ASP.NET中数据导入至Excel
把asp.net中的数据直接导入至excel表中的例子。
1.web.config中加入
<identity impersonate="true"/>
2.用Microsoft.Excel 11.0 Object Library COM组件
3.下面代码。
1.web.config中加入
<identity impersonate="true"/>
2.用Microsoft.Excel 11.0 Object Library COM组件
3.下面代码。
1
using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Web;
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using System.Web.SessionState;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.HtmlControls;
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using System.Data.SqlClient;
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using System.Configuration;
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using System.Runtime.InteropServices;
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using Excel;
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using System.Reflection;
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namespace CSharpNET_ExcelTest
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{
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/// <summary>
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/// WebForm1 的摘要说明。
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/// </summary>
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public class WebForm1 : System.Web.UI.Page
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{
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private void Page_Load(object sender, System.EventArgs e)
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{
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Excel.Application oExcel=new Excel.Application();
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Excel.Workbooks oBooks;
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Excel.Workbook oBook;
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Excel.Sheets oSheets;
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Excel.Worksheet oSheet;
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Excel.Range oCells;
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string sFile,sTemplate;
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DataSet objDataset=new DataSet();
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System.Data.DataTable dt = ((System.Data.DataTable)(CreateDataSource().Tables[0]));
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sFile=Server.MapPath(Request.ApplicationPath)+@"\MyExcel.xls";
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sTemplate=Server.MapPath(Request.ApplicationPath) +@"\MyTemplate.xls";
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oExcel.DisplayAlerts=false;
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oBooks=oExcel.Workbooks;
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try
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{
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// 在VB.net中一般用open
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oBooks.Add(Server.MapPath(Request.ApplicationPath) + @"\MyTemplate.xls") ;
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}
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catch
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{
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}
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oBook=oBooks[1];
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oSheets=oBook.Worksheets;
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oSheet=(Excel.Worksheet) oSheets[1];
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oBook = oBooks[1];
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oSheet.Name="First Sheet";
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oCells=oSheet.Cells;
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DumpData(dt,oCells);
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// 注意此处为10个参数
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oSheet.SaveAs(sFile,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,
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Excel.XlSaveAsAccessMode.xlExclusive,Missing.Value,Missing.Value,
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Missing.Value);
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oBook.Close(Missing.Value,Missing.Value,Missing.Value);
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oExcel.Quit();
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Marshal.ReleaseComObject(oCells);
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Marshal.ReleaseComObject(oSheet);
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Marshal.ReleaseComObject(oSheets) ;
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Marshal.ReleaseComObject(oBook);
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Marshal.ReleaseComObject(oBooks);
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Marshal.ReleaseComObject(oExcel);
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oExcel = null;
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oBooks = null;
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oBook = null;
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oSheets = null;
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oSheet = null ;
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oCells = null;
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System.GC.Collect();
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Response.Redirect(sFile);
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}
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private void DumpData(System.Data.DataTable dt,Excel.Range oCells)
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{
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int iCol;
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int iRow;
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DataRow dr;
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object[] ary;
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for (iCol=0;iCol<dt.Columns.Count;iCol++)
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{
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oCells[2,iCol+1]=dt.Columns[iCol].ToString();
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}
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for (iRow=0 ;iRow<dt.Rows.Count;iRow++)
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{
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dr=dt.Rows[iRow];
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ary=dr.ItemArray;
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for(iCol=0 ;iCol<ary.GetUpperBound(0);iCol++)
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{
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oCells[iRow+3,iCol+1]=ary[iCol].ToString();
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Response.Write(ary[iCol].ToString()+"\t");
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}
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}
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}
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public System.Data.DataSet CreateDataSource()
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{
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System.Data.DataSet ds = new System.Data.DataSet();
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System.Data.DataTable dt = new System.Data.DataTable();
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System.Data.DataRow dr;
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dt.Columns.Add(new DataColumn("身份证号码", typeof(string)));
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dt.Columns.Add(new DataColumn("图书单价", typeof(float)));
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dt.Columns.Add(new DataColumn("购买数量", typeof(Int32)));
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dt.Columns.Add(new DataColumn("总价格", typeof(float)));
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for (Int32 i = 0; i <= 10; i++)
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{
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dr = dt.NewRow();
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dr[0] = "123456789123456789";
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dr[1] = 100 * i / 3;
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dr[2] = i + 5;
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dr[3] = (float)dr[1] * (Int32) dr[2];
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dt.Rows.Add(dr);
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}
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ds.Tables.Add(dt);
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return ds;
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}
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133
134
Web 窗体设计器生成的代码
153
}
154
}
155
using System;2
using System.Collections;3
using System.ComponentModel;4
using System.Data;5
using System.Drawing;6
using System.Web;7
using System.Web.SessionState;8
using System.Web.UI;9
using System.Web.UI.WebControls;10
using System.Web.UI.HtmlControls;11
using System.Data.SqlClient;12
using System.Configuration;13
using System.Runtime.InteropServices;14
using Excel;15
using System.Reflection;16

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namespace CSharpNET_ExcelTest18
{19
/// <summary>20
/// WebForm1 的摘要说明。21
/// </summary>22
public class WebForm1 : System.Web.UI.Page23
{24
private void Page_Load(object sender, System.EventArgs e) 25
{ 26
Excel.Application oExcel=new Excel.Application();27
Excel.Workbooks oBooks;28
Excel.Workbook oBook;29
Excel.Sheets oSheets;30
Excel.Worksheet oSheet;31
Excel.Range oCells;32
string sFile,sTemplate;33
DataSet objDataset=new DataSet();34

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System.Data.DataTable dt = ((System.Data.DataTable)(CreateDataSource().Tables[0])); 36

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sFile=Server.MapPath(Request.ApplicationPath)+@"\MyExcel.xls";38
sTemplate=Server.MapPath(Request.ApplicationPath) +@"\MyTemplate.xls";39
oExcel.DisplayAlerts=false;40
oBooks=oExcel.Workbooks; 41
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try43
{44
// 在VB.net中一般用open45
oBooks.Add(Server.MapPath(Request.ApplicationPath) + @"\MyTemplate.xls") ;46
}47
catch48
{ 49
}50

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oBook=oBooks[1];52
oSheets=oBook.Worksheets;53
oSheet=(Excel.Worksheet) oSheets[1];54

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oBook = oBooks[1]; 56
oSheet.Name="First Sheet";57
oCells=oSheet.Cells;58
DumpData(dt,oCells);59

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// 注意此处为10个参数61
oSheet.SaveAs(sFile,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value, 62
Excel.XlSaveAsAccessMode.xlExclusive,Missing.Value,Missing.Value, 63
Missing.Value); 64

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oBook.Close(Missing.Value,Missing.Value,Missing.Value);66

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oExcel.Quit();68
Marshal.ReleaseComObject(oCells);69
Marshal.ReleaseComObject(oSheet);70
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Marshal.ReleaseComObject(oSheets) ;72
Marshal.ReleaseComObject(oBook);73
Marshal.ReleaseComObject(oBooks);74
Marshal.ReleaseComObject(oExcel);75
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oExcel = null;77
oBooks = null;78
oBook = null;79
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oSheets = null;81
oSheet = null ;82
oCells = null;83
System.GC.Collect();84
Response.Redirect(sFile); 85

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} 87

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private void DumpData(System.Data.DataTable dt,Excel.Range oCells)89
{90
int iCol;91
int iRow; 92
DataRow dr;93
object[] ary;94
for (iCol=0;iCol<dt.Columns.Count;iCol++)95
{96
oCells[2,iCol+1]=dt.Columns[iCol].ToString();97
}98

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for (iRow=0 ;iRow<dt.Rows.Count;iRow++)100
{101
dr=dt.Rows[iRow];102
ary=dr.ItemArray;103
for(iCol=0 ;iCol<ary.GetUpperBound(0);iCol++)104
{105
oCells[iRow+3,iCol+1]=ary[iCol].ToString();106
Response.Write(ary[iCol].ToString()+"\t");107
}108
}109
}110

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public System.Data.DataSet CreateDataSource() 112
{ 113
System.Data.DataSet ds = new System.Data.DataSet(); 114
System.Data.DataTable dt = new System.Data.DataTable(); 115
System.Data.DataRow dr; 116
dt.Columns.Add(new DataColumn("身份证号码", typeof(string))); 117
dt.Columns.Add(new DataColumn("图书单价", typeof(float))); 118
dt.Columns.Add(new DataColumn("购买数量", typeof(Int32))); 119
dt.Columns.Add(new DataColumn("总价格", typeof(float))); 120
for (Int32 i = 0; i <= 10; i++) 121
{ 122
dr = dt.NewRow(); 123
dr[0] = "123456789123456789"; 124
dr[1] = 100 * i / 3; 125
dr[2] = i + 5; 126
dr[3] = (float)dr[1] * (Int32) dr[2]; 127
dt.Rows.Add(dr); 128
} 129
ds.Tables.Add(dt); 130
return ds; 131
}132

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Web 窗体设计器生成的代码153
}154
}155



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