怎么把页面中dataGrid 的数据导入到execl中!!!!!!!!!!!
请各位大哥帖上代码!!!!!!!!!!!!!!!!!!
还有引用什么using 类,生成才不会出错!!!!!!!!!!!!!!
请说清楚点!!!!!!!!!!!!!!
请各位大哥帖上代码!!!!!!!!!!!!!!!!!!
还有引用什么using 类,生成才不会出错!!!!!!!!!!!!!!
请说清楚点!!!!!!!!!!!!!!
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http://dotnet.aspx.cc/ShowDetail.aspx?id=EC5E84EC-68F9-4CD7-9E11-6F5C92027F0B
//创建一个Excel文件 Excel.Application myExcel = new Excel.Application ( ) ; myExcel.Application.Workbooks.Add ( true ) ; //让Excel文件可见 myExcel.Visible=true; //第一行为报表名称 myExcel.Cells[1,4]="普通报表"; //逐行写入数据, for(int i=0;i<this.dataSet11.Tables["net_ultrasurf"].Rows.Count;i++)
{
for(int j=0;j<this.dataSet11.Tables["net_ultrasurf"].Columns.Count;j++)
{
//以单引号开头,表示该单元格为纯文本
myExcel.Cells[2+i,1+j]="'"+this.dataSet11.Tables["net_ultrasurf"].Rows[i][j].ToString();
}
}
{
DataSet objDataset = new DataSet();
SqlConnection objConn = new SqlConnection();
objConn = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionSqlServer"].ToString());
objConn.Open();
SqlDataAdapter objAdapter = new SqlDataAdapter("Select top 5 * from customers where country='USA'",objConn);
objAdapter.Fill(objDataset);
DataView oView = new DataView(objDataset.Tables[0]);
dgExcel.DataSource = oView;
dgExcel.DataBind();
objConn.Close();
objConn.Dispose();
objConn = null;
if(Request.QueryString["bExcel"] == "1")
{
Response.ContentType = "application/vnd.ms-excel";
Response.Charset = ""; //关闭 ViewState
EnableViewState = false;
System.IO.StringWriter tw = new System.IO.StringWriter();//将信息写入字符串
System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);//在WEB窗体页上写出一系列连续的HTML特定字符和文本。
//此类提供ASP.NET服务器控件在将HTML内容呈现给客户端时所使用的格式化功能
//获取control的HTML
dgExcel.RenderControl(hw);//将DATAGRID中的内容输出到HtmlTextWriter对象中
// 把HTML写回浏览器
Response.Write(tw.ToString());
Response.End();
} }
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
//实现的代码
Response.Clear();
Response.Buffer= true;
Response.Charset="GB2312";
Response.AppendHeader("Content-Disposition","attachment;filename=FileName.xls");
Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
this.EnableViewState = false;
System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN",true);
System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
this.DataGrid1.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
这是怎么回事,是少了那个using 指令
{
// HttpContext.Current.Response.Charset ="GB2312";
HttpContext.Current.Response.Charset ="GB2312";
HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename=memory.xls");
HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.GetEncoding("GB2312");
HttpContext.Current.Response.ContentType ="application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msword
ctl.Page.EnableViewState =false;
System.IO.StringWriter tw = new System.IO.StringWriter() ;
System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter (tw);
ctl.RenderControl(hw);
HttpContext.Current.Response.Write(tw.ToString());
HttpContext.Current.Response.End();
}
调用ToExcel(DataGrid1)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>OutPutExcel</title>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<asp:DataGrid id="DataGrid1" runat="server"></asp:DataGrid>
<asp:Button id="Button1" runat="server" Text="输出到Excel"></asp:Button>
</form>
</body>
</HTML>//---------------------------------------------------------------
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;namespace eMeng.Exam
{
/// <summary>
/// OutPutExcel 的摘要说明。
/// </summary>
public class OutPutExcel : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.DataGrid DataGrid1; private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
DataGrid1.DataSource=CreateDataSource();
DataGrid1.DataBind();
}
/// <summary>
/// 创建数据源
/// </summary>
/// <returns>DataView</returns>
ICollection CreateDataSource()
{ DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add(new DataColumn("身份证号码", typeof(string)));
dt.Columns.Add(new DataColumn("图书单价",typeof(decimal)));
dt.Columns.Add(new DataColumn("购买数量",typeof(Int32)));
dt.Columns.Add(new DataColumn("总价格",typeof(decimal)));
for (int i = 0; i < 30; i++)
{
dr = dt.NewRow(); dr[0] = "123456789123456789";
dr[1] = 100 * i /3.0;
dr[2] = i + 5;
dr[3] = (decimal)dr[1] * (Int32)dr[2];
dt.Rows.Add(dr);
}
DataView dv = new DataView(dt);
return dv;
}
/// <summary>
/// 输出到Excel
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Button1_Click(object sender, System.EventArgs e)
{
//页面数据保存
Response.Clear();
Response.Buffer= true;
Response.Charset="GB2312";
Response.AppendHeader("Content-Disposition","attachment;filename=FileName.xls");
Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
this.EnableViewState = false;
System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN",true);
System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
this.DataGrid1.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End(); }
//---------------------------------------------------------------------
//-----------------------------------------------------------
#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
} /// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);
this.Load += new System.EventHandler(this.Page_Load); }
#endregion private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
e.Item.Cells[0].Attributes.Add("style","vnd.ms-excel.numberformat:@");
e.Item.Cells[3].Attributes.Add("style","vnd.ms-excel.numberformat:¥#,###.00");
}
}
}
}
{
DataSet objDataset = new DataSet();
SqlConnection objConn = new SqlConnection();
objConn = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionSqlServer"].ToString());
objConn.Open();
SqlDataAdapter objAdapter = new SqlDataAdapter("Select top 5 * from customers where country='USA'",objConn);
objAdapter.Fill(objDataset);
DataView oView = new DataView(objDataset.Tables[0]);
dgExcel.DataSource = oView;
dgExcel.DataBind();
objConn.Close();
objConn.Dispose();
objConn = null;
if(Request.QueryString["bExcel"] == "1")
{
Response.ContentType = "application/vnd.ms-excel";
Response.Charset = ""; //关闭 ViewState
EnableViewState = false;
System.IO.StringWriter tw = new System.IO.StringWriter();//将信息写入字符串
System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);//在WEB窗体页上写出一系列连续的HTML特定字符和文本。
//此类提供ASP.NET服务器控件在将HTML内容呈现给客户端时所使用的格式化功能
//获取control的HTML
dgExcel.RenderControl(hw);//将DATAGRID中的内容输出到HtmlTextWriter对象中
// 把HTML写回浏览器
Response.Write(tw.ToString());
Response.End();
} }
我这样写编译不会通过,报错如下:C:\Inetpub\wwwroot\Hotel\Teacher\MagListFound.aspx.cs(44): 找不到类型或命名空间名称“dgExcel”(是否缺少 using 指令或程序集引用?)
这是怎么回事,是少了那个using 指令
可能是 9.0或多或10.0,反正就是他.-->点选择-->确定.