private void FormMain_Load(object sender, EventArgs e) { ucTrangChu a = new ucTrangChu(); a.Dock = DockStyle.Fill; groupBox1.Controls.Add(a); foreach (Control ctrl in groupBox1.Controls) { if (ctrl != a) { ctrl.Dispose(); } } }
private void trangChủToolStripMenuItem_Click(object sender, EventArgs e) { ucTrangChu a = new ucTrangChu(); a.Dock = DockStyle.Fill; groupBox1.Controls.Add(a); foreach (Control ctrl in groupBox1.Controls) { if (ctrl != a) { ctrl.Dispose(); } } }