private void button8_Click(object sender, EventArgs e)
{
groupBox2.Visible = true;
groupBox1.Visible = false;
groupBox4.Visible = false;
groupBox5.Visible = false;
groupBox3.Visible = false;
sorgu = "SELECT [UsLocation],[UsAge],[UseId],[UsName] ,[UsPass] FROM Users";
table = listele.DbListele(sorgu);
dataGridView1.DataSource = table;;
}
private void button7_Click(object sender, EventArgs e)
{
listele = new Listele();
//kitap listele
groupBox3.Visible = true;
groupBox2.Visible = true;
groupBox1.Visible = false;
groupBox4.Visible = false;
groupBox5.Visible = false;
sorgu = "SELECT [ISBN],[BookTitle],[BookAuthor],[YearOfPublication],[Publisher] ,[ImageURLM] FROM Books";
table = listele.DbListele(sorgu);
dataGridView1.DataSource = table;;
}