C#.NET中若何批量拔出年夜量數據到數據庫中

C#.NET中若何批量拔出年夜量數據到數據庫中。本站提示廣大學習愛好者：（C#.NET中若何批量拔出年夜量數據到數據庫中）文章只能為提供參考，不一定能成為您想要的結果。以下是C#.NET中若何批量拔出年夜量數據到數據庫中正文

在WEB項目開辟進程中有時會碰著批量拔出數據到數或許是將EXCEL文件據入到數據庫中.為了便利完成可以先將EXCEL導入到GRIDVIEW中然後一次批量拔出.完成代碼以下:

前台代碼

<asp:GridView ID="dgBom" runat="server" AutoGenerateColumns="false" CellPadding="1" CellSpacing="2">
<HeaderStyle BackColor="#ededed" />
  <Columns>
   <asp:TemplateField HeaderText="學號">
    <ItemTemplate>
     <asp:TextBox ID="studentnumber" runat="server" Text='<%#Eval("studentnumber") %>' ></asp:TextBox>
    </ItemTemplate>
   </asp:TemplateField>
   <asp:TemplateField HeaderText="先生姓名">
    <ItemTemplate>
     <asp:TextBox ID="studentname" runat="server" Text='<%#Eval("studentname") %>'></asp:TextBox>
    </ItemTemplate>
   </asp:TemplateField>
  </Columns>
</asp:GridView>
  <asp:FileUpload ID="FileUpload1" runat="server" Font-Italic="False" />
  <asp:Button ID="btn2" runat="server" OnClick="btn2_Click" Text="導入數據" />
  <asp:Button ID="btninsert" runat="server" OnClick="btninsert_Click" Text="拔出到數據庫中"/>

後台代碼:

//起首在定名空間中參加以下兩行
using System.Data.SqlClient;
using System.Data.OleDb;
protected void btn2_Click(object sender, EventArgs e)
  {
    string filepath = FileUpload1.PostedFile.FileName;
    ReadExcel(filepath, dgBom);
  }
  public void ReadExcel(string sExcelFile, GridView dgBom)
  {
    DataTable ExcelTable;
    DataSet ds = new DataSet();
    //Excel的銜接
    OleDbConnection objConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + sExcelFile + ";" + "Extended Properties=Excel 8.0;");
    objConn.Open();
    DataTable schemaTable = objConn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);
    string tableName = schemaTable.Rows[0][2].ToString().Trim();//獲得 Excel 的表名，默許值是sheet1
    string strSql = "select * from [" + tableName + "]";
    OleDbCommand objCmd = new OleDbCommand(strSql, objConn);
    OleDbDataAdapter myData = new OleDbDataAdapter(strSql, objConn);
    myData.Fill(ds, tableName);//填湊數據
    dgBom.DataSource =ds;
    dgBom.DataBind();
    objConn.Close();
    ExcelTable = ds.Tables[tableName];
    int iColums = ExcelTable.Columns.Count;//列數
    int iRows = ExcelTable.Rows.Count;//行數
    //界說二維數組存儲 Excel 表中讀取的數據
    string[,] storedata = new string[iRows, iColums];
    for(int i=0;i<ExcelTable.Rows.Count;i++)
      for (int j = 0; j < ExcelTable.Columns.Count; j++)
      {
        //將Excel表中的數據存儲到數組
        storedata[i, j] = ExcelTable.Rows[i][j].ToString();
      }
    int excelBom = 0;//記載表中有效信息的行數，有效信息是指除去表的題目和表的欄目，本例中表的用用信息是從第三行開端
    //肯定有效的行數
    for (int k = 2; k < ExcelTable.Rows.Count; k++)
      if (storedata[k, 1] != "")
        excelBom++;
    if (excelBom == 0)
    {
      Response.Write("<script language=javascript>alert('您導入的表格不及格式！')</script>");
    }
    else
    {
      //LoadDataToDataBase(storedata，excelBom)//該函數重要擔任將 storedata 中有效的數據寫入到數據庫中，在此不是成績的症結省略 
    }
  }
  protected void btninsert_Click(object sender, EventArgs e)
  {
    foreach (GridViewRow gv in dgBom.Rows) 
    {
      //我的銜接字符串是寫在WEB.CONFIG中的.
      string con = System.Configuration.ConfigurationManager.AppSettings["ConnectionString1"].ToString();
      SqlConnection conn = new SqlConnection(con);
      SqlCommand cmd = conn.CreateCommand();
      cmd.CommandType = CommandType.Text;
      cmd.CommandText = "insert into student (studentnumber,studentname) values(@studentnumber,@studentname)";
      cmd.Parameters.Add("@studentnumber", SqlDbType.NVarChar, 20);
      cmd.Parameters.Add("@studentname", SqlDbType.NVarChar, 10);
      cmd.Parameters["@studentname"].Value = ((TextBox)gv.FindControl("studentname")).Text;
      cmd.Parameters["@studentnumber"].Value = ((TextBox)gv.FindControl("studentnumber")).Text;
      try
      {
        conn.Open();
        cmd.ExecuteNonQuery();
        conn.Close();
      }
      finally
      {
        if (conn != null)
          conn.Dispose();
      }
    }
  }

以上內容就是本文的全體論述，願望對年夜家進修C#.NET中若何批量拔出年夜量數據到數據庫中有所贊助。