private void MassDelToolStripMenuItem2_Click(object sender, EventArgs e)
{
foreach (TreeNode treeNode in CheckedNodes(StudentCardsTreeView.Nodes))
{
var currentStudent = SearchStudentInStudentList(treeNode);
_manager.DeleteData(currentStudent);
}
DeleteTextBoxInfo();
RefreshInfo();
MessageBox.Show($"Данные удалены");
}
private void DeleteButton_Click(object sender, EventArgs e)
{
if (StudentCardsTreeView.SelectedNode != null && StudentCardsTreeView.SelectedNode.Name != "")
{
var currentStudent = SearchStudentInStudentList();
_manager.DeleteData(currentStudent);
MessageBox.Show($"Данные {currentStudent.Surname} удалены");
DeleteTextBoxInfo();
RefreshInfo();
}
}