最新ASP.NET导出EXCEL类
说明:可以导出ASP.NET页面和DATAGRID(WebControl)数据,可以导出表单头
using System;
using System.Data;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Diagnostics;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Collections;
namespace bookstore
{
///
/// Excel 的摘要说明。
///
public class Excel
{
public Excel()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
public void SaveToExcel(Page myPage, DataTable dt,DataGrid DG,string myExcelHeader,HtmlTable Tab,string myFileName)
{
HttpResponse resp;
resp=myPage.Response;
resp.ContentEncoding=Encoding.GetEncoding("GB18030");
resp.AppendHeader("Content-Disposition","attachment;filename="+myFileName+".xls");
resp.ContentType="application/ms-excel";
string colHeaders = "\t\t\t\t"+ myExcelHeader +"\n\n\n";
colHeaders+=tableHeader(Tab)+"\n";
StringBuilder sb=new StringBuilder();
int mycol=DG.Columns.Count;
ArrayList myAL=new ArrayList();
for(int i=0;i {
colHeaders +=DG.Columns[i].HeaderText+"\t";
myAL.Add(((System.Web.UI.WebControls.BoundColumn)(DG.Columns[i])).DataField);
}
colHeaders += "\n";
sb.Append(colHeaders);
int myrow=dt.Rows.Count;
for(int k=0;k {
foreach(string field in myAL)
{
sb.Append(dt.Rows[k][field]);
sb.Append("\t");
}
sb.Append("\n");
}
colHeaders=sb.ToString();
colHeaders=colHeaders+"\n";
resp.Write(colHeaders);
resp.End();
resp.Clear();
resp.Close();
}
/*得到表单头子*/
/*表单头子有TABLE组成,偶次项排列,TABLE在HTML中加 RUNAT=SERVER*/
public string tableHeader(HtmlTable Tab)
{
int iCols=Tab.Rows[0].Cells.Count;
int iRows=Tab.Rows.Count;
string str="";
for(int row=0;row {
for(int col=0;col {
if(col%2==1)//取偶次项的控件数据(目前只有TextBox和DropDownList,没有包含LABEL)
{
try
{
if(Tab.Rows[row].Cells[col].Controls[0].ToString()=="System.Web.UI.LiteralControl")
{
if(Tab.Rows[row].Cells[col].Controls[1].ToString()=="System.Web.UI.WebControls.TextBox")
{
str+=((System.Web.UI.WebControls.TextBox)(Tab.Rows[row].Cells[col].Controls[1])).Text+"\t";
}
if(Tab.Rows[row].Cells[col].Controls[1].ToString()=="System.Web.UI.WebControls.DropDownList")
{
str+=((System.Web.UI.WebControls.ListControl)(((System.Web.UI.WebControls.DropDownList)((Tab.Rows[row].Cells[col].Controls[1]))))).SelectedValue+"\t";
}
}
else
{
if(Tab.Rows[row].Cells[col].Controls[0].ToString()=="System.Web.UI.WebControls.TextBox")
{
str+=((System.Web.UI.WebControls.TextBox)(Tab.Rows[row].Cells[col].Controls[0])).Text+"\t";
}
if(Tab.Rows[row].Cells[col].Controls[0].ToString()=="System.Web.UI.WebControls.DropDownList")
{
str+=((System.Web.UI.WebControls.ListControl)(((System.Web.UI.WebControls.DropDownList)((Tab.Rows[row].Cells[col].Controls[0]))))).SelectedValue+"\t";
}
}
}
catch
{
str+=Tab.Rows[row].Cells[col].InnerHtml+"\t";
}
if((col+1)%iCols==0)
{
str+="\n";
}
}
else
{
str+="\t"+Tab.Rows[row].Cells[col].InnerHtml+"\t";
}
}
}
return(str);
}
}
}