public TabStudents()
{
InitializeComponent();
BusinessClass.CreateIfEx();
UpdateData(TableName);
PresentationLayerClass.NonSortableGrid(dataGridView1);
PresentationLayerClass.OnlyReadSwitch(panel1, 3, true);
PresentationLayerClass.EnableDisableButtons(new Button[] {
ButtonSelectGroupe, ButtonErace, ButtonEdit, ButtonSelectRoom, ButtonClear, ButtonOpen, ButtonSave
}, false);
}