private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (button2.Enabled)
{
int result = LibraryManager.close();
}
}
private void button2_Click(object sender, EventArgs e)
{
int result = LibraryManager.close();
textBox2.Text = result.ToString();
if (result > 0)
{
button1.Enabled = true;
button2.Enabled = false;
groupBox1.Enabled = false;
button3.Enabled = false;
button4.Enabled = true;
}
}