从ASP.NET用户控件的相对路径NavigateUrl [英] Relative path from an ASP.NET user control NavigateUrl

问题描述

我有一个包含一个GridView的用户控件。 GridView控件既有HyperLinkField字段列，并包含一个超链接控制模板列。

I have a user control that contains a GridView. The GridView has both a HyperLinkField column and a template column that contains a HyperLink control.

ASP.NET项目的结构如下，在每种情况下使用用户控制Default.aspx页面。

The ASP.NET project is structured as follows, with the Default.aspx page in each case using the user control.

• 应用程序根目录
  
  
  
  • 控制
    
    
    
    • 用户控件与GridView控件
    
    
    
    
    • 的Default.aspx
    
    
    • Edit.aspx
    
    
    
    
    • 的Default.aspx
    
    
    • Edit.aspx
    
    
    
    
    • 的Default.aspx
    
    
    • Edit.aspx
    
    

    请注意：正在使用的文件夹，确保用户具有正确的角色

    Note: The folders are being used to ensure the user has the correct role.

    我需要能够以设置HyperLinkField字段和NavigateUrl为超链接DataNavigateUrlFormatString解析为Edit.aspx页中的相应文件夹中。

    I need to be able to set the DataNavigateUrlFormatString for the HyperLinkField and the NavigateUrl for the HyperLink to resolve to the Edit.aspx page in the corresponding folder.

    如果我设置的导航网址为Edit.aspx在浏览器中的网址显示为
    'HTTP：//应用程序根目录/控制/ Edit.aspx不管始发目录

    If I set the navigate URL to "Edit.aspx" the URL in the browser appears as 'http://Application Root/Controls/Edit.aspx' regardless of the originating directory.

    作为路径必须是相对于当前页面，而不是应用程序根目录。

    I can't use the Web application root operator (~/) as the path needs to be relative to the current page, not the application root.

    我如何使用在多个文件夹相同的用户控制和化解URL到另一页在同一文件夹？

    How can I use the same user control in multiple folders and resolve the URL to another page in the same folder?

    注意：这个问题是基于强烈关闭的 azhar2000s上的ASP类似的问题。网论坛我的问题相匹配。

    Note: The question is strongly based off a similar question by azhar2000s on the asp.net forums that matches my problem.

    推荐答案

    虽然打字这个问题，我碰到一个可能的解决方案来，并进一步修改这个从@Thomas使用反馈。

    While typing up this question I came across one possible solution and have further modified this using feedback from @Thomas.

    修改<一个href=\"http://msdn.microsoft.com/en-us/library/system.web.ui.control.ap$p$plativetemplatesourcedirectory.aspx\"相对=nofollow> Control.Ap prelativeTemplateSourceDirectory 改变由控制产生的相对路径。我已经将其设置为根相对虚拟路径的当前请求夹。现在，在该用户的任何相对路径与相对于被请求的页面，而不是用户控制路径。

    Changing Control.AppRelativeTemplateSourceDirectory alters the relative paths produced by the control. I've set it to a root relative virtual path for the current requests folder. Now any relative paths in the UserControl with be relative to the requested page rather than the user controls path.

    //Page Load Event for the User Control
    protected void Page_Load(object sender, EventArgs e)
    {
        string rootPath = HttpContext.Current.Request.ApplicationPath;
        if (!rootPath.EndsWith("/"))
        {
            rootPath += "/";
        }
    
        Uri requestUri = HttpContext.Current.Request.Url;
        string folderPath = requestUri.AbsolutePath.Remove(0, rootPath.Length);
        string lastSegment = requestUri.Segments[requestUri.Segments.Length - 1];
        folderPath = folderPath.Remove(folderPath.LastIndexOf(lastSegment));
    
        AppRelativeTemplateSourceDirectory = "~/" + folderPath;
    }
    

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