C# การดึง Database จาก DataGridView มาลงใน TextBox แบบบ้าน ๆ

public partial class Form4 : Form
    {
        public Form4()
        {
            InitializeComponent();
        }

        private void sett_Post_ProvinceBindingNavigatorSaveItem_Click(object sender, EventArgs e)
        {
            this.Validate();
            this.sett_Post_ProvinceBindingSource.EndEdit();
            this.tableAdapterManager.UpdateAll(this.postCodeDataSet);

        }

        private void Form4_Load(object sender, EventArgs e)
        {
            // TODO: This line of code loads data into the 'postCodeDataSet.Sett_Post_Province' table. You can move, or remove it, as needed.
            this.sett_Post_ProvinceTableAdapter.Fill(this.postCodeDataSet.Sett_Post_Province);

        }
    }

this.pvnIDTextBox.DataBindings.Add(new System.Windows.Forms.Binding("Text", this.sett_Post_ProvinceBindingSource, "pvnID", true));

//Update 
this.Validate();
this.ชื่อ BindingSource.EndEdit();
this.tableAdapterManager.UpdateAll(this.postCodeDataSet);

public partial class Form4 : Form
    {
        public Form4()
        {
            InitializeComponent();
        }
        private void Form4_Load(object sender, EventArgs e)
        {
            // TODO: This line of code loads data into the 'postCodeDataSet.Sett_Post_PostCode' table. You can move, or remove it, as needed.
            this.sett_Post_PostCodeTableAdapter.Fill(this.postCodeDataSet.Sett_Post_PostCode);
            // TODO: This line of code loads data into the 'postCodeDataSet.Sett_Post_PostOffice' table. You can move, or remove it, as needed.
            this.sett_Post_PostOfficeTableAdapter.Fill(this.postCodeDataSet.Sett_Post_PostOffice);
            // TODO: This line of code loads data into the 'postCodeDataSet.Sett_Post_Amphur' table. You can move, or remove it, as needed.
            this.sett_Post_AmphurTableAdapter.Fill(this.postCodeDataSet.Sett_Post_Amphur);
            // TODO: This line of code loads data into the 'postCodeDataSet.DataTable1' table. You can move, or remove it, as needed.
            this.dataTable1TableAdapter.Fill(this.postCodeDataSet.DataTable1);
            // TODO: This line of code loads data into the 'postCodeDataSet.Sett_Post_Province' table. You can move, or remove it, as needed.
            this.sett_Post_ProvinceTableAdapter.Fill(this.postCodeDataSet.Sett_Post_Province);

        }
#region _SaveData
        private void toolStripButton7_Click(object sender, EventArgs e)
        {
            //Update PostCode
            this.Validate();
            this.sett_Post_PostCodeBindingSource.EndEdit();
            this.tableAdapterManager.UpdateAll(this.postCodeDataSet);
            this.sett_Post_PostCodeTableAdapter.Fill(this.postCodeDataSet.Sett_Post_PostCode);
        }

        private void toolStripButton14_Click(object sender, EventArgs e)
        {
            //Update PostCode
            this.Validate();
            this.sett_Post_ProvinceBindingSource.EndEdit();
            this.tableAdapterManager.UpdateAll(this.postCodeDataSet);
            this.sett_Post_ProvinceTableAdapter.Fill(this.postCodeDataSet.Sett_Post_Province);
        }
        private void toolStripButton21_Click(object sender, EventArgs e)
        {
            //Update Amphur
            this.Validate();
            this.sett_Post_AmphurBindingSource.EndEdit();
            this.tableAdapterManager.UpdateAll(this.postCodeDataSet);
            this.sett_Post_AmphurTableAdapter.Fill(this.postCodeDataSet.Sett_Post_Amphur);
        }
        private void toolStripButton28_Click(object sender, EventArgs e)
        {
            //Update PostOffice
            this.Validate();
            this.sett_Post_PostOfficeBindingSource.EndEdit();
            this.tableAdapterManager.UpdateAll(this.postCodeDataSet);
            this.sett_Post_PostOfficeTableAdapter.Fill(this.postCodeDataSet.Sett_Post_PostOffice);
        }
#endregion
    }