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如果网站创建为 Visual C# ASP.Net Web 应用程序在 VS2015 中，PageMethods 不起作用

[英]PageMethods not working if the website is created as a Visual C# ASP.Net Web Application in VS2015

 原文  2020-05-31 10:44:12  2   1    javascript/ c#/ asp.net/ pagemethods

问题描述

我是 web 的新手，使用 VS（Visual Studio）进行开发。 我有以下问题，如果你能分享你对此的看法，我将不胜感激。

问题：如果我通过 [File] - [New Web Site] - [ASP.NET Empty Web Site] 在 VS 中创建一个新网站，PageMethods 工作正常。 但是，如果我通过 [File] - [New Project] - [Visual C# ASP.NET Web Web 给定的应用程序] 在 VS 中创建一个新网站，那么 PageMethods 不会按照以下文件工作。 此外，我无法运行在 aspx.cs 文件中创建的任何方法！

显然，我错过了一个基本的步骤/概念，但不幸的是我看不到它！

ASPX 文件：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Test4.aspx.cs" Inherits="ETDBWebApplication1.Content.Test.Test4" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script src="~/Scripts/jquery-3.5.1.js"></script>
</head>
<body>
    <form id="form1" runat="server">
        <asp:ScriptManager runat="server" ID="sm1" EnablePageMethods="true" />
        <div>
            <script type="text/javascript">
                function getValues() {
                    var text1 = $('#txt1').val();
                    PageMethods.GetValues(text1, getValues_Success, getValues_Fail);
                }
                function getValues_Success(msg){
                    $('#div1').html(msg);
                }
                function getValues_Fail(msg) {
                    alert(msg.get_message());
                }
            </script>
            <input type="text" id="txt1" />
            <br />
            <input type="button" onclick="getValues();" value="get values"/>
            <br />
            <br />
            <div id="div1"></div>
        </div>
    </form></body>
</html>

ASPX.CS 文件（代码隐藏）：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace ETDBWebApplication1.Content.Test
{
    public partial class Test4 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        [WebMethod]
        public static string GetValues(string value)
        {
            value = value + DateTime.UtcNow.ToLongTimeString();
            return value;
        }
    }
}

Web.配置：

<?xml version="1.0"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
  </configSections>
  <connectionStrings>
    <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-ETDBWebApplication1-20200211070838.mdf;Initial Catalog=aspnet-ETDBWebApplication1-20200211070838;Integrated Security=True" providerName="System.Data.SqlClient"/>
  </connectionStrings>
  <!--
    For a description of web.config changes see http://go.microsoft.com/fwlink/?LinkId=235367.

    The following attributes can be set on the <httpRuntime> tag.
      <system.Web>
        <httpRuntime targetFramework="4.5.2" />
      </system.Web>
  -->
  <system.web>
    <customErrors mode="Off"/>
    <authentication mode="None"/>
    <compilation debug="false" targetFramework="4.5.2" />
    <httpRuntime targetFramework="4.5.2" />
    <pages controlRenderingCompatibilityVersion="4.0">
      <namespaces>
        <add namespace="System.Web.Optimization"/>
        <add namespace="Microsoft.AspNet.Identity"/>
      </namespaces>
      <controls>
        <add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt"/>
      </controls>
    </pages>
    <membership>
      <providers>
        <!--
        ASP.NET Membership is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
        <clear/>
      </providers>
    </membership>
    <profile>
      <providers>
        <!--
        ASP.NET Membership Profile is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
        <clear/>
      </providers>
    </profile>
    <roleManager>
      <!--
          ASP.NET Membership Role is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
      <providers>
        <clear/>
      </providers>
    </roleManager>
    <!--
            If you are deploying to a cloud environment that has multiple web server instances,
            you should change session state mode from "InProc" to "Custom". In addition,
            change the connection string named "DefaultConnection" to connect to an instance
            of SQL Server (including SQL Azure and SQL  Compact) instead of to SQL Server Express.
      -->
    <sessionState mode="InProc" customProvider="DefaultSessionProvider">
      <providers>
        <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection"/>
      </providers>
    </sessionState>
    <httpModules>
      <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web"/>
    </httpModules>
  </system.web>
  <system.webServer>
    <modules>
      <remove name="FormsAuthentication"/>
      <remove name="ApplicationInsightsWebTracking"/>
      <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition="managedHandler"/>
    </modules>
    <validation validateIntegratedModeConfiguration="false"/>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed"/>
        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="WebGrease" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089"/>
        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security.OAuth" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security.Cookies" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
      <parameters>
        <parameter value="mssqllocaldb"/>
      </parameters>
    </defaultConnectionFactory>
    <providers>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/>
    </providers>
  </entityFramework>
  <system.codedom>
    <compilers>
      <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701"/>
      <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+"/>
    </compilers>
  </system.codedom>
</configuration>

提前谢谢了。 岑克

1 个解决方案

解决方案1
 0  2020-06-03 03:25:49

尝试在GetValues方法上使用ScriptMethod而不是WebMethod属性，如果仍然失败，请使用ScriptService属性装饰 aspx.cs class。

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