Accessing AppSettings and ConnectionStrings from DesignTime RSS

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  demi

  Member

  22 Points

  8 Posts

  Accessing AppSettings and ConnectionStrings from DesignTime

  Nov 02, 2005 01:54 PM|LINK

  I'm writing a server web control that needs to access the web.config file.  Specifically, the AppSettings (ConnectionsStrings would be nice to). 
  
  I tried using WebConfigurationManager.AppSettings, but it doesn't work in designtime.  I had read the ASP.NET 2.0 added the ability to do this, but I can't figure out how.
  
  Also, Is there any equivalent of doing a Server.MapPath() during designtime.  My control need access to a configurable scratch folder.  At runtime, I use a virtual directory, but at designtime, I can't figure out the physical location of the virtual directory.
  
  Thanks,
  Mark DeMichele
  • Moved by SGWellens on Nov 30, 2009 05:45 PM
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  demi

  Member

  22 Points

  8 Posts

  Re: Accessing AppSettings and ConnectionStrings from DesignTime

  Nov 03, 2005 01:26 PM|LINK

  Well, I think I answered my own questions.  Here's the test code that I put in my custom control.  In order for the MapPath one to work on virtual folders that you created in IIS you need to open your project using http://localhost/myproject, and not use the file system method.  This code was tough to figure out.  I hope it helps someone.
  
  

          private String MapPath(string name)
          {
              if (Page != null && Page.Site != null && Page.Site.DesignMode)
              {
                  IWebApplication app = (IWebApplication)Page.Site.GetService(typeof(IWebApplication));
                  if (app != null)
                  {
                      IProjectItem pItem = app.GetProjectItemFromUrl(name);
                      if (pItem != null)
                      {
                          return pItem.PhysicalPath;
                      }
                      else
                      {
                          return "URL not found in project";
                      }
                  }
                  return "Can not get IWebApplication at DesignTime";
              }
              else if (Page != null)//Runtime
              {
                  return Page.MapPath(name);
              }
              else
              {
                  return "No page to map path from";
              }
          }

         
          private String GetAppSetting(string name)
          {
              if (Page != null && Page.Site != null && Page.Site.DesignMode)
              {
                  IWebApplication app = (IWebApplication)Page.Site.GetService(typeof(IWebApplication));
                  if (app != null)
                  {
                      Configuration config = app.OpenWebConfiguration(true);
                      if (config != null)
                      {
                          return config.AppSettings.Settings[name].Value;
                      }
                  }
                  return "Can not get AppSettings at DesignTime";
              }
              else //Runtime
              {
                  return WebConfigurationManager.AppSettings[name];
              }
          }