datatable + gridveiw 便捷用法实例

namespace WindowsFormsApplication9
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            dataGridView1.AutoGenerateColumns = false;
            //dataGridView1.DataSource = new FruitDA().Select();
            this.bindingSource1.DataSource = new FruitDA().Select();
            dataGridView1.DataSource = this.bindingSource1;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //MessageBox.Show( dataGridView1.SelectedCells[0].Value.ToString());
            MessageBox.Show(dataGridView1.SelectedColumns[0].HeaderText);
           // MessageBox.Show(dataGridView1.SelectedRows[0].Cells[0].ToString());

        }
    }
}

　　

namespace WindowsFormsApplication9
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void Form2_Load(object sender, EventArgs e)
        {
            dataGridView1.AutoGenerateColumns = false;
            dataGridView1.DataSource = new FruitDA().SelectDt();
        }
    }
}

　　

namespace WindowsFormsApplication9
{
    public partial class Form3 : Form
    {
        public Form3()
        {
            InitializeComponent();
        }

        private void Form3_Load(object sender, EventArgs e)
        {
            dataGridView1.DataSource = new Nation().getData();
        }
    }
}