无法findpath的Excel错误的一部分

我想绑定一个数据表excel 。 我已经写了下面的代码

 public void ExportExcel() { string str_lwpc_query = string.Empty; str_lwpc_query = "select company_name 'COMPANY NAME',Deputed_Company_Name 'DEPUTED COMPANY NAME',emp_card_no 'EMP CODE',emp_name 'EMPLOYEE NAME',LWP,'' Remarks, " + "Adj_Days Gain_Loss_LOP_Days, VAL_DAY LOP_Days_Desc, month, year from XXACL_EMP_INFO_LWP_OTDAYS_HRS_V " + "where emp_type='C' and month = '3' and year = '2015'"; DataTable Dt_lwpc = new DataTable(); //DT_Overdue.TableName = "Daily Lead"; Dt_lwpc = CF.ExecuteDT(str_lwpc_query); DataSet DS_lwpc = new DataSet(); DS_lwpc.Tables.Add(Dt_lwpc); DS_lwpc.Tables[0].TableName = "Employee loss of pay for consultant Details"; ExcelLibrary.DataSetHelper.CreateWorkbook("~/Attachment/Employee_lwpc_Details.xls", DS_lwpc); } 

但我得到错误

找不到path“C：\ Program Files（x86）\ Common Files \ Microsoft Shared \ DevServer \ 10.0 \〜\ Attachment \ Employee_lwpc_Details.xls”的一部分。

在最后一行。 我不知道为什么

Answer 1

用户Server.MapPath并获取相对于您的网站运行的目录。

 var directory = Server.MapPath("~/Attachment/"); ExcelLibrary.DataSetHelper.CreateWorkbook(directory + "Employee_lwpc_Details.xls", DS_lwpc); 

这假设附件目录存在，否则您可能需要创build它。