xml in web projects | Tech Off

wacko

does anyone know why this would not be working ?


XmlDocument cfgDoc = new XmlDocument();

           
docName = System.Web.HttpContext.Current.Server.MapPath("web.config");

            cfgDoc.Load(docName);

            XmlElement root = cfgDoc.DocumentElement;

            XmlNode node = root.SelectSingleNode("BaseProvider");

the node comes back null, I copied this code into a winforms application and its works fine. I am using the RC bits for VS 2k5.

Sven Groot
You can't have everything; after all, where would you put it?

It would help to see the xml you're using.

gabe19
bang bang shoot shoot

Since you say it works in WinForms, does that mean you are no longer going after the http application context, or did you get context somehow?

I would guess this helps pinpoint the problem; that you are not loading what you think you are loading.

Maurits
AKA Matthew van Eerde

Are you calling this from a page in the root directory? If not you may need to MapPath on "/web.config" rather than "web.config"

wacko

its in the root dir, and it loads the web.config file and finds the root element but after that it comes back as null, if I throw just some random XML file at it, it works fine. Just when I load up the web.config file. just so you can see what is loading up,

<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<configSections>
    <section name="BaseProvider" type="BaseProvider.BaseProviderSection, BaseProvider"/>
</configSections>
<BaseProvider default="Extended Provider">
    <providers>
      <add name="Plugin Manager"
         Enabled="true"
        type="PluginManager.Manager, PluginManager" />
      <add name="Extended Provider"
        Enabled="false"
        type="ExtendedProvider.ExtendedProvider, ExtendedProvider" />
      <add name="Extended Provider 2"
         Enabled="true"
        type="ExtendedProvider2.ExtendedProvider, ExtendedProvider2" />
      <add name="Extended Provider 3"
         Enabled="false"
        type="ExtendedProvider3.FunProvider, ExtendedProvider3" />
    </providers>
</BaseProvider>
<appSettings/>
<connectionStrings/>
<system.web>
    <compilation debug="true"/>
    <webParts enableExport="true"/>
</system.web>
</configuration>

I am sorry for the long bit there, but this same xml in an app.config works just fine with the code in my original post, aside from the web related sections.

thepuffin

wacko wrote:

<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">

There's your problem - the configuration element declares a namespace so everything underneath it will be in that namespace.

You'll need to create a namespace manager and use that when you do SelectNode:

XmlDocument cfgDoc = new XmlDocument();
docName = System.Web.HttpContext.Current.Server.MapPath("web.config");
cfgDoc.Load(docName);

XmlNamespaceManager ns = new XmlNamespaceManager(cfgDoc.NameTable);
ns.AddPrefix("c", "http://schemas.microsoft.com/.NetConfiguration/v2.0");

XmlElement root = cfgDoc.DocumentElement;
XmlNode node = root.SelectSingleNode("c:BaseProvider", ns);

wacko

alright I will try that, but why does it work just fine in winforms ? is it just a webapp issue ?

Sven Groot
You can't have everything; after all, where would you put it?

wacko wrote:

alright I will try that, but why does it work just fine in winforms ? is it just a webapp issue ?

Are you using the exact same xml file in the winforms version? If so, it shouldn't work.

wacko

actually now looking at it... your right it did not have the namespace part... thanks a lot guys for the help Smiley