private void BindGridView()
{
dt = LibFenlei.GetFenlei_dt("types='" + types + "'");
gvqy.DataSource = LibFenlei.GetFenlei("types='" + types + "'");
gvqy.DataBind();
this.ddl_cate.SetDataSource(dt);
this.ddl_cate.Items.Insert(0, "-请选择-");
LibCache.remove(LibCache.tc_fenlei);
}