C#GridViewExport帮助类，美化导出

1.将整 GridView的数据导出到Excel中关增加一个效果线做美化

最新的GridViewExport操作类

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>/// Summary description for GridViewExport/// </summary>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 gridTable table = new Table();table.GridLines = GridLines.Both;  //单元格之间添加实线//  add the header row to the tableif (gv.HeaderRow != null){PrepareControlForExport(gv.HeaderRow);table.Rows.Add(gv.HeaderRow);}//  add each of the data rows to the tableforeach (GridViewRow row in gv.Rows){PrepareControlForExport(row);table.Rows.Add(row);}//  add the footer row to the tableif (gv.FooterRow != null){PrepareControlForExport(gv.FooterRow);table.Rows.Add(gv.FooterRow);}//  render the table into the htmlwritertable.RenderControl(htw);//  render the htmlwriter into the responseHttpContext.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;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);}}}/// <summary>/// 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/// </summary>/// <param name="grid">grid的ID</param>/// <param name="dt">数据源</param>/// <param name="excelFileName">要导出Excel的文件名</param>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("<HTML><HEAD><TITLE>" + fileName + "</TITLE><META http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"></head><body>");int count = grid.Columns.Count;s.Append("<table border=1>");s.AppendLine("<tr>");for (int i = 0; i < count; i++){if (grid.Columns.GetType() == typeof(BoundField))s.Append("<td>" + grid.Columns.HeaderText + "</td>");//s.Append("<td>" + grid.Columns.HeaderText + "</td>");}s.Append("</tr>");foreach (DataRow dr in dt.Rows){s.AppendLine("<tr>");for (int n = 0; n < count; n++){if (grid.Columns[n].Visible && grid.Columns[n].GetType() == typeof(BoundField))s.Append("<td>" + dr[((BoundField)grid.Columns[n]).DataField].ToString() + "</td>");}s.AppendLine("</tr>");}s.Append("</table>");s.Append("</body></html>");page.Response.BinaryWrite(System.Text.Encoding.GetEncoding("utf-8").GetBytes(s.ToString()));page.Response.End();}}
}

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