SqlDataAdapter simple (C#)

// put a dataGridView1 control on your form
// and don't forget to insert your SQL Connection string and SQL query into the code

using System;
using System.Data;
using System.Data.SqlClient;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            try
            {
                // Render data onto the screen
                dataGridView1.DataSource =  FillData("<Your SQL Connection String here>", "<Your SQL Query here>");
            }
            catch (Exception)
            {
            }
        }

        DataTable FillData(string strConnection, string SQLQuery)
        {
            DataTable dt = new DataTable();
            // Open connection
            using (SqlConnection conn = new SqlConnection(strConnection))
            {
                conn.Open();
                SqlCommand cmd = new SqlCommand(SQLQuery);
                // Create new DataAdapter
                using (SqlDataAdapter a = new SqlDataAdapter(cmd.CommandText, conn))
                {
                    // Use DataAdapter to fill DataTable
                    try
                    {
                        // fill the DataTable
                        a.Fill(dt);
                    }
                    catch (Exception)
                    {
                    }
                }
            }
            // return the DataTable
            return dt;
        }
    }
}