dbAccessSP

DBAccess_SP

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Windows.Forms;

namespace ADO.SP
{
    partial class dbAccessSP
    {
        private string connS = "";
        public dbAccessSP()
        {
            connS = System.Configuration.ConfigurationManager.ConnectionStrings["Test"].ToString();
        }

        // PROPERTIES
        private string sp_name ="";
        public void SetName(string sp_name) {

            this.sp_name = sp_name;
        }

        private DataTable para_db = new DataTable();
        public void SP_Para(DataTable sp_para)
        {
            this.para_db = sp_para;
        }

        // UPDATE
        public bool UPDATE_SP() {

            string SPName = this.sp_name;
            DataTable dt = this.para_db;

            SqlConnection conn = new SqlConnection(connS);
            SqlCommand cmd = new SqlCommand(SPName, conn);

            cmd.CommandType = CommandType.StoredProcedure;

            for (int i = 0; i < dt.Rows.Count; i++)
            {
                cmd.Parameters.AddWithValue("@"+dt.Rows[i][0].ToString (), dt.Rows[i][1].ToString ());
            }

            try
            {
                conn.Open();
                cmd.ExecuteNonQuery();
                return true;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                return false;
            }
            finally {
                conn.Close();
                cmd.Dispose();
                conn.Dispose();
            }
        }

        // SELECT

        //SELECT FROM READER
        public DataTable SELECT_SP()
        {

            string SPName = this.sp_name;
            SqlConnection conn = new SqlConnection(connS);
            SqlCommand cmd = new SqlCommand(SPName, conn);
            DataTable dt = this.para_db;
            SqlDataReader rd = null;

            cmd.CommandType = CommandType.StoredProcedure;

            for (int i = 0; i < dt.Rows.Count; i++)
            {
                cmd.Parameters.AddWithValue("@" + dt.Rows[i][0].ToString(), dt.Rows[i][1].ToString());
            }

            try
            {
                conn.Open();
                rd = cmd.ExecuteReader();
                dt = GetReaderTable(rd.GetSchemaTable());
                object[] array = new object[dt.Columns.Count];

                while (rd.Read())
                {
                    for (int i = 0; i < dt.Columns.Count; i++)
                    {
                        array[i] = rd.GetValue(i);
                    }

                    dt.Rows.Add(array);

                }

                return dt;

            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                return null;
            }
            finally
            {

                conn.Close();
                rd.Dispose();
                conn.Dispose();
                dt.Dispose();
                cmd.Dispose();
            }
        }

        private DataTable GetReaderTable(DataTable pdt)
        {

            DataTable dt = new DataTable("info");

            for (int i = 0; i < pdt.Rows.Count; i++)
            {
                dt.Columns.Add(pdt.Rows[i][0].ToString());
            }

            return dt;
        }

        public DataTable ParaHolder() {

            DataTable dt = new DataTable();
            dt.Columns.Add("para");
            dt.Columns.Add("values");
            return dt;
        }
    }

}

------------------------------------------------------------

Caller

dbAccessSP objdb = new dbAccessSP();

        private void button1_Click(object sender, EventArgs e)

        {

            objdb.SetName("SPInsertStudent");

            DataTable para = objdb.ParaHolder();

            para.Rows.Add("name",txtName.Text);

            para.Rows.Add("address",txtAddress.Text);

            para.Rows.Add("tp",txtTP.Text);

            para.Rows.Add("dob",dateTimePicker1.Value.ToShortDateString());

            objdb.SP_Para(para);

            if (objdb.UPDATE_SP()) {

                loadINFo();

                MessageBox.Show("success");

            }

            else

            {

                MessageBox.Show("not success5");

            }

        }

        private void UpdateStudents_Load(object sender, EventArgs e)

        {

            loadINFo();

        }

        public void loadINFo() {

       

            objdb.SetName("SPSelectStudents");

            DataTable para = objdb.ParaHolder();

            objdb.SP_Para(para);

            dataGridView1.DataSource =  objdb.SELECT_SP();

        }