GridView在C#中如何导出Excel-创新互联
小编给大家分享一下GridView在C#中如何导出Excel,相信大部分人都还不怎么了解,因此分享这篇文章给大家参考一下,希望大家阅读完这篇文章后大有收获,下面让我们一起去了解一下吧!
网站建设哪家好,找创新互联公司!专注于网页设计、网站建设、微信开发、小程序制作、集团企业网站建设等服务项目。为回馈新老客户创新互联还提供了同德免费建站欢迎大家使用!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 description for GridViewExport /// 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(); } } } ////// Replace any of the contained controls with literals /// /// 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); } } } ////// 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 /// /// grid的ID /// 数据源 /// 要导出Excel的文件名 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("" + fileName + " "); int count = grid.Columns.Count; s.Append("
" + grid.Columns[i].HeaderText + " | "); //s.Append("" + grid.Columns[i].HeaderText + " | "); } s.Append("
" + dr[((BoundField)grid.Columns[n]).DataField].ToString() + " | "); } s.AppendLine("
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