羅 朝淇的部落格

DataTable範例
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient; //新增命名空間 for SQL Server

namespace DataTable_ex
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //替代資料列樣式
            dataGridView1.RowsDefaultCellStyle.BackColor = Color.AliceBlue;
            dataGridView1.AlternatingRowsDefaultCellStyle.BackColor = Color.LightYellow;
        }

        private void btn_Load_Click(object sender, EventArgs e)
        {
            string ConnString;
            ConnString = "Data Source =127.0.0.1;Initial catalog = DiskRecord;" +
                             "User id = sa;Password = 123";

            string selectCmd = "select * from Title ";

            dataGridView1.DataSource = Create_DataTable(selectCmd, "Title", ConnString);
            dataGridView1.AutoResizeColumns();
        }

        public DataTable Create_DataTable(string SQLcmd, string TableName, string ConnString)
        {
            try
            {
                SqlConnection conn = new SqlConnection(ConnString);
                conn.Open();

                SqlDataAdapter da = new SqlDataAdapter(SQLcmd, conn);

                DataSet ds = new DataSet();
                da.Fill(ds, TableName);

                conn.Close();
                da.Dispose();

                //回傳DataTable
                return ds.Tables[TableName];
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                return null;
            }

        }
    }
}