我在我的C#asp.net表单应用程序中使用了gridview,并启用了#34; AllowPaging"现在每当我想将它转换为excel时,只显示第一页。使用" HtmlTextWriter"完成转换。和" StringWriter"。
- 提前谢谢。
答案 0 :(得分:1)
要从gridview导出excel,您可以在项目中使用以下类。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Web.UI.WebControls;
using System.Web.UI;
using System.Web;
namespace gride_edit
{
public class GridToExcel
{
public static void ExportToExcel(string strFileName, GridView gv)
{
using (StringWriter sw = new StringWriter())
{
using (HtmlTextWriter htw = new HtmlTextWriter(sw))
{
// Create a form to contain the grid
Table table = new Table();
// 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);
row.Style["background-color"] = "#FFFBD6";
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);
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", strFileName));
HttpContext.Current.Response.ContentType = "application/ms-excel";
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
//render the htmlwriter into the response
HttpContext.Current.Response.Write(sw.ToString());
HttpContext.Current.Response.End();
}
}
}
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 HiddenField)
{
control.Controls.Remove(current);
}
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);
}
}
}
}
}
并可以调用此函数进行导出。
GridToExcel.ExportToExcel("Report" + DateTime.Now.ToString("yyyyMMddhhmmss").ToString() + ".xls", GridView1);
要导出一个excel来自多个分页gridview,只需在调用convert函数&#34; ExportToExcel()&#34;之前使用这些行。
GridView1.AllowPaging = false;
bindGridView();
我得到了#34; GridToExcel&#34;从互联网上课。它对我有用,希望它也适合你。请告诉我。
答案 1 :(得分:0)
通常,您可以使用以下功能
public void Export(HttpResponseBase Response, object data)
{
var gridItem = new System.Web.UI.WebControls.GridView();
gridItem.DataSource = data;
gridItem.DataBind();
StringWriter writer = new StringWriter();
HtmlTextWriter html = new HtmlTextWriter(writer);
Response.ClearContent();
Response.AddHeader("content-disposition", "attachment; filename=result.xls");
Response.ContentType = "application/excel";
gridItem.RenderControl(html);
Response.Write(writer.ToString());
Response.End();
}
您可以将此功能称为
var details = /* your query result goes here */ ;
Export(Response , details );
希望它可以帮到你