <summary>
/// 导出Grid的数据(全部)到Excel
/// 字段全部为BoundField类型时可用
/// 要是字段为TemplateField模板型时就取不到数据
/// </summary>
/// <param name="grid">grid的ID</param>
/// <param name="dt">数据源</param>
/// <param name="excelFileName">要导出Excel的文件名</param>
public static void OutputExcel(GridView grid, DataTable dt, string excelFileName)
{
Page page = (Page)HttpContext.Current.Handler;
page.Response.Clear();
string fileName = System.Web.HttpUtility.UrlEncode(System.Text.Encoding.UTF8.GetBytes(excelFileName));
page.Response.AddHeader("Content-Disposition", "attachment:filename=" + fileName + ".xls");
page.Response.ContentType = "application/vnd.ms-excel";
page.Response.Charset = "utf-8";
StringBuilder s = new StringBuilder();
s.Append("<HTML><HEAD><TITLE>" + fileName + "</TITLE><META http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"></head><body>");
int count = grid.Columns.Count;
s.Append("<table border=1>");
s.AppendLine("<tr>");
for (int i = 0; i < count; i++)
{
if (grid.Columns[i].GetType() == typeof(BoundField))
s.Append("<td>" + grid.Columns[i].HeaderText + "</td>");
//s.Append("<td>" + grid.Columns[i].HeaderText + "</td>");
}
s.Append("</tr>");
foreach (DataRow dr in dt.Rows)
{
s.AppendLine("<tr>");
for (int n = 0; n < count; n++)
{
if (grid.Columns[n].Visible && grid.Columns[n].GetType() == typeof(BoundField))
s.Append("<td>" + dr[((BoundField)grid.Columns[n]).DataField].ToString() + "</td>");
}
s.AppendLine("</tr>");
}
s.Append("</table>");
s.Append("</body></html>");
page.Response.BinaryWrite(System.Text.Encoding.GetEncoding("utf-8").GetBytes(s.ToString()));
page.Response.End();
}
}
}
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