private void barBtnQLSach_ItemClick(object sender, ItemClickEventArgs e)
{
panelCha.Controls.Clear();
ucFrmQLSach frm = new ucFrmQLSach();
frm.Dock = System.Windows.Forms.DockStyle.Fill;
panelCha.Controls.Add(frm);
}
private void nBI_QLS_LinkClicked(object sender, DevExpress.XtraNavBar.NavBarLinkEventArgs e)
{
panelCha.Controls.Clear();
ucFrmQLSach frm = new ucFrmQLSach();
frm.Dock = System.Windows.Forms.DockStyle.Fill;
panelCha.Controls.Add(frm);
}