出口的GridView行Excel工作表 [英] export gridview rows to excel sheet
本文介绍了出口的GridView行Excel工作表的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在我的项目导出网格视图行Excel工作表我serached有任务,我不得不code,我做到了,但这一类从网格视图出口仅当前页面,所以我想也有以出口的所有GridView的行。
类:
使用系统;
使用System.Data这;
使用System.Configuration;
使用System.IO;
使用的System.Web;
使用System.Web.Security;
使用System.Web.UI程序;
使用System.Web.UI.WebControls;
使用System.Web.UI.WebControls.WebParts;
使用System.Web.UI.HtmlControls;///<总结>
///
///< /总结>
公共类GridViewExportUtil
{
///<总结>
///
///< /总结>
///< PARAM NAME =文件名>< /参数>
///< PARAM NAME =GV>< /参数>
公共静态无效的出口(字符串文件名,GridView的GV)
{
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.AddHeader(
内容处置的String.Format(附件;文件名= {0},文件名));
HttpContext.Current.Response.ContentType =应用程序/ MS-Excel的; 使用(StringWriter的SW =新的StringWriter())
{
使用(HTW的HtmlTextWriter =新的HtmlTextWriter(SW))
{
//创建一个表单包含网格
表的表=新表(); //标题行添加到表
如果(gv.HeaderRow!= NULL)
{
GridViewExportUtil prepareControlForExport(gv.HeaderRow)。
table.Rows.Add(gv.HeaderRow);
} //每个数据行添加到表
的foreach(在gv.Rows GridViewRow行)
{
GridViewExportUtil prepareControlForExport(行)。
table.Rows.Add(行);
} //尾行添加到表
如果(gv.FooterRow!= NULL)
{
GridViewExportUtil prepareControlForExport(gv.FooterRow)。
table.Rows.Add(gv.FooterRow);
} //渲染表到的HTMLWriter
table.RenderControl(HTW); //渲染的HTMLWriter到响应
HttpContext.Current.Response.Write(sw.ToString());
HttpContext.Current.Response.End();
}
}
}///<总结>
///更换任何包含的控件与文本
///< /总结>
///< PARAM NAME =控制>< /参数>
私有静态无效prepareControlForExport(控制控制)
{
的for(int i = 0; I< control.Controls.Count;我++)
{
控制电流= control.Controls [I];
如果(电流的LinkButton)
{
control.Controls.Remove(电流);
control.Controls.AddAt(I,新LiteralControl((电流LinkButton的)。文本));
}
否则,如果(电流的ImageButton)
{
control.Controls.Remove(电流);
control.Controls.AddAt(I,新LiteralControl((电流的ImageButton).AlternateText));
}
否则,如果(电流为超链接)
{
control.Controls.Remove(电流);
control.Controls.AddAt(I,新LiteralControl((当前为超链接)。文本));
}
否则,如果(电流的DropDownList)
{
control.Controls.Remove(电流);
control.Controls.AddAt(I,新LiteralControl((电流的DropDownList).SelectedItem.Text));
}
否则,如果(目前是复选框)
{
control.Controls.Remove(电流);
control.Controls.AddAt(I,新LiteralControl((电流复选框).Checked真:假));
} 如果(current.HasControls())
{
GridViewExportUtil prepareControlForExport(电流)。
}
}
}
}
CS:
保护无效imgbtn_export_Click(对象发件人,ImageClickEventArgs E)
{
GridViewExportUtil.Export(Problems.xls,this.GridView1);
}
解决方案
请问你的GridView适用什么特别的,是不是已经在它绑定到数据源的数据?如果没有,我会建议你直接从GridView控件绑定到同一数据导出,从而避免不必处理分页。
I had task in my project to export grid view rows to excel sheet I serached and I had code and I did it but this class export only current page from grid view so I want also to export all gridview rows.
Class:
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 form to contain the grid
Table table = new Table();
// 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);
}
}
}
}
CS:
protected void imgbtn_export_Click(object sender, ImageClickEventArgs e)
{
GridViewExportUtil.Export("Problems.xls", this.GridView1);
}
解决方案
Does your gridview apply anything special to the data that is not already in the data source that it is bound to? If not, I would suggest you export directly from the same dataset that the gridview is bound to, thereby avoiding having to deal with pagination.
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