private void btnNew_Click(object sender, EventArgs e)
{
SizeNew sn = new SizeNew(0);
sn.ShowDialog();
mainsql();
}
private void btnupdate_Click(object sender, EventArgs e)
{
SizeNew sn = new SizeNew(Convert.ToInt32(SizeDGV[2, SizeDGV.CurrentCell.RowIndex].Value.ToString()));
sn.ShowDialog();
//SizeDGV.Rows[e.RowIndex].Cells[0].Value.ToString();
//SizeDGV.Rows[rowindex].Cells["id"].Value.ToString();
//SizeDGV
//dt.DefaultView[currow]["编号"].ToString());
}