Question

我正在尝试基于c-sharpcorner.com上提供的演示代码来实现'ajaxToolkit：SlideShowExtender'属性。 https://www.c-sharpcorner.com/uploadfile/prathore/ajax-slideshowextender-control/

我查看了我网站的Web.config文件，以确保存在“ ajaxToolkit”的“控件”。
我已经通过NuGet管理器安装了“ AJAX Control Toolkit V18.1”，因此我相信该dll已正确安装。
我检查了图像路径，没关系。
ScriptManager可能遗失或存在某些问题，该脚本是在“ Site.master”页面上配置的，由于它只能包含一个ScriptManager，因此我无法将其添加到aspx页面。
我也无法添加标签'ajaxToolkit：ToolkitScriptManager'，因为它无法被识别。它说这不是一个已知元素。

从我的.aspx文件中：

<%@ Page Title="Producten" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeFile="Producten.aspx.cs" Inherits="Producten" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit"%>

<asp:Content ID="ContentStyle" ContentPlaceHolderID="Stylesheets" Runat="Server">
        <link rel="stylesheet" href="/Content/Site.css" type="text/css" />
</asp:Content>

<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">

    <table style="align-content:center; width:500px; height:250px;">
        <tr style="align-content:center;">
            <td>
                <asp:Label ID="lableImageDetail" runat="server" ForeColor="#000000" />
            </td>
        </tr>
        <tr style="align-content:center;">
            <td>
                <asp:Image runat="server" ID="image1" Height="250" Width="400" />
            </td>
        </tr>
        <tr style="text-align:center;">
            <td>
                <asp:Button ID="buttonPrev" runat="Server" Text="Previous" Width="80px" />
                <asp:Button ID="buttonPlay" runat="server" Text="Play" Width="80px" />
                <asp:Button ID="buttonNext" runat="Server" Text="Next" Width="80px" />
            </td>
        </tr>
    </table>

    <ajaxToolkit:SlideShowExtender ID="slideShowExtender1" runat="Server" TargetControlID="image1"
        ImageDescriptionLabelID="lableImageDetail" Loop="true" AutoPlay="true" StopButtonText="Stop" 
        PlayButtonText="Play" NextButtonID="buttonNext" PreviousButtonID="buttonPrev"
        PlayButtonID="buttonPlay" SlideShowServiceMethod="GetSlides" />

</asp:Content>

我后面的代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using AjaxControlToolkit;
using System.IO;
using System.Web.Services;
using System.Web.Script.Services;

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

    }

    [System.Web.Services.WebMethod]
    [System.Web.Script.Services.ScriptMethod]

    public static AjaxControlToolkit.Slide[] GetSlides()
    {
        AjaxControlToolkit.Slide[] slides = new AjaxControlToolkit.Slide[5];
        slides[0] = new AjaxControlToolkit.Slide("images-producten/image1.jpg", "First image of my album", "First Image");
        slides[1] = new AjaxControlToolkit.Slide("images-producten/image2.tif", "Second image of my album", "Second Image");
        slides[2] = new AjaxControlToolkit.Slide("images-producten/image3.tif", "Third image of my album", "Third Image");
        slides[3] = new AjaxControlToolkit.Slide("images-producten/image4.jpg", "Fourth image of my album", "Fourth Image");
        slides[4] = new AjaxControlToolkit.Slide("images-producten/image5.jpg", "Fifth image of my album", "Fifth Image");
        return (slides);
    }
}

PS。我正在运行Visual Studio 2017版本15.2（26430.16）和Microsoft .NET Framework版本4.7.03056。（targetFramework .NET = 4.5.2）

我非常想看看网页上的滑块中显示的图像。感谢所有帮助！

Answer 1

您要查找的代码适用于Vs 2005和.net 2.0。最新的工作代码在这里。问：ScriptManager可能有某些缺失或错误，它是在“ Site.master”页面上配置的，由于它只能包含一个ScriptManager，所以无法将其添加到aspx页面。 **

A。您必须将项目升级到.net 4.0，然后更改web.config 也。

**

https://github.com/DevExpress/AjaxControlToolkit/tree/master/AjaxControlToolkit.SampleSite/SlideShow

<?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>
    <section name="ajaxControlToolkit" type="AjaxControlToolkit.AjaxControlToolkitConfigSection, AjaxControlToolkit" requirePermission="false"/>
  </configSections>
  <ajaxControlToolkit useStaticResources="true" renderStyleLinks="false" htmlSanitizer="AjaxControlToolkit.HtmlEditor.Sanitizer.DefaultHtmlSanitizer, AjaxControlToolkit.HtmlEditor.Sanitizer" tempFolder="~/Temp"/>
  <location path="Temp">
    <system.webServer>
      <handlers>
        <clear/>
      </handlers>
      <modules>
        <clear/>
      </modules>
    </system.webServer>
  </location>
  <!--
    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="4.7" />
      </system.Web>
  -->
  <system.web>
    <compilation debug="true" targetFramework="4.7"/>
    <machineKey validation="SHA1" decryptionKey="7EE421F6987EAFF4998E0F2ED5544AF1B931C82A1602BC2E" validationKey="5278D83EDD8E36C27E019D3E975D62A3FDF0E8EF50DB69F659D03EB18A4459D2B3271AA075173012EF122E2B7BFA49CDE16CC0DCC68F3E862E1EEE491D300DC9"/>
    <siteMap>
      <providers>
        <add name="SamplesSiteMap" type="System.Web.XmlSiteMapProvider" siteMapFile="~/Samples.sitemap"/>
      </providers>
    </siteMap>
    <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
      <controls>
        <add assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagPrefix="ajaxToolkit"/>
        <add namespace="InfoBlock" tagPrefix="samples"/>
      </controls>
    </pages>
    <trust level="Medium"/>
  </system.web>
  <system.webServer>
    <handlers>
      <add name="AjaxFileUploadHandler" verb="*" path="AjaxFileUploadHandler.axd" type="AjaxControlToolkit.AjaxFileUploadHandler, AjaxControlToolkit"/>
    </handlers>
  </system.webServer>
  <runtime>

  </runtime>
</configuration>

Answer 2

我今天看到了你的问题...

您已经在项目中添加了文件夹名称“图像” ...，并根据您的喜好添加了多个图像...。
在.aspx页面中添加ajax工具包参考。...

<％@注册程序集=“ AjaxControlToolkit”命名空间=“ AjaxControlToolkit” TagPrefix =“ cc1”％>

.aspx页面代码.....

<html>
<head runat="server">
    <title></title>
    <style type="text/css">
        body
        {
            font-family: Arial;
            font-size: 10pt;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
<cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</cc1:ToolkitScriptManager>
<table border="0" cellpadding="0" cellspacing="0">
    <tr>
        <td>
            <asp:Button ID="btnPrevious" runat="server" Text="<<" Font-Size="20" />
        </td>
        <td>
            <asp:Image ID="Image1" runat="server" Height="300" Width="300" />
            <cc1:SlideShowExtender ID="SlideShowExtender" runat="server" TargetControlID="Image1"
                SlideShowServiceMethod="GetImages" ImageTitleLabelID="lblImageTitle" ImageDescriptionLabelID="lblImageDescription"
                AutoPlay="true" Loop="true" PlayButtonID="btnPlay" StopButtonText="Stop"
                PlayButtonText="Play" NextButtonID="btnNext" PreviousButtonID="btnPrevious">
            </cc1:SlideShowExtender>
        </td>
        <td>
            <asp:Button ID="btnNext" runat="server" Text=">>" Font-Size="20" />
        </td>
    </tr>
    <tr>
        <td colspan="3" align="center">
            <asp:Button ID="btnPlay" runat="server" Text="Play" Font-Size="20" />
        </td>
    </tr>
    <tr>
        <td colspan="3" align="center">
            <br />
            <b>Name:</b>
            <asp:Label ID="lblImageTitle" runat="server" Text="Label" /><br />
            <b>Description:</b>
            <asp:Label ID="lblImageDescription" runat="server" Text="Label" />
        </td>
    </tr>
</table>
    </form>
</body>

.cs页面代码...

using System;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using AjaxControlToolkit;
using System.Web.Services;
using System.Web.Script.Services;
using System.Collections.Generic;

public partial class CS : System.Web.UI.Page
{
[WebMethod]
[ScriptMethod]
public static Slide[] GetImages()
{
    List<Slide> slides = new List<Slide>();
    string path = HttpContext.Current.Server.MapPath("~/images/");
    if (path.EndsWith("\\"))
    {
        path = path.Remove(path.Length - 1);
    }
    Uri pathUri = new Uri(path, UriKind.Absolute);
    string[] files = Directory.GetFiles(path);
    foreach (string file in files)
    {
        Uri filePathUri = new Uri(file, UriKind.Absolute);
        slides.Add(new Slide
        {
            Name = Path.GetFileNameWithoutExtension(file),
            Description = Path.GetFileNameWithoutExtension(file) + " Description.",
            ImagePath = pathUri.MakeRelativeUri(filePathUri).ToString()
        });
    }
    return slides.ToArray();
}
}

注意：-只需以适当的方式将此代码放入您的项目中即可...这将起作用...我已经在我的项目中使用了此代码。....我正在使用3.5版本。

。

Answer 3

您似乎缺少了处理“ ScriptResource.axd”请求的处理程序。

<system.webServer>
<handlers>
<add name="ScriptResource" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" preCondition="integratedMode" />
</handlers>

图像未显示在ajaxtoolkit：slideshowextender

3 个答案: