如何防止代码修改浏览器历史记录?

本文关键字：历史记录浏览器修改何防止代码 | 更新日期: 2023-09-27 18:17:00

下面是aspx的设置。当我修改下拉列表时，一个项目被添加到我的浏览器的历史记录中，这导致不必要的"返回"点击来转义页面。

如何防止aspx修改浏览器的历史记录?

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="RealTimeTracking.aspx.cs" Inherits="RealTimeTracking" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
    <title>Real Time Tracking</title>
    <script type="text/javascript">
        function UpOneLevel() {
            window.location.href = "TableofContents.aspx";
        }
    </script>
    <link href="Calender/Style/calendar-blue.css" rel="stylesheet" type="text/css" />
    <script language="javascript" src="Calender/calendar.js" type="text/javascript"></script>
    <script language="javascript" src="Calender/calendar-setup.js" type="text/javascript"></script>
    <script type="text/javascript" src="Calender/lang/calendar-en.js"></script>
</asp:Content>
<asp:Content ID="masterBody" ContentPlaceHolderID="body" runat="server">
    <h2 class="text">
        Real Time Tracking</h2>
    <h3 class="text">
        Select a Unit</h3>
    <h5 class="userinfotable">
        Phone:
        <asp:Label ID="lbl_PhoneValue" runat="server"></asp:Label></h5>
    <h5 class="userinfotable">
        Client:
        <asp:Label ID="lbl_ClientValue" runat="server"></asp:Label></h5>
    <asp:Label ID="lblErrormsg" runat="server" CssClass="words"></asp:Label>
    <table class="tbusernamepassword" style="text-shadow: none; color: Black; font-size: .9em; text-align: center;">
        <tr>
            <td>
                <asp:Label ID="txtPleaseSelect" runat="server" CssClass="words" Style="padding: 0px;">
                    Please Select an Asset from the drop down menu.</asp:Label>
            </td>
        </tr>
        <tr>
            <td>
                <asp:Label ID="lblMsg" runat="server" CssClass="vedispMsg"></asp:Label>
                <asp:DropDownList ID="DropSelectUnit" runat="server" AutoPostBack="true" OnSelectedIndexChanged="DropSelect_SelectedIndex"
                    OnLoad ="DropSelect_SelectedIndex"
                    DataTextField="Text" 
                    DataValueField="Value"
                    CssClass="tdsubmitbutton" Width="100%">
                </asp:DropDownList>
            </td>
        </tr>
    </table>
    <asp:Button ID="GoButton" runat="server" Text="Go To Map" OnClick="GoButton_Click" CssClass="tdsubmitbutton" Width="130px" />
    <p>
        &nbsp;
    </p>
    <p>
        &nbsp;
    </p>
    <asp:PlaceHolder runat="server" OnLoad="PingRateTable">
    <table class="tbusernamepassword" style="text-shadow: none; color: Black; font-size: .9em; text-align: center;padding-bottom:2px;">
        <tr>
            <td>
                <asp:Label ID="Label1" runat="server" CssClass="words" Style="padding: 0px;">
                    Select a Ping Rate.</asp:Label>
            </td>
        </tr>
        <tr>
            <td>
                <asp:Label ID="Label2" runat="server" CssClass="vedispMsg"></asp:Label>
                <asp:DropDownList ID="PingRate" runat="server" AutoPostBack="true" OnSelectedIndexChanged="PingRate_SelectedIndex"
                    OnLoad ="PingRate_SelectedIndex"
                    CssClass="tdsubmitbutton" Width="100%">
                </asp:DropDownList>
            </td>
        </tr>
        <tr>
            <td>
                &nbsp;
            </td>
        </tr>
        <tr>
            <td>
                <asp:Button ID="PingButton" runat="server" Text="Set Ping Rate" OnClick="PingButton_Click" CssClass="tdsubmitbutton" Width="130px" />
            </td>
        </tr>
    </table>
    <table class="tbusernamepassword" style="text-shadow: none; color: Black; font-size: .9em; text-align: center;padding-top:0px;">
        <tr>
            <td>
                <asp:Label ID="IsPingSet" runat="server" CssClass="words" Style="padding: 0px;"></asp:Label>
            </td>
        </tr>
    </table>
    </asp:PlaceHolder>
    <div style="visibility:hidden;">
        <input type="text" id="formlatitude" name="latitude" />
        <input type="text" id="formlongitude" name="longitude" />
        <input type="text" id="formassetname" name="asset" />
        <input type="text" id="formdatetime" name="dateandtime" />
        <input type="text" id="formaddress" name="address" />
    </div>
</asp:Content>

后台代码c#

protected void Page_Load(object sender, EventArgs e)
{
    Common.CheckAnyLogin();
    Session["Action"] = Request.Url;
    AssetHelper assethelp = new AssetHelper();
    IsPingSet.Text = "";
    if (!IsPostBack)
    {
    }
}

protected void DropSelect_SelectedIndex(object sender, EventArgs e)
{
    if (sender.GetType().Name == "DropDownList")
    {
        Session["UnitName"] = ((DropDownList)sender).SelectedItem;
        Session["SerialNo"] = ((DropDownList)sender).SelectedValue;
    }
}