private void Button_add_Click(object sender, EventArgs e)
{
if (textBox_permission_level.Text.Trim().Equals(""))
{
MessageBox.Show("Please do not leave the textbox empty.");
return;
}
if (controller.HasPermission(Int32.Parse(textBox_permission_level.Text)))
{
MessageBox.Show("Permission " + textBox_permission_level.Text + " already exists.");
return;
}
controller.AddPermission(Int32.Parse(textBox_permission_level.Text));
PermissionAdded();
}
