1、由dataset生成
public void CreateExcel(DataSet ds,string typeid,string FileName)
{
HttpResponse resp;
resp = Page.Response;
resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
resp.AppendHeader("Content-Disposition", "attachment;filename=" + FileName);
string colHeaders= "", ls_item="";
int i=0;
//定義表對象與行對像，同時用DataSet對其值進行初始化
DataTable dt=ds.Tables[0];
DataRow[] myRow=dt.Select("");
// typeid=="1"時導出為Excel格式文件；typeid=="2"時導出為XML格式文件
if(typeid=="1")
{
//取得數據表各列標題，各標題之間以"t分割，最後一個列標題後加回車符
for(i=0;i colHeaders+=dt.Columns[i].Caption.ToString()+""t";
colHeaders +=dt.Columns[i].Caption.ToString() +""n";
//向HTTP輸出流中寫入取得的數據信息
resp.Write(colHeaders);
//逐行處理數據
foreach(DataRow row in myRow)
{
//在當前行中，逐列獲得數據，數據之間以"t分割，結束時加回車符"n
for(i=0;i ls_item +=row[i].ToString() + ""t";
ls_item += row[i].ToString() +""n";
//當前行數據寫入HTTP輸出流，並且置空ls_item以便下行數據
resp.Write(ls_item);
ls_item="";
}
}
else
{
if(typeid=="2")
{
//從DataSet中直接導出XML數據並且寫到HTTP輸出流中
resp.Write(ds.GetXML());
}
}
//寫緩沖區中的數據到HTTP頭文件中
resp.End();
}
2、由datagrid生成
public void ToExcel(System.Web.UI.Control ctl)
{
HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename=Excel.xls");
HttpContext.Current.Response.Charset ="UTF-8";
HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default;
HttpContext.Current.Response.ContentType ="application/ms-Excel";//image/JPEG;text/Html;image/GIF;vnd.ms-Excel/msWord
ctl.Page.EnableVIEwState =false;
System.IO.StringWriter tw = new System.IO.StringWriter() ;
System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWrit
er (tw);
ctl.RenderControl(hw);
HttpContext.Current.Response.Write(tw.ToString());
HttpContext.Current.Response.End();
}
用法：ToExcel(datagrid1);
3、這個用datavIEw
public void OutputExcel(DataVIEw dv,string str)
{
//
// TODO: 在此處添加構造函數邏輯
//
//dv為要輸出到Excel的數據，str為標題名稱
GC.Collect();
Application Excel;// = new Application();
int rowIndex=4;
int colIndex=1;
_Workbook xBk;
_Worksheet xSt;
Excel= new ApplicationClass();
xBk = Excel.Workbooks.Add(true);
xSt = (_Worksheet)xBk.ActiveSheet;
//
//取得標題
//
foreach(DataColumn col in dv.Table.Columns)
{
colIndex++;
Excel.Cells[4,colIndex] = col.ColumnName;
xSt.get_Range(excel.Cells[4,colIndex],Excel.Cells[4,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置標題格式為居中對齊
}
//
//取得表格中的數據
//
foreach(DataRowVIEw row in dv)
{
rowIndex ++;
colIndex = 1;
foreach(DataColumn col in dv.Table.Columns)
{
colIndex ++;
if(col.DataType == System.Type.GetType("System.DateTime"))
{
Excel.Cells[rowIndex,colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd");
xSt.get_Range(excel.Cells[rowIndex,colIndex],Excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置日期型的字段格式為居中對齊
}
else
if(col.DataType == System.Type.GetType("System.String"))
{
Excel.Cells[rowIndex,colIndex] = "'"+row[col.ColumnName].ToString();
xSt.get_Range(excel.Cells[rowIndex,colIndex],Excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置字符型的字段格式為居中對齊
}
else
{
Excel.Cells[rowIndex,colIndex] = row[col.ColumnName].ToString();
}
}
}
//
//加載一個合計行
//
int rowSum = rowIndex + 1;
int colSum = 2;
Excel.Cells[rowSum,2] = "合計";
xSt.get_Range(excel.Cells[rowSum,2],Excel.Cells[rowSum,2]).HorizontalAlignment = XlHAlign.xlHAlignCenter;
//
//設置選中的部分的顏色
//
xSt.get_Range(excel.Cells[rowSum,colSum],Excel.Cells[rowSum,colIndex]).Select();
xSt.get_Range(excel.Cells[rowSum,colSum],Excel.Cells[rowSum,colIndex]).Interior.ColorIndex = 19;//設置為淺黃.色，共計有56種
//
//取得整個報表的標題
//
Excel.Cells[2,2] = str;
//
//設置整個報表的標題格式
//
xSt.get_Range(excel.Cells[2,2],Excel.Cells[2,2]).Font.Bold = true;
xSt.get_Range(excel.Cells[2,2],Excel.Cells[2,2]).Font.Size = 22;
//
//設置報表表格為最適應寬度
//
xSt.get_Range(excel.Cells[4,2],Excel.Cells[rowSum,colIndex]).Select();
xSt.get_Range(excel.Cells[4,2],Excel.Cells[rowSum,colIndex]).Columns.AutoFit();
//
//設置整個報表的標題為跨列居中
//
xSt.get_Range(excel.Cells[2,2],Excel.Cells[2,colIndex]).Select();
xSt.get_Range(excel.Cells[2,2],Excel.Cells[2,colIndex]).HorizontalAlignment = XlHAlign.xlHAlignCenterAcrossSelection;
//
//繪制邊框
//
xSt.get_Range(excel.Cells[4,2],Excel.Cells[rowSum,colIndex]).Borders.LineStyle = 1;
xSt.get_Range(excel.Cells[4,2],Excel.Cells[rowSum,2]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//設置左邊線加粗
xSt.get_Range(excel.Cells[4,2],Excel.Cells[4,colIndex]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//設置上邊線加粗
xSt.get_Range(excel.Cells[4,colIndex],Excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;//設置右邊線加粗
xSt.get_Range(excel.Cells[rowSum,2],Excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//設置下邊線加粗
//
//顯示效果
//
Excel.Visible=true;
//xSt.Export(Server.MapPath(".")+""""+this.xlfile.Text+".xls",SheetExportActionEnum.ssExportActionNone,Microsoft.Office.Interop.OWC.SheetExportFormat.ssExportHtml);
xBk.SaveCopyAs(Server.MapPath(".")+""""+this.xlfile.Text+".xls");
ds = null;
xBk.Close(false, null,null);
Excel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk);
System.Runtime.InteropServices.Marshal.ReleaseComObject(Excel);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt);
xBk = null;
Excel = null;
xSt = null;
GC.Collect();
string path = Server.MapPath(this.xlfile.Text+".xls");
System.IO.FileInfo file = new System.IO.FileInfo(path);
Response.Clear();
Response.Charset="GB2312";
Response.ContentEncoding=System.Text.Encoding.UTF8;
// 添加頭信息，為"文件下載/另存為"對話框指定默認文件名
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(file.Name));
// 添加頭信息，指定文件大小，讓浏覽器能夠顯示下載進度
Response.AddHeader("Content-Length", file.Length.ToString());
// 指定返回的是一個不能被客戶端讀取的流，必須被下載
Response.ContentType = "application/ms-Excel";
// 把文件流發送到客戶端
Response.WriteFile(file.FullName);
// 停止頁面的執行
Response.End();
}
