《WebForm开发系列高级篇》Item2导出EXCEL通用类(GridView,DataList,Repeater,DetailView)
1.导出效果图：
2.C#导出EXCEL通用类源代码：
using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.IO;
using System.Text;
using System.Drawing;
///
///CommonClass 的摘要说明
///
public class CommonClass
{
public CommonClass()
{
//
//TODO: 在此处添加构造函数逻辑
//
}
public static void ReportToExcel(System.Web.UI.Control ctl, string fileName)
{
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF7;
HttpContext.Current.Response.ContentType = "application/ms-excel";
HttpContext.Current.Response.Charset = "gb2312";
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName + ".xls", Encoding.UTF8).ToString());
ClearChildControls(ctl);
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
ctl.RenderControl(htw);
HttpContext.Current.Response.Write(sw.ToString());
HttpContext.Current.Response.End();
}
private static void RecursiveClear(Control control)
{
for (int i = control.Controls.Count - 1; i >= 0; i--)
{
RecursiveClear(control.Controls[i]);
}
if (control is Repeater)
{
control.Parent.Controls.Remove(control);
}
else if (control is LinkButton)
{
LiteralControl literal = new LiteralControl();
control.Parent.Controls.Add(literal);
literal.Text = ((LinkButton)control).Text;
control.Parent.Controls.Remove(control);
}
else if (control is Button)
{
control.Parent.Controls.Remove(control);
}
else if (control is System.Web.UI.WebControls.Image)
{
if (((System.Web.UI.WebControls.Image)control).Visible)
{
control.Parent.Controls.Add(new LiteralControl("o"));
}
control.Parent.Controls.Remove(control);
}
else if (control is ListControl)
{
LiteralControl literal = new LiteralControl();
control.Parent.Controls.Add(literal);
try
{
literal.Text = ((ListControl)control).SelectedItem.Text;
}
catch
{
}
control.Parent.Controls.Remove(control);
}
return;
}
protected static void ClearChildControls(Control dg1)
{
if (dg1 is GridView)
{
GridView dg = (GridView)dg1;
for (int i = dg.Columns.Count - 1; i >= 0; i--)
{
if (dg.Columns[i].GetType().Name == "ButtonColumn"
|| dg.Columns[i].GetType().Name == "CheckBoxField"
|| dg.Columns[i].GetType().Name == "CommandField")
{
dg.Columns[i].Visible = false;
}
}
RecursiveClear(dg1);
}
else
{
RecursiveClear(dg1);
}
}
}
3.调用方法：
CommonClass.ReportToExcel(GridView1, "从GridView导出的EXCEL");(责任编辑：51CSharp.net)
