private void UpdateBTN_Click(object sender, EventArgs e)
{
if (book == null)
{
MessageBox.Show("select a book");
}
else
{
bool Isopen = false;
foreach (Form f in Application.OpenForms)
{
if (f.Text == "Book_List")
{
Isopen = true;
f.BringToFront();
break;
}
}
if (Isopen == false)
{
Book_List bl = new Book_List(book, "update");
bl.Show();
}
}
}
private void Button_Click(object sender, EventArgs e)
{
Button button = sender as Button;
if (button.Name.Equals("newbook_Btn"))
{
bool Isopen = false;
foreach (Form f in Application.OpenForms)
{
if (f.Text == "Book_List")
{
Isopen = true;
f.BringToFront();
break;
}
}
if (Isopen == false)
{
Book_List bl = new Book_List();
bl.Show();
}
}
}
