导出数据到execl如何设置sheet的名称
我用下面这个函数来把数据导出到execl
public void CreateExcel(DataSet ds)
{
HttpResponse resp;
resp = Page.Response;
resp.ContentEncoding = System.Text.Encoding.GetEncoding( "GB2312 ");
resp.ContentType = "application/ms-excel ";
resp.AppendHeader( "Content-Disposition ", "attachment;filename= " + DateTime.Now.ToString( "yyyyMMddHHmmss ") + ".xls ");
string colHeaders = " ", ls_item = " ";
int i = 0;
//定义表对象与行对像，同时用DataSet对其值进行初始化
DataTable dt = ds.Tables[0];
DataRow[] myRow = dt.Select( " ");
//取得数据表各列标题，各标题之间以\t分割，最后一个列标题后加回车符
for (i = 0; i < ds.Tables[0].Columns.Count; i++)
colHeaders += dt.Columns[i].Caption.ToString() + "\t ";
colHeaders += "\n ";
//向HTTP输出流中写入取得的数据信息
resp.Write(colHeaders);
//逐行处理数据
foreach (DataRow row in myRow)
{
//在当前行中，逐列获得数据，数据之间以\t分割，结束时加回车符\n
for (i = 0; i < ds.Tables[0].Columns.Count; i++)
ls_item += row[i].ToString() + "\t ";
ls_item += "\n ";
//当前行数据写入HTTP输出流，并且置空ls_item以便下行数据
resp.Write(ls_item);
ls_item = " ";
}
resp.End();
}
导出后的电子表格的sheet的名称与文件名一样，但是我想统一设置成Sheet1，请高手指点一下！多谢了！
[解决办法]
Microsoft.Office.Interop.Excel.Application oExcel = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel.Workbooks oBooks;
Microsoft.Office.Interop.Excel.Workbook oBook;
Microsoft.Office.Interop.Excel.Sheets oSheets;
Microsoft.Office.Interop.Excel.Worksheet oSheet;
Microsoft.Office.Interop.Excel.Range oCells;
string sFile = Server.MapPath( "\\MyExcel.xls ");
oExcel.Visible = false;
oExcel.DisplayAlerts = false ;
oBooks = oExcel.Workbooks;
oBooks.Add(Type.Missing);
oBook=oExcel.ActiveWorkbook;
oSheets = oBook.Worksheets;
oSheet = (Microsoft.Office.Interop.Excel.Worksheet)oSheets[1];
oSheet.Name = "Second Sheet ";
oCells = oSheet.Cells;
oCells[2,5] = "测试数据A ";
oCells[2,6] = "测试数据B ";
//这里要根据你机器上office的版本调整参数个数，自己看一下saveas方法需要几个参数，适当添加或删除，我现在用的2007，10参数。
oSheet.SaveAs(sFile ,Type.Missing,Type.Missing,Type.Missing,Type.Missing ,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing);
oBook.Close(null,null,null);
oExcel.Quit();
Marshal.ReleaseComObject(oCells);
Marshal.ReleaseComObject(oSheet);
Marshal.ReleaseComObject(oSheets);
Marshal.ReleaseComObject(oBook) ;
Marshal.ReleaseComObject(oBooks) ;
Marshal.ReleaseComObject(oExcel);
oExcel = null ;
oBooks = null ;
oBook = null;
oSheets = null ;
oSheet = null ;
oCells = null;
System.GC.Collect();
Response.Write( " <script> alert( '生成Excel成功！请在路径 '+ ' "+ str + " '+ '下查询文件 '); </script> ");
[解决办法]
DataGrid内容导出标准的Excel格式文件
作者：Super
前言：
用传统的导出方法：只是将DataGrid信息用html输出，文件名后辍是.xls而已。如果想将这个方法导入到Sql Server 中，会提示出错。因为它不是标准的Excel格式文件。
用本例中的导出方法：会输出标准的Excel格式文件，非常稳定，不会死锁Excel进程，支持中文文件名，支持表头导出，支持大多数数据库导入。
实现算法：
利用Excel组件将DataGrid控件内容生成Excel临时文件，并存放在服务器上，并用Response方法将生成的Excel文件下载到客户端，再将生成的临时文件删除。
具体步骤：
1.在项目中引用Excel组件
Interop.Excel.dll 文件版本1.3.0.0
2.项目中应有一个目录（本例中Template目录），以便存放Excel文件（名字自己定）
3.导入方法类
以下是代码片段：
/// <summary>
/// 将DataGrid中数据导出至Excel，生成标准的Excel文件
/// </summary>
/// <param name= "grid "> DataGrid控件ID </param>
/// <param name= "fileName "> 导出文件名 </param>
protected void ExportToExcel(System.Web.UI.WebControls.DataGrid grid,string fileName)
{
string templetFilePath;
templetFilePath = Server.MapPath( "../ ").ToString() + @ "Template\ ";
object missing = Missing.Value;
Excel.Application app;
Excel.Workbook workBook;
Excel.Worksheet workSheet;
Excel.Range range;
//创建一个Application对象并使其不可见
app = new Excel.ApplicationClass();
app.Visible=false;
//打开模板文件，得到WorkBook对象
//workBook = app.Workbooks.Open(templetFilePath + "SuperTemplet.xls ", missing, missing, missing, missing, missing,
// missing, missing, missing, missing, missing, missing, missing);
//创建一个WorkBook对象
workBook = app.Workbooks.Add(missing);
//得到WorkSheet对象
workSheet = (Excel.Worksheet)workBook.Sheets.get_Item(1);
int rowCount = grid.Items.Count + 1; //DataTable行数+GirdHead
int colCount = grid.Columns.Count; //DataTable列数
//利用二维数组批量写入
string[,] arr = new string[rowCount, colCount];
for (int j = 0; j < rowCount; j++)
{
for (int k = 0; k < colCount; k++)
{
if (j == 0)
{
arr[j, k] = grid.Columns[k].HeaderText;
}
else
{
arr[j, k] = grid.Items[j - 1].Cells[k].Text.ToString();
}
}
}
range = (Excel.Range)workSheet.Cells[1, 1]; //写入Exel的坐标
range = range.get_Resize(rowCount, colCount);
range.Value = arr;
workBook.SaveAs(templetFilePath + fileName, missing, missing, missing, missing, missing,Excel.XlSaveAsAccessMode.xlExclusive, missing, missing, missing, missing);
if (workBook.Saved)
{
workBook.Close(null, null, null);
app.Workbooks.Close();
app.Quit();
}
if (range != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(range);
range = null;
}
if (workSheet != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(workSheet);
workSheet = null;
}
if (workBook != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(workBook);
workBook = null;
}
if (app != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(app);
app = null;
}
GC.Collect();//强制代码垃圾回收
//下载文件
DownLoadFile(templetFilePath,fileName);
}
4.下载文件方法类
以下是代码片段：
/// <summary>
/// 下载服务器文件到客户端
/// </summary>
/// <param name= "_FilePath "> 文件路径 </param>
/// <param name= "_FileName "> 文件名 </param>
/// <returns> 返回 bool型 </returns>
private bool DownLoadFile(string _FilePath,string _FileName)
{
try
{
System.IO.FileStream fs = System.IO.File.OpenRead(_FilePath+_FileName);
byte[] FileData = new byte[fs.Length];
fs.Read(FileData, 0, (int)fs.Length);
Response.Clear();
Response.AddHeader( "Content-Type ", "application/ms-excel ");
string FileName = System.Web.HttpUtility.UrlEncode(System.Text.Encoding.UTF8.GetBytes(_FileName));
Response.AddHeader( "Content-Disposition ", "inline;filename= " + System.Convert.ToChar(34) + FileName + System.Convert.ToChar(34));
Response.AddHeader( "Content-Length ", fs.Length.ToString());
Response.BinaryWrite(FileData);
fs.Close();
//删除服务器临时文件
System.IO.File.Delete(_FilePath+_FileName);
Response.Flush();
Response.End();
return true;
}
catch(Exception ex)
{
ex.Message.ToString();
return false;
}
}
5.应用方法
以下是代码片段：
protected void btnExportToExcel_Click(object sender, EventArgs e)
{
this.ExportToExcel(grdBudget, "中国石油大港油田油管厂发料记录.xls ");//grdBudget 是DataGrid的ID
}
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