namespace
UpdateDataWindowsFormDataGridView
{
    public partial class Form1 : Form
    {
        private SqlDataAdapter da;
        private DataTable dt;
 
        public Form1()
        {
            InitializeComponent();
 
            // Configure display
characteristics of the data grid view
            dataGridView.Anchor =
AnchorStyles.Left | AnchorStyles.Right |
                AnchorStyles.Top |
AnchorStyles.Bottom;
            this.Width = 500;
 
            this.Load += new
EventHandler(Form1_Load);
        }
 
        void Form1_Load(object sender,
EventArgs e)
        {
            // Set the data source of the data
grid view
            dataGridView.DataSource =
LoadData();
        }
 
        private DataTable LoadData()
        {
            string sqlConnectString = @"my
connetion";
 
            string sqlSelect = "SELECT Id,
IntField, StringField FROM DataGridView";
 
            // Create a data adapter and
command builder
            da = new SqlDataAdapter(sqlSelect,
sqlConnectString);
            SqlCommandBuilder cb = new
SqlCommandBuilder(da);
            // Load a DataTable with schema and
data from table DataGridView
            dt = new DataTable();
            da.FillSchema(dt,
SchemaType.Source);
            da.Fill(dt);
 
            return dt;
        }
 
        private void saveButton_Click(object
sender, EventArgs e)
        {
            
            da.Update(dt);
            MessageBox.Show("Changes
saved.", "DataGridView",
                MessageBoxButtons.OK,
MessageBoxIcon.Information);
        }
    }
}
 
 
This
is not my code but I just did exactly like this but on a extra note I have
added a button which selects the value in the gridview…nw I want a button for
just updating the gridview… wen I use this code the database remains unchanged(nothing
happens)…. For the second button I have added the SQL dataadaptor and datatable
publically hw t is in the prog but with a different object instance(name)..
 
This
code is workin if I create a dummy form with just one gridview and a button,
but not wen 2 buttons (one for select and 1 for update ).. is there any other
way to do this..