EXCEL 다운받기

protected void btnExcel_Click(object sender, ImageClickEventArgs e)
{
ArrayList arrColumn = new ArrayList();
DataSet ds = null;
ds = getDBData
arrColumn.Add(CreateBoundColumn("code_title", "구분"));
arrColumn.Add(CreateBoundColumn("dlscnt", "제정"));
arrColumn.Add(CreateBoundColumn("dlrcnt", "개정"));
arrColumn.Add(CreateBoundColumn("dltotcnt", "Total"));
arrColumn.Add(CreateBoundColumn("lscnt", "제정"));
arrColumn.Add(CreateBoundColumn("lrcnt", "개정"));
arrColumn.Add(CreateBoundColumn("ltotcnt", "Total"));
arrColumn.Add(CreateBoundColumn("scnt", "제정"));
arrColumn.Add(CreateBoundColumn("rcnt", "개정"));
arrColumn.Add(CreateBoundColumn("totcnt", "Total


string fileName = "order" + DateTime.Now.ToString("yyyyMMdd") + ".xls";


SaveAsExcel(ds, arrColumn, "", fileName);
}
private void SaveAsExcel(DataSet dsResult, ArrayList columns, string subject, string fileName)
{
if (fileName.Equals(null) && fileName.Equals(""))
fileName = DateTime.Now.ToString("yyyyMMdd") + ".xls";
System.Web.HttpContext.Current.Response.Buffer = true;
DataGrid dgExcel = new DataGrid();
dgExcel.ShowHeader = true;
dgExcel.Caption = subject;
dgExcel.AutoGenerateColumns = false;
foreach (object column in columns)
dgExcel.Columns.Add((BoundColumn)column);
dgExcel.HeaderStyle.BackColor = Color.FromName("powderblue");
dgExcel.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
dgExcel.HeaderStyle.Height = 25;
dgExcel.HeaderStyle.Font.Bold = true;
dgExcel.DataSource = dsResult;
dgExcel.DataBind();

System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
System.Web.HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("euc-kr");

System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" +
HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8) + ";charset=euc-kr");

System.Web.HttpContext.Current.Response.ContentType = "application/unknown";

//////////////////////////////////////////////////////////
///  한글이 깨지는 경우 web.config의 globalization을 euc-kr로 바꿔주세요.
//////////////////////////////////////////////////////
System.Web.HttpContext.Current.Response.Write("");

dgExcel.EnableViewState = false;

System.IO.StringWriter sWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWriter = new System.Web.UI.HtmlTextWriter(sWriter);
dgExcel.RenderControl(htmlWriter);
System.Web.HttpContext.Current.Response.Write(sWriter.ToString());
System.Web.HttpContext.Current.Response.End();
dgExcel.Dispose();
}

public BoundColumn CreateBoundColumn(string DataFieldValue, string HeaderTextValue)
{
// Create a BoundColumn.
BoundColumn column = new BoundColumn();

// Set the properties of the BoundColumn.
column.DataField = DataFieldValue;
column.HeaderText = HeaderTextValue;
return column;
}

public BoundColumn CreateBoundColumn(string DataFieldValue, string HeaderTextValue, string FormatValue, HorizontalAlign AlignValue)
{
// Create a BoundColumn using the overloaded CreateBoundColumn method.
BoundColumn column = CreateBoundColumn(DataFieldValue, HeaderTextValue);

// Set the properties of the BoundColumn.
column.DataFormatString = FormatValue;
column.ItemStyle.HorizontalAlign = AlignValue;
return column;
}