remove xmlns="something" from xml document using linq to xml

Question

I'm parsing an xml file.

the first line of xml looks like;

<DataSetMenu xmlns="http://tempuri.org/DataSetMenu.xsd">

I'm using below code to parse the xml.

string filename = Request.QueryString["file"].ToString();
XElement xdocument = XElement.Load(Server.MapPath("xml\\" + filename));

xdocument.Attribute("xmlns").Remove();

IEnumerable<XElement> MenuGroups = xdocument.Elements();

sb.Append("<link href='StyleSheet.css' rel='stylesheet' type='text/css' />");
foreach (var xel in MenuGroups)
{

    if (xel.Elements("MenuCatName").Any())
    {
        Int32 MenuCatID = Convert.ToInt32(xel.Element("MenuCatID").Value);
        string MenuCatName = xel.Element("MenuCatName").Value;
        sb.Append("<div class='CategoryDiv'><h1 class='category'>" + MenuCatName + " </h1>");
        GetGroupItems(xdocument, MenuCatID);
    }
}

But when ever xml file's first node contains :

 xmlns="http://tempuri.org/DataSetMenu.xsd"

It doesn't work at all. when i try to access xml's data it gives me error, Object reference not set to an instance of an object

XML FILE

    <DataSetMenu xmlns="http://tempuri.org/DataSetMenu.xsd">
    <MenuCategories>
     <MenuCatID>10108</MenuCatID>
     <MenuCatName>SPEICALS</MenuCatName>
     <BusinessEntityID>20137</BusinessEntityID>
    <DisplayIndex>10107</DisplayIndex>
     <MenuCatDesc />
      <Visible>true</Visible>
      <ImagePath />
   </MenuCategories>
   <MenuCategories>
    <MenuCatID>10109</MenuCatID>
    <MenuCatName>GENERAL MENU</MenuCatName>
    <BusinessEntityID>20137</BusinessEntityID>
     <DisplayIndex>10108</DisplayIndex>
      <   MenuCatDesc />
       <Visible>true</Visible>
       <ImagePath />
    </MenuCategories>
   <MenuGroups>
     <MenuGroupID>110079</MenuGroupID>
    <MenuCatID>10108</MenuCatID>
     <MenuGroupName>SPECIAL OFFERS</MenuGroupName>
     <MenuGroupDesc />
     <Visible>true</Visible>
     <DisplayIndex>0</DisplayIndex>
     <MenuTypeID>1</MenuTypeID>
    <ImagePath />
     <ServiceTimeEnforced>false</ServiceTimeEnforced>
    <ServiceStartTime>1900-01-01T11:00:00-06:00</ServiceStartTime>
     <ServiceEndTime>1900-01-01T15:00:00-06:00</ServiceEndTime>
     <Monday>true</Monday>
    <Tuesday>true</Tuesday>
    <Wednesday>true</Wednesday>
    <Thursday>true</Thursday>
    <Friday>true</Friday>
    <Saturday>true</Saturday>
    <Sunday>true</Sunday>
   </MenuGroups>
   </DataSetMenu>

Give me a solution so that it works fine. Or any way to remove this attribute.

Thanks.

Now It's now working here

 private void GetGroupItems(XElement xdocument, Int32 MenuCatID)
{

    var MenuGroup = from nm in xdocument.Elements("MenuGroups")
                    where (int)nm.Element("MenuCatID") == MenuCatID
                    select nm;

    foreach (XElement  GroupName in  MenuGroup)
    { 
        Int32 MenuGroupID = Convert.ToInt32(GroupName.Element("MenuGroupID").Value);
        string MenuGroupName = GroupName.Element("MenuGroupName").Value; 
        sb.Append("<div class='IType'>" + MenuGroupName + " </div>");
        sb.Append("<table class='restaurantlist'><tbody><tr><td class='righttd'>");
        GetMenuItems(MenuGroupID, xdocument);
        sb.Append("</td></tr></tbody></table>");
        sb.Append("<div class='restaurantlistdiv'><div style='clear: both;'></div>");
    }
}

please tell me, how should i modify this?

Answer 1

You have to specify namespace when you're querying your XML.

Create XNamespace instance:

var ns = XNamespace.Get("http://tempuri.org/DataSetMenu.xsd");

Then use XNamespace + String operator implementation:

public static XName operator +(
    XNamespace ns,
    string localName
)

within Elements() method call, like that:

IEnumerable<XElement> MenuGroups = xdocument.Elements();

sb.Append("<link href='StyleSheet.css' rel='stylesheet' type='text/css' />");
foreach (var xel in MenuGroups)
{

    if (xel.Elements(ns + "MenuCatName").Any())
    {
        Int32 MenuCatID = Convert.ToInt32(xel.Element(ns + "MenuCatID").Value);
        string MenuCatName = xel.Element(ns + "MenuCatName").Value;
        sb.Append("<div class='CategoryDiv'><h1 class='category'>" + MenuCatName + " </h1>");
        GetGroupItems(xdocument, MenuCatID);
    }
}