response.redirect在使用计时器刻度的更新面板中不工作

本文关键字：更新 工作 redirect 计时器 response | 更新日期: 2023-09-27 18:26:54

我需要使用更新面板中的按钮重定向页面。但当我尝试这个时，它对我不起作用。有人能帮我吗。请在下面找到我的代码。

   <body>
     <form id="form1" runat="server">
          <asp:ScriptManager ID="ScriptManager1" runat="server" />
        <div>
            <asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
                <ContentTemplate>
            <asp:Label ID="Label2" runat="server" Text="Label" Width="345px"></asp:Label><br />
                    <br />    
                    <asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder> 
                    <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>     
                    <asp:Label ID="Label3" runat="server" Text="Label"></asp:Label>        
                </ContentTemplate>
                <Triggers>
                <asp:AsyncPostBackTrigger ControlID="Button2" EventName="Click" />
                 <asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
                </Triggers>
            </asp:UpdatePanel>
              <asp:Timer ID="Timer1" runat="server" ontick="Timer1_Tick" Interval="500">
                    </asp:Timer>
            <br />
            <asp:Button ID="Button1" runat="server" Text="Button" Width="344px" OnClick="Button1_Click" /><br />
            <asp:Button ID="Button2" runat="server" Text="Button" />
            <br />
            <br />
            &nbsp;</div>
    </form>
              </body>

我的代码隐藏代码

public partial class test : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        protected void Button1_Click(object sender, EventArgs e)
        {

        }
        public void imgBtn_Click(object sender, EventArgs e)
        {
            Response.Redirect("~/HotelResult.aspx");
        }
        protected void Timer1_Tick(object sender, EventArgs e)
        {
            Timer1.Enabled = false;
            Label1.Text = DateTime.Now.ToString();
            Label2.Text = DateTime.Now.ToString();
            Label3.Text = DateTime.Now.ToString();
            ImageButton testbtn = new ImageButton();
            testbtn.ID = "testbtnid";
            testbtn.Click += new System.Web.UI.ImageClickEventHandler(this.imgBtn_Click);
            testbtn.ImageUrl = "images/book-btn.png";
            PlaceHolder1.Controls.Add(testbtn);
        }

    }

response.redirect在使用计时器刻度的更新面板中不工作

这里的问题是ImageButton仅在计时器勾选后添加到页面。如果希望为这种动态添加的控件调用服务器端处理程序，则必须在每次回发时将添加到页面中。以下是如何使用密钥视图状态进行操作：

protected void Page_Load(object sender, EventArgs ea)
{
    bool? addHotelResultButton = ViewState["AddHotelResultButton"] as bool?;
    if (addHotelResultButton.HasValue && addHotelResultButton.Value)
    {
        AddHotelResultButton();
    }
}
protected void Timer1_Tick(object sender, EventArgs e)
{
    ViewState["AddHotelResultButton"] = true;
    AddHotelResultButton();
}
protected void AddHotelResultButton()
{
    Timer1.Enabled = false;
    Label1.Text = DateTime.Now.ToString();
    Label2.Text = DateTime.Now.ToString();
    Label3.Text = DateTime.Now.ToString();
    ImageButton testbtn = new ImageButton();
    testbtn.ID = "testbtnid";
    testbtn.Click += new System.Web.UI.ImageClickEventHandler(this.imgBtn_Click);
    testbtn.ImageUrl = "images/heroAccent.png";
    PlaceHolder1.Controls.Add(testbtn);
}

我会这样做：

  • 把你的按钮放在你的更新面板内并禁用它

  • 将其作为触发器放入<triggers>标签中

  • 当勾选事件到来时，启用您的按钮

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