The type or namespace name 'Linq' does not exist in the namespace 'System.Xml' (are you missing an assembly reference?)

Hi Fernando

Thanks for helping me ive added reference, right clik the ref in explorer view and then add ref both System.Xml and System.Xml.Linq but it still complaining. What lib shall i take my ref from ( *.dll) from?

(.NET Tab selecting this) C:\Program Files\Microsoft SDKs\Silverlight\v2.0\Libraries\Client\
Or
C:\Program Files\Microsoft Silverlight\2.0.30523.8

 I also have another issue i think ive accidenlty checked the "never ask again checkbox"  that comes up when running  (hit F5) a application. So now VS runs my latest working code. This is really enoying ive looked everywhere cant find how to change back to its original setting.  For example i removed text from page.xaml but its still there when i hit F5.

Best regards

Mattias

Hi kihl71;

OK, now it is not complaining about, "The type or namespace name 'Linq' does not exist in the namespace 'System.Xml' (are you missing an assembly reference?)", correct?

If it is now complaining about Silverlight then add the reference to System.Web.Silverlight in the same way you added the System.Xml.Linq to your project and also make sure you add the using statement to the top of the program file, for example,  "using System.Web.UI.SilverlightControls".

Fernando
 

Hi Fernando

Sorry i  tihink you missunderstood me.
I still have this error "The type or namespace name 'Linq' does not exist in the namespace 'System.Xml' (are you missing an assembly reference?)  I have refs in the project under referense to all the libs and i have the code. "Using System.Xml; and Using System.linq.Xml;" etc In the Page.Xaml.cs

It has never complained about silverlight reference. Im new to this so i just want to know that im using the correct path to the libs (*.dll like System.Xml and System.Xml.Linq) thats why i asked about.  

What lib shall i take my ref from ( *.dll) from, like System.Xml and System.Core etc?
If I choose from .NET Tab this is the path to the libs c:\Program Files\Microsoft SDKs\Silverlight\v2.0\Libraries\Client\
If i choose browse from file i can choose this.
C:\Program Files\Microsoft Silverlight\2.0.30523.8
Which one is correct?

Thanks
/Mattias

Hi kihl71;

You had a couple of Type O's in the below code, correct and try again.

Fernando

XDocument xmlStories = XDocument.Parse(xmlContent);
 
var stories = from story in xmlStories.Descendants("story")
              where story.Element("thumnail") != null
              select new DiggStory
              {
                  Id = (int)story.Attribute("id"),
                  Title = (string)story.Element("title"),
                  Description = (string)story.Element("description"),
                  ThumbNail = (string)story.Element("thumbnail"),
                  HrefLink = (string)story.Element("hreflink"),
                  NumDiggs = (int)story.Attribute("diggs")
              };

                                              

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Hi Fernando

Ive corrected the type'OS i found but dont know if there is any difference cause i fucked up the compile thing. I made a new post on this.

Think ive accidenlty checked the "never ask again checkbox"  that comes up when running  (hit F5) a application. So now VS runs my latest working code. This is really enoying ive looked everywhere cant find how to change back to its original setting.  For example i removed text from page.xaml but its still there when i hit F5. It dont compile my changes.

/Mattias

Hi kihl71;

Is the issue corrected on this question?

Reposted here from your new question.

1. On the main menu click on Tools  
2. Then select Options...  
3. When the Options window opens click on the tree view Project and Solutions  
4. Thefirst check box under the combo box's, "Always show Error List, ifbuild finishes with errors" and place a check mark in that combo box.  
5. Click on OK  

Hi Fernando
Thanks again for helping with compiler. Now it runs smoth again. But i still get 2 errors in my code

Cannot assign to 'DisplayStories' because it is a 'method
and
The type or namespace name 'Linq' does not exist in the namespace 'System.Xml' (are you missing an assembly reference?).

I have this under my References Tree in Solution Explorer,
mscorlib, system, System.Core, System.Net, System.Windows, System.windows.Browser, System.Windows.Controls.Data, System.Xml, System.Xml.Linq

Cant understand why its complains over System.Xml

Thanks
Mattias

Can you zip the project folder with all its files and I will look through it?

If you do after you zip it change the extension of the file to txt so that you can use the Attach File option below.

Sure here it is.

/Mattias

Little problem didnt work when i renamed it. Now Its trippled Zipped 2nd layer has password.

Password = linq

/Mattias

Mattia; you forgot to attach the file to the post.

I see it now sorry.

Hi Mattia;

I have downloaded the application and this is what I have found. When I opened the project in VS 2008 it asked me if I wanted to upgrade the application from .Net 2.0 to .Net 3.5. Seeming that the project was in 2.0 I did not upgrade the web site. I then needed to remove some stuff from your web.config file so that I could compile it. I then started to get the errors you were getting and the reason I was not able to get it to compile was that the Linq dll's for version of .Net 3.5 are not available to the .Net Framework 2.0. In fact in .Net 2.0 the Linq dll were pre release and also were found in different namespace. I then deleted the web site and reloaded your code but this time I was not asked to upgrade so somewhere the system keeps track of the project names. I rename the main folder with a 2 at the end and opened  the project again and was asked if I wanted to upgrade this time I said yes. Made the same mods to the web.config and compiled with no errors and then I ran the web page and it seemed to work.

Try and rename the main folder of the project and select yes to upgrade to .Net 3.5.

Fernando

Thanks now we are on to something, i tried renaming the main folder and when i open i unfortently didnt get any question about upgrading to 3.5. Maybe my installation is corupt or something. Is there another way start a upgrade process on the application from .NET 2.0 to .NET 3.5? Is there a way to test full .NET 3.5 functionallity?

What did you remove from the web.config?

Thanks

Mattias

I added System.Xml.Linq again to the renamed project and i now i only has this error.

Error      1      Cannot assign to 'DisplayStories' because it is a 'method group'      C:\Documents and Settings\mattias\My Documents\Visual Studio 2008\Projects\DiggSampleNew\DiggSample\Page.xaml.cs      34      16      DiggSample

I attach 2 screenshots on my add reference list and the property page.

Hi Mattia;

To convert the project to from 2.0 to 3.5 follow these steps. Make sure to backup your folder before doing this.

1. Go to Solution Explorer and right click on Project name just below the Solution name and select "Property Pages" 
2. In the new window on the tree view on the left select Build 
3. In the Target Framework dropdown list box select .Net Framework 3.5 
4. Click on the Apply button 
5. Click OK 

HI Fernando

Thanks for helping out.

When i was about to convert the project to 3.5 it was allready 3.5. I havent yet tried to remove the lines from web.config. I only get this error now when compiling
Cannot assign to 'DisplayStories' because it is a 'method group'      

/Mattias

Where in the code?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Net;
using System.Xml;
using System.Xml.Linq;


namespace DiggSample
{
    public partial class Page : UserControl
    {
        public Page()
        {
            InitializeComponent();
        }

        void Button_Click(object sender, RoutedEventArgs e)
        {
            //Retrieve topic to search
            string topic = txtTopic.Text;
            string diggUrl = string.Format("http://services.digg.com/stories/topic/{0})?count=20&appkey=http%3A%2F%Fscottgu.com", topic);
            //initiate Async Network Call to Digg
            WebClient diggService = new WebClient();
            diggService.DownloadStringCompleted += new DownloadStringCompletedEventHandler(diggService_DownloadStoriesCompleted);
            diggService.DownloadStringAsync(new Uri(diggUrl));
        }
        void diggService_DownloadStoriesCompleted(object sender, DownloadStringCompletedEventArgs e)
        {
            if (e.Error == null)
            {
               //DisplayStories = (e.Result);
                DisplayStories = (e.Result);
            }

        }
        void DisplayStories(string xmlContent)
        {
            XDocument xmlStories = XDocument.Parse(xmlContent);

            var stories = from story in xmlStories.Descendants("story")
                          where story.Element("ThumbNail") != null
                          select new DiggStory
                          {
                              Id = (int)story.Attribute("Id"),
                              Title = (string)story.Element("Title"),
                              Description = (string)story.Element("Description"),
                              ThumbNail = (string)story.Element("Thumbnail").Attribute("src"),
                              HrefLink = (string)story.Element("Hreflink"),
                              NumDiggs = (int)story.Attribute("Diggs")
                          };
            foreach (DiggStory story in stories)
            {
               StoriesList.ItemsSource = stories;
            }
        }
    }
}


Error      1      Cannot assign to 'DisplayStories' because it is a 'method group'      C:\Documents and Settings\mattias\My Documents\Visual Studio 2008\Projects\DiggSampleNew\DiggSample\Page.xaml.cs      Line:35      Column:17      DiggSample

Now it coompiles.
Thanks a lot Fernando ,for taking time helping me with my problem.

Best regards.

Mattias