void LoadData()
{
//student load and display
Student_Model s1 = new Student_Model();
s1.GetAll();
grdStudent.DataSource = s1.Table;
grdStudent.Refresh();
//Parent load and display
Parent_Model p1 = new Parent_Model();
p1.GetAll();
grdParent.DataSource = p1.Table;
grdParent.Refresh();
//Menu load and display
Menu_Model m1 = new Menu_Model();
m1.GetAll();
grdMenu.DataSource = m1.Table;
grdMenu.Refresh();
}
