AJAX控件，开新帖

Question

刚才回答过我帖子的朋友们好     <asp:ScriptManager ID="ScriptManager1" runat="server">
     </asp:ScriptManager>
     <asp:UpdatePanel ID="UpdatePanel1" runat="server">
         <ContentTemplate>
             <asp:Timer ID="Timer1" runat="server" ontick="Timer1_Tick" Interval="5000">
             </asp:Timer>
         </ContentTemplate>
     </asp:UpdatePanel>废话少说，我上代码。cs文件中 static string strConnection = ConfigurationManager.AppSettings["sqlconn"].ToString();
    static SqlConnection conn = new SqlConnection(strConnection);    protected void Page_Load(object sender, EventArgs e)
    {
        Get();
    }    protected void Timer1_Tick(object sender, EventArgs e)
    {
        Get();
    }    protected void Get()
    {
        conn.Open();
        SqlCommand cmd = new SqlCommand("select * from a where a='嗷嗷嗷'", conn);
        SqlDataReader reader = cmd.ExecuteReader();
        if (reader.Read())
        {
            //this.PopupWin1.AutoShow = true;
            this.PopupWin1.Message = reader["a"].ToString();
            reader.Close();
        }
        else
        {
            //this.PopupWin1.AutoShow = false;
            this.PopupWin1.Message = "111";
            reader.Close();
        }
        conn.Close();
    }为什么没效果？

Answer 1

把UpdatePanel去掉 看下效果

Answer 2

protected void Page_Load(object sender, EventArgs e)
    {
        Timer1_Tick(null, null);
    }

Answer 3

俺是要局部刷新的，就只刷新PopupWin控件

Answer 4

1.在用户控中上放一个label控件
在控件的cs代码中定义一个属性
public string Msg
    {
        set { Label1.Text = value; }
    }2打开aspx页面
 <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
    
   
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:Timer ID="Timer1" Interval="1000" runat="server" ontick="Timer1_Tick">
            </asp:Timer>
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
            <uc1:WebUserControl ID="WebUserControl1" runat="server" />
        </ContentTemplate>
    </asp:UpdatePanel>