菜鸟求教，C# 读取excel文件的问题，

Question

本帖最后由 wz654273122 于 2013-03-14 10:41:10 编辑

Answer 1

 /// <summary>
    /// 确定
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnFileUp_Click(object sender, EventArgs e)
    {
        string xlsName = "";
        try
        {
            //InputDataBLL input = new InputDataBLL();           
            if (this.FileUpload1.HasFile)
            {
                string IsXls = System.IO.Path.GetExtension(FileUpload1.FileName).ToString().ToLower();
                
                if (IsXls != ".xls")
                {
                    MessageBox.Show("本程序只能识别excel文件！",this);
                    return;
                }
                xlsName =  DateTime.Now.ToString("yyyy-MM-dd-hh-mm-ss")+System.IO.Path.GetFileName(FileUpload1.FileName) ;                // string filename = this.FileUpload1.PostedFile.FileName.ToString().Trim();                DataTable dt = new DataTable();
                int len = this.FileUpload1.FileName.ToString().Trim().Length;                string path = Server.MapPath("../UpLoad/") + xlsName;
                this.FileUpload1.SaveAs(path); //上传文件                //将上传的Excel文件数据读取出来
                dt = this.InputExcel(xlsName, this.FileUpload1.FileName.ToString().Trim().Substring(0, len - 4), "");
                
                //if (Session["inputdt"] != null)
                //    Session.Remove("inputdt");
                //Session.Add("inputdt", inputdt);
                
                if (dt.Rows.Count > 0)
                {
                    this.GridView1.DataSource = dt;
                    this.GridView1.DataBind();
                }
            }
            else
                throw new Exception("请选择导入表的路径");
        }
        catch (Exception ex)
        {
            Response.Write("<script language='javascript'>alert('" + ex.Message + "');</script>");
        }
    }
    /// <summary>
    /// 导入数据到数据集中
    /// </summary>
    /// <param name="Path"></param>
    /// <param name="TableName"></param>
    /// <param name="tablename2">如果这个有就以他为表名，没有的话就以TableName</param>
    /// <returns></returns>
    public DataTable InputExcel(string xlsName, string TableName, string tablename2)
    {
        try
        {
            //获取到上传的Excel
            string ThePath = Server.MapPath("../") + "UpLoad\\" + xlsName;
            
            string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + ThePath + ";" + "Extended Properties=Excel 8.0;";
            
            OleDbConnection conn = new OleDbConnection(strConn);
            conn.Open();
            
            string strExcel = "";
            
            OleDbDataAdapter myCommand = null;            if (tablename2.Length > 0 && !tablename2.Equals(string.Empty))
            {
                TableName = tablename2;
            }
                            strExcel = "select * from [" + TableName + "$]";            myCommand = new OleDbDataAdapter(strExcel, strConn);
            DataTable dt = new DataTable();
            myCommand.Fill(dt);            conn.Close();
            return dt;        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);
        }
    }友情提示，win2003 x64 版IIS不支持 Jet.OLEDB.4.0;