我的页面上有一个ASP按钮，可以在回发时触发事件。这曾经工作但已停止在搜索表单所在的每个页面上工作。这个特殊的代码没有更新，因为我已经完成所有设置和工作。按钮代码如下所示：
<asp:Button id="search_button" class="search_button" runat="server" OnClick="search_button_click" />
回发事件代码如下：
protected void search_button_click(Object sender, EventArgs e)
{
SessionHandler.sqlSearchTerm = searchBox.Text;
if (Int32.Parse(searchCatDdl.SelectedValue.ToString()) > 0)
{
SessionHandler.search_mcat_id = searchCatDdl.SelectedValue.ToString();
}
else
{
SessionHandler.search_mcat_id = "0";
}
Response.Redirect("/search.aspx");
Response.End();
}
我尝试用Response.Write("Hit");替换事件内部的代码，但它根本没有触发。该页面确实回发了。页面（或任何页面）上没有额外的</form>标记，只留下一个打开的表单标记和一个结束表单标记。就像我说的那样，这曾经有效，但现在却没有。
Page_Load方法中唯一的代码是为搜索表单创建下拉选项的代码（它始终有效且仍然有效）。没有什么可以结束输出或功能。我试图获得调试想法，以便弄清楚为什么这会停止工作。我试图获取用于导致回发的对象的ID，但它是空白的。再说一遍，也许我做错了。在Page_Load方法中，我做了一些“请求[＆＃34; __（某事）＆＃34;];＆＃39;。我不记得它到底是什么，但它将它设置为一个字符串变量，该变量应该包含对象ID。无论如何，任何帮助将不胜感激。
修改
我还想指出，如果我将按钮的OnClick属性更改为不存在的内容，则会出错。因此，似乎事情设置正确，因为我拥有它们（无论如何）。此外，网站上的每个其他控件仍然有效，并触发它的回发事件。
以下是我的控件所在的面板：
<asp:Panel cssClass="search_items" id="pnlSearchButton" runat="server" DefaultButton="search_button">
<div class="search_bar">
<table>
<tr>
<td width="200"><h3 class="title">auction items</h3></td>
<td width="230"><asp:TextBox ID="searchBox" runat="server" placeholder="Search" name="search" /></td>
<td width="220">
<div class="select_cont option-set" id="filters">
<asp:DropDownList runat="server" ID="searchCatDdl" cssClass="option-set clearfix" data-filter-group="selectset">
</asp:DropDownList>
</div>
</td>
<td width="70"><asp:Button id="search_button" cssClass="search_button" runat="server" OnClick="search_button_click" /></td>
<td>
<a class="search_icon icon_collapse" id="toggle4"></a>
<div class="search_icon divider"></div>
<a href="#" class="search_icon icon_gridview" id="toggle6"> </a>
<a href="#" class="search_icon icon_listview" id="toggle5"> </a>
<div class="search_icon divider"></div>
<a href="/search.aspx?adv=1" class="search_icon icon_advanced"> </a>
</td>
</tr>
</table>
</div>
</asp:Panel>
在我的页面顶部：
<%@ Master Language="C#" MasterPageFile="~/master-pages/Site.Master" AutoEventWireup="true" CodeFile="HeaderFooter.master.cs" Inherits="master_pages.HeaderFooter" %>
此特定页面背后的完整代码：
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Globalization;
using System.Linq;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace CowansRedesign.master_pages
{
public partial class HeaderFooter : System.Web.UI.MasterPage
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
if (!String.IsNullOrEmpty(Request.QueryString["logout"]))
{
SessionHandler.mailId = "";
SessionHandler.mailName = "";
SessionHandler.mailFirstName = "";
}
if (!String.IsNullOrEmpty(SessionHandler.mailId) && !String.IsNullOrEmpty(SessionHandler.mailFirstName) && Request.ServerVariables["SCRIPT_NAME"].ToString() != "/default.aspx")
{
if (hiName != null) {
hiName.Text = "Hi " + SessionHandler.mailFirstName;
}
}
}
if (!IsPostBack && searchCatDdl != null)
{
Dictionary<string, string> mainCatList = new Dictionary<string, string>();
mainCatList.Add("0", "All Categories");
using (SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["wesdb1SQL"].ToString()))
using (SqlCommand strSQL = conn.CreateCommand())
{
strSQL.CommandText = "Select mcat_id, mcat_name " +
"From tblMcat " +
"ORDER BY mcat_name ASC";
try
{
conn.Open();
using (SqlDataReader itemReader = strSQL.ExecuteReader())
{
while (itemReader.Read())
{
mainCatList.Add(itemReader["mcat_id"].ToString(), itemReader["mcat_name"].ToString());
}
itemReader.Close();
}
}
catch (Exception e1)
{
Console.WriteLine(e1.ToString());
//Response.Write(e.ToString());
}
finally
{
conn.Close();
}
}
searchCatDdl.DataSource = mainCatList;
searchCatDdl.DataTextField = "Value";
searchCatDdl.DataValueField = "Key";
searchCatDdl.DataBind();
}
}
protected void overlay_itemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
bool isSaleOnline = Public.isSaleOnline(DataBinder.Eval(e.Item.DataItem, "EventSaleId").ToString());
bool isSaleLotted = Public.isSaleLotted(DataBinder.Eval(e.Item.DataItem, "EventSaleId").ToString());
Image overlayImage = (Image)e.Item.FindControl("overlayImage");
HyperLink auctionLink = (HyperLink)e.Item.FindControl("viewAuction");
HyperLink regLink = (HyperLink)e.Item.FindControl("viewReg");
HyperLink catalogLink = (HyperLink)e.Item.FindControl("viewCatalog");
Label slide_date = (Label)e.Item.FindControl("slide_date");
Label EventName = (Label)e.Item.FindControl("EventName");
EventName.Text = DataBinder.Eval(e.Item.DataItem, "EventName").ToString();
overlayImage.ImageUrl = "http://cowansauctions.com/webimages/events/" + DataBinder.Eval(e.Item.DataItem, "EventMain");
string[] formats = { "MM/dd/yyyy", "MM-dd-yyyy", "yyyy-MM-dd HH:mm:ss", "yyyyMMdd HH:mm:ss" };
IFormatProvider culture = new CultureInfo("en-US", true);
DateTime formattedDate;
//Response.Write(DataBinder.Eval(e.Item.DataItem, "homeDate").ToString());
//Response.End();
DateTime.TryParseExact(DataBinder.Eval(e.Item.DataItem, "homeDate").ToString(), formats, culture, DateTimeStyles.None, out formattedDate);
slide_date.Text = String.Format("{0:MM.dd.yy}", formattedDate);
if (DataBinder.Eval(e.Item.DataItem, "EventSaleId").ToString().Length >= 1)
{
auctionLink.Text = "More about the auction >";
auctionLink.NavigateUrl = "/auctions/details.aspx?id=" + DataBinder.Eval(e.Item.DataItem, "EventId");
if (isSaleOnline)
{
catalogLink.Text = "View Catalog >";
catalogLink.NavigateUrl = "/auctions/catalog.aspx?id=" + DataBinder.Eval(e.Item.DataItem, "EventSaleId") + "" + (!String.IsNullOrEmpty(DataBinder.Eval(e.Item.DataItem, "EventStartPage").ToString()) ? "&page=" + DataBinder.Eval(e.Item.DataItem, "EventStartPage") : "");
regLink.Text = "Register to bid online >";
regLink.NavigateUrl = "/auctions/live-bid.aspx";
}
else
{
if (Convert.ToBoolean(DataBinder.Eval(e.Item.DataItem, "EventRegister")))
{
regLink.Text = "Register to bid online >";
regLink.NavigateUrl = "/auctions/live-bid.aspx";
}
if (isSaleLotted)
{
catalogLink.Text = "View Catalog >";
catalogLink.NavigateUrl = "/auctions/catalog.aspx?id=" + DataBinder.Eval(e.Item.DataItem, "EventSaleId") + "" + (!String.IsNullOrEmpty(DataBinder.Eval(e.Item.DataItem, "EventStartPage").ToString()) ? "&page=" + DataBinder.Eval(e.Item.DataItem, "EventStartPage") : "");
}
}
}
else
{
catalogLink.Text = "View Event Details >";
catalogLink.NavigateUrl = "/event.aspx?id=" + DataBinder.Eval(e.Item.DataItem, "EventId");
auctionLink.Visible = false;
regLink.Visible = false;
}
}
}
protected void search_button_click(Object sender, EventArgs e)
{
SessionHandler.sqlSearchTerm = searchBox.Text;
if (Int32.Parse(searchCatDdl.SelectedValue.ToString()) > 0)
{
SessionHandler.search_mcat_id = searchCatDdl.SelectedValue.ToString();
}
else
{
SessionHandler.search_mcat_id = "0";
}
Response.Redirect("/search.aspx");
Response.End();
}
public static string StripHTML(string htmlString)
{
string pattern = @"<(.|\n)*?>";
return Regex.Replace(htmlString, pattern, string.Empty);
}
}
}
答案 0 :(得分：1)
好吧，我终于找到了这个问题。我正在回想起并意识到我所做的最后一次更改是将Google的代码管理器代码添加到网站进行一些SEO跟踪。该代码原来是导致这一件事停止工作的原因。我不知道为什么。我删除了它，一切正常。
<!-- Google Tag Manager -->
<noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-5XQX2B"
height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-fdsafdsa');</script>
<!-- End Google Tag Manager -->