Question

When page is load than datagridview will be bind from database.

I need row enter event for selecting row and based on retriving data from database.

But at load time it should not happen. How can I do this ?

This is my code

private void dgStation_RowEnter(object sender, DataGridViewCellEventArgs e)
{
    dgStation.Rows[e.RowIndex].Selected = true;
    int id = Convert.ToInt32(dgStation.Rows[e.RowIndex].Cells[1].Value.ToString());
}

Answer 1

You can attach the wire handler after the form is loaded, something like this:

protected override void OnShown(EventArgs e) {
  base.OnShown(e);
  dgStation.RowEnter += dgStation_RowEnter;
}

Make sure to remove the current RowEnter handler from the designer file.

Or just use a loading flag:

private bool loading = true;

protected override void OnShown(EventArgs e) {
  base.OnShown(e);
  loading = false;
}

private void dgStation_RowEnter(object sender, DataGridViewCellEventArgs e) {
  if (!loading) {
    dgStation.Rows[e.RowIndex].Selected = true;
    int id = Convert.ToInt32(dgStation.Rows[e.RowIndex].Cells[1].Value.ToString());
  }
}