using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Linq;
namespace ADU
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        GuestBookDataContext dct = new GuestBookDataContext("server=.;database=GuestBook;uid=sa;pwd=123");
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                SetBind();
            }
        }        protected void btn_SendMessage_Click(object sender, EventArgs e)
        {
            tbGuestBook gb = new tbGuestBook();
            gb.ID = Guid.NewGuid();
            gb.UserName = tb_UserName.Text;
            gb.Message = tb_Message.Text;
            gb.IsReplied = false;
            gb.PostTime = DateTime.Now;
            dct.tbGuestBooks.Add(gb); //就是这行有错,怎么打不出来Add方法
            dct.SubmitChanges();
            SetBind();
        }
        private void SetBind()
        {
            rpt_Message.DataSource = from gb in dct.tbGuestBooks
                                     orderby gb.PostTime descending
                                     select gb;
            rpt_Message.DataBind();
        }
    }
}为什么啊打不出Add方法啊

解决方案 »

  1.   

    dct.tbGuestBooks.InsertOnSubmit(gb);试试这样
      

  2.   


     tbGuestBook gb = new tbGuestBook();
                gb.ID = Guid.NewGuid();
                gb.UserName = tb_UserName.Text;
                gb.Message = tb_Message.Text;
                gb.IsReplied = false;
                gb.PostTime = DateTime.Now;
                //dct.tbGuestBooks.Add(gb); //不用这行,改成
                 InsertOnSubmit();
                dct.SubmitChanges();
      

  3.   


     tbGuestBook gb = new tbGuestBook();
                gb.ID = Guid.NewGuid();
                gb.UserName = tb_UserName.Text;
                gb.Message = tb_Message.Text;
                gb.IsReplied = false;
                gb.PostTime = DateTime.Now;
                //dct.tbGuestBooks.Add(gb); //不用这行,改成
                 dct.tbGuestBooks.InsertOnSubmit(gb);
                dct.SubmitChanges();