web BAsed Management

string dsource = @"C:\Users\Comma\Desktop\Working ON\WebBasedData\WebBasedData\Data\Attachments_20131219";

//Put your datasource path in the connection string for example if you have csv files in D:\ directory change datasource= D:\
string constr = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + dsource + ";Extended Properties='text;HDR=Yes;FMT=Delimited';";

            try
            {
                txtFromDate1.Text = Convert.ToString("MMDDYY");
                txtToDate1.Text = Convert.ToString("MMDDYY");
                string fromdate = txtFromDate1.Text;
                string todate = txtToDate1.Text;
                string fromtime = DropDownList2.SelectedItem.Text;
                string totime = DropDownList3.SelectedItem.Text;


                con.ConnectionString = constr;

                //create instance for command object 
                OleDbCommand cmd = new OleDbCommand();
               

                cmd.Connection = con;   
                // set your file name in the below query
                cmd.CommandText = "select * from [fpyield && fromdate && fromtime ]" ;
                
  
                //Open Oledb Connection to read CSV file 
                con.Open();

                //Create one datatable to store data from CSV file
                DataTable dt = new DataTable();

                // Load Data into the datatable 
                dt.Load(cmd.ExecuteReader());
           
                //Bind data in the Gridview
                GridViewShow.DataSource = dt;
                GridViewShow.DataBind();