今天想 做了一下 gridview 在没有数据的情况下 也能显示表头呢 虽然 没有封装 还是面向过程的 不过 还是做出来了

 protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
      
           

            Bind();
           

        }
    }
    public void Bind()
    {


        string sqlstr = "select [Thesis].Lwid,[Issue].Kttm,[Thesis].LNd,[Thesis].Sci,[Thesis].lwtitle,[Periodical_Type].qklx,[Periodical].Qkmc,[Thesis_Author].Zzxm,[Issue_Groups].Zbmc from [Issue_Thesis_Relation],[Issue],[Thesis],[Thesis_Author],[Thesis_Author_Relation],[Issue_Groups],[Periodical],[Periodical_Type]  where [Issue_Groups].Zid = [Issue].Zid and [Issue_Thesis_Relation].Ktid =[Issue].Ktid and [Issue_Thesis_Relation].Lwid = [Thesis].Lwid and [Periodical].lid = [Periodical_Type].lid and [Thesis].qkid = [Periodical].qkid and [Thesis_Author_Relation].Lwid = [Thesis].Lwid and [Thesis_Author_Relation].Zzid = [Thesis_Author].Zzid";
        DataSet myds = new DataSet();
        myds = SQLHelper.GetDataSet(sqlstr);

        int Sqlcount = myds.Tables[0].Rows.Count;//总记录数
        this.AspNetPager1.RecordCount = Sqlcount;
        AspNetPager1.AlwaysShow = true;
        int pageSize = this.AspNetPager1.PageSize = 10;//每页记录数
        int startIndex = (this.AspNetPager1.CurrentPageIndex - 1) * pageSize + 1;//每页最开始索引
        int startindex1 = startIndex + 10;
        string sqlstr1 = "select * from(select ROW_NUMBER() over(order by [Thesis].CreateTime desc) row,[Thesis].Lwid,[Issue].Kttm,[Thesis].LNd,[Thesis].Sci,[Thesis].lwtitle,[Periodical_Type].qklx,[Periodical].Qkmc,[Thesis_Author].Zzxm,[Issue_Groups].Zbmc from [Issue_Thesis_Relation],[Issue],[Thesis],[Thesis_Author],[Thesis_Author_Relation],[Issue_Groups],[Periodical],[Periodical_Type]  where [Issue_Groups].Zid = [Issue].Zid and [Issue_Thesis_Relation].Ktid =[Issue].Ktid and [Issue_Thesis_Relation].Lwid = [Thesis].Lwid and [Periodical].lid = [Periodical_Type].lid and [Thesis].qkid = [Periodical].qkid and [Thesis_Author_Relation].Lwid = [Thesis].Lwid and [Thesis_Author_Relation].Zzid = [Thesis_Author].Zzid)a where a.row>='" + startIndex + "'and a.row<'" + startindex1 + "'";
        DataSet myds1 = new DataSet();
        myds1 = SQLHelper.GetDataSet(sqlstr1);
        if (myds1.Tables[0].Rows.Count != 0)
        {
            GridView1.DataSource = myds1;
            GridView1.DataBind();
        }
        else
        {  
            DataTable mytable = new DataTable();
            mytable.Columns.Add("CssClass", System.Type.GetType("System.String"));
            mytable.Columns.Add("lwid");
            mytable.Columns.Add("lwtitle");
            mytable.Columns.Add("qklx");
            mytable.Columns.Add("Qkmc");
            mytable.Columns.Add("Zzxm");
            mytable.Columns.Add("Sci");
            mytable.Columns.Add("Zbmc");
            mytable.Columns.Add("LNd");
            mytable.Columns.Add("kttm");
            DataRow myrow = mytable.NewRow();
            mytable.Rows.Add(myrow);
            DataSet myset = new DataSet();
            myset.Tables.Add(mytable);
            GridView1.DataSource = myset;
            GridView1.DataBind();
            GridView1.Rows[0].Visible = false;

        
        }



    }