private void main_Load(object sender, EventArgs e) { controlContainer.Controls.Clear(); add a = new add(); controlContainer.Controls.Add(a); }
private void btn_Click(object sender, EventArgs e) { Button btn = (Button)sender; panelActive.Height = btn.Height; panelActive.Top = btn.Top; controlContainer.Controls.Clear(); UserControl ctr = null; if (btn == btnAdd) { ctr = new add(); } else if (btn == btnSum) { ctr = new summary(); } controlContainer.Controls.Add(ctr); }