ASP.NET常用导出Excel方法汇总
本文转载:http://mattberseth.com/blog/2007/04/export_gridview_to_excel_1.html
http://geekswithblogs.net/azamsharp/archive/2005/12/21/63843.aspx
http://forums.asp.net/t/1221467.aspx
C# Excel操作类 ExcelHelper
http://www.cnblogs.com/nhsd/p/3968374.html
Export GridView to Excel
using System;
using System.Data;
using System.Configuration;
using System.IO;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls; /// <summary>
///
/// </summary>
public class GridViewExportUtil
{
/// <summary>
///
/// </summary>
/// <param name="fileName"></param>
/// <param name="gv"></param>
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"; using (StringWriter sw = new StringWriter())
{
using (HtmlTextWriter htw = new HtmlTextWriter(sw))
{
// Create a table to contain the grid
Table table = new Table(); // include the gridline settings
table.GridLines = gv.GridLines; // add the header row to the table
if (gv.HeaderRow != null)
{
GridViewExportUtil.PrepareControlForExport(gv.HeaderRow);
table.Rows.Add(gv.HeaderRow);
} // add each of the data rows to the table
foreach (GridViewRow row in gv.Rows)
{
GridViewExportUtil.PrepareControlForExport(row);
table.Rows.Add(row);
} // add the footer row to the table
if (gv.FooterRow != null)
{
GridViewExportUtil.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())
{
GridViewExportUtil.PrepareControlForExport(current);
}
}
}
}
本文转载:http://www.webpronews.com/aspnet-export-a-datatable-to-excel-2006-11
ASP.NET: Export a DataTable to Excel
Back in February I wrote a post on how to export DataTables to XML and Excel and I still get a lot of search engine traffic to that post.
People have been asking me to simplify the example and only concentrate on the Excel export, so that’s what I will do now.
All spreadsheet applications (Excel, Calc etc.) understand semicolon separated files natively, so everyone can use this method – you don’t even have to use Excel for it to work.
public static void ExportToSpreadsheet(DataTable table, string name)
{
HttpContext context = HttpContext.Current;
context.Response.Clear();
foreach (DataColumn column in table.Columns)
{
context.Response.Write(column.ColumnName + ";");
}
context.Response.Write(Environment.NewLine);
foreach (DataRow row in table.Rows)
{
for (int i = 0; i < table.Columns.Count; i++)
{
context.Response.Write(row[i].ToString().Replace(";", string.Empty) + ";");
}
context.Response.Write(Environment.NewLine);
}
context.Response.ContentType = "text/csv";
context.Response.AppendHeader("Content-Disposition", "attachment; filename=" + name + ".csv");
context.Response.End();
}
Then just call this method and pass the DataTable and the filename as parameters.
ExportToSpreadsheet(table, "products");
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