如何保存自动生成gridview列的excel数据？

Question

我知道这可能是一个重复的问题，但我无法在任何地方找到它。

我从excel导入数据到gridview，但我如何将gridview数据保存到数据库中，并自动生成gridview中的列。 数据已经反映在gridview中，我如何将它保存在数据库中？

这将是更好，如果任何人都可以教我如何直接从Excel中插入到数据库中，而无需使用GridView控件作为介质（使用this尝试，但不停地告诉我，excel表不存在）。

代码绑定网格视图：

string conStr = ""; 
    switch (Extension) 
    { 
     case ".xls": //Excel 97-03 
      conStr = ConfigurationManager.ConnectionStrings["Excel03ConString"] 
        .ConnectionString; 
      break; 
     case ".xlsx": //Excel 07 
      conStr = ConfigurationManager.ConnectionStrings["Excel07ConString"] 
         .ConnectionString; 
      break; 
    } 
    conStr = String.Format(conStr, FilePath, isHDR); 
    OleDbConnection connExcel = new OleDbConnection(conStr); 
    OleDbCommand cmdExcel = new OleDbCommand(); 
    OleDbDataAdapter oda = new OleDbDataAdapter(); 
    DataTable dt = new DataTable(); 
    cmdExcel.Connection = connExcel; 

    //Get the name of First Sheet 
    connExcel.Open(); 
    DataTable dtExcelSchema; 
    dtExcelSchema = connExcel.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null); 
    string SheetName = dtExcelSchema.Rows[0]["TABLE_NAME"].ToString(); 


    connExcel.Close(); 

    //Read Data from First Sheet 
    connExcel.Open(); 
    cmdExcel.CommandText = "SELECT * From [" + SheetName + "]"; 
    oda.SelectCommand = cmdExcel; 
    oda.Fill(dt); 
    connExcel.Close(); 

    //Bind Data to GridView 

    GridView1.Caption = Path.GetFileName(FilePath); 
    GridView1.DataSource = dt; 
    GridView1.DataBind(); 

是我使用的代码aspsnippets。

Answer 1

我最近做了这个，但我只为它做了fileType Microsoft Office Excel Worksheet (.xlsx)。首先，您必须将excel文件复制到您的应用程序目录中，然后将数据保存到DataTable，最后将其绑定到Gridview。

使用这些命名空间

using System.Data; 
using System.Data.OleDb; 
using System.Data.SqlClient; 
using System.IO; 

这里是方法

private void Import_To_GridTest(string FilePath) 
     { 
      DataTable dt =new DataTable(); 

      try 
      { 
       string sSheetName = null; 
       string sConnection = null; 
       DataTable dtTablesList = default(DataTable); 
       OleDbDataAdapter oda = new OleDbDataAdapter(); 
       OleDbConnection oleExcelConnection = default(OleDbConnection); 
       sConnection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=\"Excel 12.0 Macro;HDR=YES;IMEX=1\""; 
       sConnection = String.Format(sConnection, FilePath); 
       oleExcelConnection = new OleDbConnection(sConnection); 
       oleExcelConnection.Open(); 
       dtTablesList = oleExcelConnection.GetSchema("Tables"); 
       if (dtTablesList.Rows.Count > 0) 
       { 
        sSheetName = dtTablesList.Rows[0]["TABLE_NAME"].ToString(); 
       } 
       dtTablesList.Clear(); 
       dtTablesList.Dispose(); 

       if (!string.IsNullOrEmpty(sSheetName)) 
       { 
        var oleExcelCommand = oleExcelConnection.CreateCommand(); 
        oleExcelCommand.CommandText = "Select * From [" + sSheetName + "]"; 
        oleExcelCommand.CommandType = CommandType.Text; 
        oda.SelectCommand = oleExcelCommand; 
        oda.Fill(dt); 
        oleExcelConnection.Close(); 
       } 

       oleExcelConnection.Close(); 

       gridview1.DataSource = dt; 
       gridview1.DataBind(); 



      } 

      catch (Exception e) 
      { 
       lblMsg.Text = "Unspecified Error Occured..!! <br>" + e.Message; 
       divMsg.Attributes["class"] = "alert alert-danger"; 
       mainDiv.Visible = true; 
       File.Delete(FilePath); 

      } 
     } 

最后提交按钮点击事件

protected void btnsubmit_OnClick(object sender, EventArgs e) 
     { 
      if (fileUpload1.HasFiles) 
      { 
       string FileName = Path.GetFileName(fileUpload1.PostedFile.FileName); 
       string FolderPath = "Excels/"; // your path 
       string FilePath = Server.MapPath(FolderPath + DateTime.Now.ToString("ddmmyyhhmmss") + FileName); 
       // copy and save the the excel 
       fileUpload1.SaveAs(FilePath); 
       Import_To_GridTest(FilePath); 
      } 
     } 

更新：对于数据保存到数据库使用SqlBulkCopy类

private void SqlbulkCopy(DataTable dt) 
     { 

      if (dt.Rows.Count > 0) 
      { 
       string consString = ConfigurationManager.ConnectionStrings["Bulkcopy"].ConnectionString; 
       using (SqlConnection con = new SqlConnection(consString)) 
       { 
        using (SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(con)) 
        { 
         //Set the database table name 
         sqlBulkCopy.DestinationTableName = "dbo.leads"; 

         //[OPTIONAL]: Map the DataTable columns with that of the database table 

         sqlBulkCopy.ColumnMappings.Add("Currunt_Company", "CuCompany"); 
         sqlBulkCopy.ColumnMappings.Add("Currunt_Product", "CuProduct"); 
         sqlBulkCopy.ColumnMappings.Add("Quantity", "Quantity"); 
         sqlBulkCopy.ColumnMappings.Add("Unit_Price", "UnitPrice"); 
         sqlBulkCopy.ColumnMappings.Add("Total_Price", "TotalPrice"); 
         sqlBulkCopy.ColumnMappings.Add("Contect_Person", "ContectPerson"); 

         con.Open(); 
         sqlBulkCopy.WriteToServer(dt); 
         con.Close(); 
        } 
       } 
      } 
     }