protected void Button2_Click(object sender, EventArgs e) { string macongty = Session["congty"].ToString(); string maloaiphieu = DropDownLoaiPhieu.SelectedValue.ToString(); if (DropDownLoaiPhieu.SelectedValue.ToString() == " ") { if (DropDownLDonVi.SelectedValue.ToString() == " ") { GridView1.DataSource = db.LayDanhSachQuyTrinhXetDuyetCuaCanBo(macongty); GridView1.DataBind(); } else { if (DropDownLDonVi.SelectedValue.ToString().Trim() != "") { string madonvi = DropDownLDonVi.SelectedValue.ToString(); //GridView1.DataSource = QuyTrinhXetDuyetCuaCanBoDAO.LayDanhSachQuyTrinhTheoBoPhan(madonvi, macongty); GridView1.DataSource = db.LayQuyTrinhTheoDonViCanBo(madonvi, macongty); GridView1.DataBind(); } } } else { if (DropDownLDonVi.SelectedValue.ToString() == " ") { GridView1.DataSource = db.LayQuyTrinhTheoLoaiPhieuCanBo(maloaiphieu, macongty); GridView1.DataBind(); } else { string madonvi = DropDownLDonVi.SelectedValue.ToString(); GridView1.DataSource = db.LayQuyTrinhTheoDonViCanBoVaLoaiPhieu(madonvi, macongty, maloaiphieu); GridView1.DataBind(); } } }