我知道这是一个相当常见的错误，但在这种情况下我的情况有点不同。
有时，我不会得到这个错误，有时我会，这是不理想的。
通常我会更改inherit名称并将public partial class更改为相同，但工作正常，但过了一段时间我会收到以下内容。
Error 1 The name 'display_modules' does not exist in the current context all-modules.aspx.cs 31 13 Branch(3)
Error 2 The name 'display_modules' does not exist in the current context all-modules.aspx.cs 32 13 Branch(3)
Error 3 The name 'display_modules' does not exist in the current context all-modules.aspx.cs 33 13 Branch(3)
Error 4 The name 'add_modules' does not exist in the current context all-modules.aspx.cs 34 13 Branch(3)
Error 5 The name 'display_modules' does not exist in the current context all-modules.aspx.cs 42 13 Branch(3)
Error 6 The name 'display_modules' does not exist in the current context all-modules.aspx.cs 43 13 Branch(3)
Error 7 The name 'display_modules' does not exist in the current context all-modules.aspx.cs 44 13 Branch(3)
以下是我的C＃代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Text;
public partial class all_modules: System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
//Only allow admins, academic program managers and Senior University Managers to view page
helper.Authorised(1, 2, 3);
//get role_id of logged in user
int role_id;
role_id = Convert.ToInt32(Session["role_id"]);
//get id of logged in user
string user_id = Session["user_id"].ToString();
//if admin
if (role_id == 1 || role_id == 3) {
string query = "SELECT courses.course_name, staff_records.f_name, staff_records.l_name, modules.module_name, modules.module_tutor, modules.module_id FROM courses_vs_modules INNER JOIN modules ON courses_vs_modules.module_id = modules.module_id INNER JOIN staff_records ON modules.module_tutor = staff_records.user_id INNER JOIN courses ON courses_vs_modules.course_id = courses.course_id WHERE (courses.school IN (SELECT school_id FROM staff_records AS staff_records_1 WHERE (user_id = @user_id))) ORDER BY courses.course_name";
DataTable dt = GetData(query, user_id);
display_modules.DataSource = dt;
display_modules.DataBind();
display_modules.Visible = true;
add_modules.Visible = true;
}
//if senior uni manager
if (role_id == 2) {
string query = "SELECT courses.course_name, staff_records.f_name, staff_records.l_name, modules.module_name, modules.module_tutor, modules.module_id FROM courses_vs_modules INNER JOIN modules ON courses_vs_modules.module_id = modules.module_id INNER JOIN staff_records ON modules.module_tutor = staff_records.user_id INNER JOIN courses ON courses_vs_modules.course_id = courses.course_id ORDER BY courses.course_name";
DataTable dt = GetDataSen(query);
display_modules.DataSource = dt;
display_modules.DataBind();
display_modules.Visible = true;
}
}
private static DataTable GetData(string query, string user_id) {
DataTable dt = new DataTable();
SqlCommand cmd = new SqlCommand(query);
String constr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
SqlConnection con = new SqlConnection(constr);
SqlDataAdapter sda = new SqlDataAdapter();
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
sda.SelectCommand = cmd;
cmd.Parameters.AddWithValue("@user_id", user_id);
sda.Fill(dt);
return dt;
}
private static DataTable GetDataSen(string query) {
DataTable dt = new DataTable();
SqlCommand cmd = new SqlCommand(query);
String constr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
SqlConnection con = new SqlConnection(constr);
SqlDataAdapter sda = new SqlDataAdapter();
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
sda.SelectCommand = cmd;
sda.Fill(dt);
return dt;
}
}
这是我的ASP.net
<%@ Page Title="All Modules" MasterPageFile="MasterPage.master" Language="C#" AutoEventWireup="true" CodeFile="~/all-modules.aspx.cs" Inherits="all_modules" %>
<asp:Content ContentPlaceHolderID="head" Runat="Server">
<script>
$(document).ready(function () {
//makes contains filter case insensitive
$.expr[":"].contains = $.expr.createPseudo(function (arg) {
return function (elem) {
return $(elem).text().toUpperCase().indexOf(arg.toUpperCase()) >= 0;
};
});
//search has the user types
$('.search-box').keyup(function () {
var search_term = $(this).val();
if (search_term == "") {
//show all if nothing was entered
$('.project-link').removeClass('hide');
} else {
// hide all and then show only the search results
$('.project-link').addClass('hide');
$('.module-list *:contains("' + search_term + '")').closest('.project-link').removeClass('hide');
}
//check if any results were found
if ($('.project-link').not('.hide').length)
{
$('.no-results').addClass('hide');
} else {
$('.no-results').removeClass('hide');
}
});
});
</script>
</asp:Content>
<asp:Content ContentPlaceHolderID="menu" Runat="Server"></asp:Content>
<asp:Content ContentPlaceHolderID="main_content" Runat="Server">
<div class="row">
<div class="col-12">
<h1>All Modules</h1>
<h5 class="subheading">Search through a complete list of modules.</h5>
<a href="add-modules.aspx" class="button blue" runat="server" id="add_modules" visible="false">Add Modules</a>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="panel">
<h3>Search Modules:</h3>
<input type="text" class="search-box full-width" placeholder="Search via module name, code, course or lecturer" />
</div>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="panel">
<asp:ListView ID="display_modules" runat="server" Visible="false">
<ItemTemplate>
<div class="project-link module-list">
<a href='<%# "module.aspx?module=" + Eval("module_id") %>'>
<p class="project-label"><%# Eval("course_name") %>
</p>
<asp:Label Text='
<%# Eval("module_id") + " - " %>' runat="server" CssClass="story-title" ID="Label1" />
<asp:Label Text='
<%# Eval("module_name") %>' runat="server" CssClass="story-title" ID="story_titleLabel" />
<span>
<p class="project-label"><%# Eval("f_name") + " " + Eval("l_name") %>
</p>
<div class="to-module"></div>
</a>
</div>
</ItemTemplate>
</asp:ListView>
<p class="hide no-results">No search results were found.</p>
</div>
</div>
</div>
</asp:Content>
知道为什么会这样吗？任何帮助将不胜感激