1.首先上传Excel 文件，和普通上传方法一样.
2.导入Excel 里面的数据：
1 private bool ImportExcel() 2 { 3 bool bResult = true; 4 string filepath = ""; 5 string path = HttpContext.Current.Request.MapPath("~/UploadFiles/"); 6 try 7 { 8 DirectoryInfo di = new DirectoryInfo(path); 9 FileInfo[] fis = di.GetFiles(); 10 if (fis.Length <= 0) 11 { 12 lblMessage.Text = "no avalible file ，please upload it firstly!"; 13 return false; 14 } 15 Array.Sort(fis, new SortFile(SortOption.CreationTime)); 16 filepath = Path.Combine(path, fis[0].ToString()); 17 //filepath = @"D:\tt.xls";//test 18 DataSet ds = ExcelDataSource(filepath, ExcelSheetName(filepath)[0].ToString()); 19 dt = ds.Tables[0]; 20 dt.Columns.Add("Status"); 21 AllocationManager am = new AllocationManager(); 22 am.AddAllocation(dt, this.LoginName); 23 24 } 25 catch (Exception ex) 26 { 27 bResult = false; 28 lblMessage.Text += ex.Message; 29 } 30 return bResult; 31 }
得到存数据的Excelsheft name:
1 public ArrayList ExcelSheetName(string filepath) 2 { 3 ArrayList al = new ArrayList(); 4 string strConn; 5 strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties=\"Excel 12.0;HDR=YES;IMEX=1\""; 6 7 OleDbConnection conn = new OleDbConnection(strConn); 8 conn.Open(); 9 DataTable sheetNames = conn.GetOleDbSchemaTable 10 (System.Data.OleDb.OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" }); 11 conn.Close(); 12 foreach (DataRow dr in sheetNames.Rows) 13 { 14 al.Add(dr[2]); 15 } 16 return al; 17 }
从此sheft 里面取出用户数据：
1 public DataSet ExcelDataSource(string filepath, string sheetname) 2 3 { 4 5 string strConn; 6 7 strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties='Excel 12.0;HDR=YES;IMEX=1'"; 8 9 OleDbConnection conn = new OleDbConnection(strConn); 10 11 OleDbDataAdapter oada = new OleDbDataAdapter("select * from [" + sheetname + "]", strConn); 12 13 DataSet ds = new DataSet(); 14 oada.Fill(ds); 15 conn.Close(); 16 17 return ds; 18 19 }
取上传文件中取最新文件时需要用到的操作帮助类：
View Code
1 public enum SortOption 2 { 3 FileName, 4 Extension, 5 CreationTime 6 } 7 8 public enum OrderOption 9 { 10 UP = 1, 11 Down = -1 12 } 13 实现文件Comparer; 14 public class SortFile : IComparer 15 { 16 SortOption mso; 17 OrderOption odo; 18 public SortFile(SortOption so) 19 { 20 mso = so; 21 odo = OrderOption.Down; 22 } 23 public SortFile(SortOption so, OrderOption oo) 24 { 25 mso = so; 26 odo = oo; 27 } 28 29 int IComparer.Compare(object a, object b) 30 { 31 try 32 { 33 FileInfo fa = (FileInfo)a; 34 FileInfo fb = (FileInfo)b; 35 36 switch (mso) 37 { 38 case SortOption.FileName: 39 return ((int)odo) * String.Compare(fa.Name, fb.Name, true); 40 //break; 41 case SortOption.Extension: 42 return ((int)odo) * String.Compare(Path.GetExtension(fa.Name), Path.GetExtension(fb.Name), true); 43 //break; 44 case SortOption.CreationTime: 45 return ((int)odo) * DateTime.Compare(fa.CreationTime, fb.CreationTime); 46 //break; 47 default: 48 break; 49 } 50 } 51 catch { } 52 return 0; 53 } 54 }