private void btnUpdate_Click(object sender, EventArgs e)
{
if (!String.IsNullOrEmpty(txtID.Text))
{
try
{
UpdateBook form = new UpdateBook(int.Parse(txtID.Text));
form.ShowDialog();
}
catch (Exception)
{
MessageBox.Show("Please Enter correct ISBN");
}
}
else
{
MessageBox.Show("Please choose a Book!!!");
}
}
private void dgvBook_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
UpdateBook form = new UpdateBook(int.Parse(txtID.Text));
form.ShowDialog();
}