控件在5秒内消失

前台代码

  <div>
        <asp:Button ID="Button1" runat="server" Text="Button" />
        <br />
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick">
        </asp:Timer>
    </div>

必须有ScriptManager1而且在Timer1的前面不然报如下错误

后台代码

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Timer1.Interval = 5000;//在5秒内执行Tick事件

        }


    }
    protected void Timer1_Tick(object sender, EventArgs e)
    {
        Button1.Visible = false;
    }