private void editButton_Click(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows.Count != 0)
{
this.Enabled = false;
RegForm reg = new RegForm();
reg.IsEditMode = true;
reg.UserID = (int)dataGridView1.SelectedRows[0].Cells["ID_Employee"].Value;
reg.FillFieldsWithData(dataGridView1.SelectedRows[0]);
reg.Show(this);
}
}