幻灯片使用ajax扩展程序从asp.net中的sql数据库访问图像 [英] slideshow using ajax extender that accesses images from sql database in asp.net

问题描述

尊敬的先生，

我已经申请了，其中我有简单的形象。

但我想从sql数据库访问Image并显示图片幻灯片。

简单应用程序代码如下。

 <   div  >  
 / *在您的页面中添加脚本管理器* / 
 <   asp：ScriptManager     ID   =   ScriptManager1    runat   = 服务器 >  
 <   / asp：ScriptManager  >  
 
 / *这是最初的i将向用户显示的图片* / 
 <   div  >  
 <   asp：Image     ID   =  img1    runat   =   server  
   
                                                                      < span class =code-attribute>    高度  =  400px  
   
                                                    < span class =code-attribute>                    宽度  =  400px  
   
                                                                         ImageUrl   = 〜/ images / aa.jpg    /  >  
 < span class =code-keyword><   / div  >  
 
 / *拖放SlideShowExtender * / 
 <   cc1：SlideShowExtender     ID   =  SlideShowExtender1    runat   =  server  
   
                                                                                        < span class =code-attribute>                     BehaviorID   =  SlideShowBehaviorID  
   
                        < span class =code-attribute>                                                                                     TargetControlID   =  img1  
   
                                                                                                             SlideShowServiceMethod   =  GetImagesForSlide  
   
        自动播放  = < span class =code-keyword> true  
   
     ImageDescriptionLabelID   =  lblDesc  
   
      < span class =code-attribute>                                                                                                       NextButtonID   =  btnNext  
   
                                                                                              < span class =code-attribute>               PreviousButtonID   = < span class =code-keyword> btnPrev  
   
                < span class =code-attribute>                                        < span class =code-attribute>                                                     PlayButtonID   =  btnPlay  
   
       PlayButtonText   = 播放  
   
               StopButtonText   = 停止  
   
                                        循环  =  true   >  
 <   / cc1：SlideShowExtender  >  
 <   div  >  
 / *有关图片的说明将显示在此标签中* / 
 <   asp：标签    ID   =  lblDesc    runat   =  server   文字  =  > ;  <   / asp：Label  > ;  <   br     /  >  
 
 / *上一页，下一页按钮查看上一页，下一个图像和播放和停止按钮开始和停止幻灯片放映* / 
 <   asp：Button     ID   =  btnPrev    runat   =  server   文字  = 上一页    /  >  
 <   asp：按钮    ID   =  btnPlay    runat   =  server   文本  =     /  >  
 <   asp：按钮    ID   =   btnNext    runat   =  server   文字  = 下一页    /  >  
 <   / div  >  
 <   / div  >  

SlideShowExtender使用页面方法（GetImagesForSlide）。在后面的代码中添加以下页面方法。

[System.Web.Services.WebMethod]
[System.Web.Script.Services.ScriptMethod]
public static AjaxControlToolkit.Slide [] GetImagesForSlide（）
{
AjaxControlToolkit.Slide [] imgSlide = new AjaxControlToolkit.Slide [ 4 ];


/ * 为幻灯片放映提供一些图像* /

imgSlide [ 0 ] = new AjaxControlToolkit.Slide（ images / aa.jpg， Flower， Flower）;
imgSlide [ 1 ] = new AjaxControlToolkit.Slide（ images / atlanta.jpg， City， Atlanta）;
imgSlide [ 2 ] = new AjaxControlToolkit.Slide（ images / img1.jpg， Picture， 想象一下）;
imgSlide [ 3 ] = new AjaxControlToolkit.Slide（ images / logo.png， 团队徽标， 徽标）;
return （imgSlide）;
}

解决方案

尝试使用你想要显示图像的ur数据库和tabale并添加hhtp haddler加载图像...这和我在同一个问题上做过的一样......它会帮助你很多...研究它



http://stackoverflow.com/questions/11788577 /如何实施 - 幻灯片 - 扩展器 - 在asp-net-c-sharp-with-database [ ^ ]

Check此链接：将图像从数据库获取到Ajax ToolKit幻灯片放映扩展器 [ ^ ]



希望它帮助你了解你想要的东西。

Respected Sir,
I have made application ,In which I have simple image is putting.
But I want to access Image from sql database and show image slideshow.
Code for simple application as follow.

<div>
        /*Add a script manager in your page */
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>

       /*This is the initial image that will be shown to the user*/
       <div>
             <asp:Image ID="img1" runat="server"

                                    Height="400px"

                                   Width="400px"

                                   ImageUrl="~/images/aa.jpg" />
       </div>

       /*Drag and Drop a SlideShowExtender*/
       <cc1:SlideShowExtender ID="SlideShowExtender1" runat="server"

                                                     BehaviorID="SlideShowBehaviorID"

                                                     TargetControlID="img1"

                                                     SlideShowServiceMethod="GetImagesForSlide"

   AutoPlay="true"

 ImageDescriptionLabelID="lblDesc"

                                                     NextButtonID="btnNext"

                                                     PreviousButtonID="btnPrev"

                                                     PlayButtonID="btnPlay"

  PlayButtonText="Play"

      StopButtonText="Stop"

                   Loop="true" >
       </cc1:SlideShowExtender>
       <div>
            /*Description about the image will be shown in this Label*/
     <asp:Label ID="lblDesc" runat="server" Text=""></asp:Label><br />

           /*Previous, Next Button to see the previous, next image and Play and  stop button to start and stop the  slide show */
         <asp:Button ID="btnPrev" runat="server" Text="Previous" />
         <asp:Button ID="btnPlay" runat="server" Text="" />
         <asp:Button ID="btnNext" runat="server" Text="Next" />
        </div>
 </div>

The SlideShowExtender uses a page method(GetImagesForSlide).In code behind add the following page method.

[System.Web.Services.WebMethod]
[System.Web.Script.Services.ScriptMethod]
  public static AjaxControlToolkit.Slide[] GetImagesForSlide()
   {
       AjaxControlToolkit.Slide[] imgSlide = new AjaxControlToolkit.Slide[4];


       /*Provide some images for slide show*/

       imgSlide[0] = new AjaxControlToolkit.Slide("images/aa.jpg",    "Flower", "Flower");
       imgSlide[1] = new   AjaxControlToolkit.Slide("images/atlanta.jpg","City", "Atlanta");
       imgSlide[2] = new AjaxControlToolkit.Slide("images/img1.jpg","Picture", "Imagine");
       imgSlide[3] = new AjaxControlToolkit.Slide("images/logo.png", "Team Logo", "Logo");
       return (imgSlide);
   }

解决方案

try by using ur database and tabale from which u want to display images and also add hhtp haddler to load images ...this same which i have done once on same issue...it will help u a lot...study it

http://stackoverflow.com/questions/11788577/how-to-implement-slideshow-extender-in-asp-net-c-sharp-with-database[^]

Check this link: Getting images from data base to Ajax ToolKit slide show extender[^]

Hope it helps you about what you want.

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