private void btnRights_Click(object sender, EventArgs e)
 {
     FrmRights frm = new FrmRights();
     FrmMaterials objfrmMaterial = new FrmMaterials();
     frm.frmName = this.Name;
     frm.frmRightsControl = objfrmMaterial;
     frm.Show();
 }
 private void MaterailToolStripMenuItem_Click(object sender, EventArgs e)
 {
     bool Result = Common.CheckOpened("frmmaterials");
      if (Result == false)
      {
          FrmMaterials frm = new FrmMaterials();
          frm.strHeader = "MATERIALS";
          frm.Show();
      }
 }