private void btn_Add_Click(object sender, EventArgs e)
{
ViewEvent_Form add = new ViewEvent_Form("add");
add.ShowDialog();
ShowAll();
ButtonEnabler();
}
private void btn_Update_Click(object sender, EventArgs e)
{
ViewEvent_Form edit = new ViewEvent_Form("edit", EventGridView.SelectedRows[0].Cells[0].Value.ToString());
edit.ShowDialog();
ShowAll();
}