Adding Namespace Attribute To XElement - Prevent Blank/empty Namespace On Child Elements?
Mar 17, 2011
I need to read an xml document from a database record into an XDocument object in order for it to be deserialized. So that the deserialization will work, I need to apply a specific namespace to each of the level 1 elements. So XML looks a bit like this:
[Code]...
How do I prevent the blank/empty namespace being added to each child element of the element to which the required namespace has been applied?
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Nov 4, 2011
I am using XElement to manipulate my xml file: to find target node and then add child node to it. But now I have one problem. Let's say my xml file looks like this:
<Report xmlns="MY_NAMESPACE"
<Width>100</Width>
<Height>100</Height>
[Code].....
The second <ReportItem> is the newly-added one, but sadly this is not a valid file (my parser is complaining in the further processing of xml file). So how can I make this new item look exactly like the existing one, without any namespace? This has been driving me crazy. I spent a whole day to figure out that I need to add the curly brackets so that it will find the target node (it doesn't work like what the link above says that it adds and searches the default NS automatically), but now it adds something unnecessary?
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Feb 25, 2010
If a node belongs to a namespace, it's children by default belong to the same namespace. So there's no need to provide an xmlns attribute on each child, which is good. However. If I create two nodes like this:
[Code]...
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Aug 28, 2011
I've been having fun with the xmldocument class recently but am struggling with namespaces. I've been trying (with some success) to merge parts of one XML file into another. The problem has been that one of them utilises a namespace on one of the interior nodes and therefore my xpath queries where failing when I tried to create a nodelist. This I fixed (after reading some great examples here) by adding a namespace manager and changing my query accordingly.
Everything looked fine initially and I appeared to end up with the desired effect, but the XML file that was created was failing in the target application. What I didn't realise at first (due to the length of the xml node values being wider than my screen!!) was that when I imported the nodes from one file to another, a blank names space was being added to the end of each node (xmlns="")
' load the xml template from the project resources
Dim fdf As New XmlDocument
fdf.LoadXml(My.Resources.fdf_template)
[Code]....
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Mar 6, 2012
I would like to add a XElement into an existing XElement as a child
Dim myDocument As New XDocument
myDocument.Declaration = New XDeclaration("1.0", "utf-8", "no")
myDocument.Add(New XComment("XComment"))
[Code]....
What is the best way? There will be at least one rule but there could be as many as 4 total.
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Jan 20, 2009
I'm using VB 2008 and I'm trying to add a xmlns="mynamespace" attribute to an XDocument's root element.The XML document is created by a 3rd party, and I have loaded it into a VB XDocument object. As it comes, it has no namespaces. I have been working on a local copy and I added in a namespace in a text editor, so that I can use the XMLToSchema in VB to enable intellisense etc, as per the instructions in the Beth Massi vids at MSDN. Now the rest of the code works I want to open the live documents again. Without the namespace, my XML literals don't resolve.I've tried unsuccessfully to add in the XMLNS property to the root tag using a few methods, and the nearest I got was the following three code samples.
Dim myNS As XNamespace = "urn:nbf:namespacename"
myXML.Element("nameofrootelement").Add(myNS)
^^^^ The namespace was added as the value of the root element, not as an attribute.
XML.Root.Add(New XAttribute("xmlns", "name"))
^^^^ Generated the error: Run-time exception thrown : System.Xml.XmlException - The prefix '' cannot be redefined from '' to 'name' within the same start element tag.
but
XML.Root.Add(New XAttribute("test", "name"))
^^^^ works correctly. Presumably it doesn't like me manually trying to set a reserved attribute? This namespacing seems way too over complex from some of the Googling I've done.I thought to .ToString it, then modify, then .Parse it also, but I wanted a better solution so that it would help me understand it a little better! I did try this though, and as you rightly point out, it affects all the descendants too, so thus it still breaks.
I will be working with multiple XML feeds all produced by different third parties, and I think for simplicity I will be leaving out the namespacing entirely!My own custom parsing function rewrites the third party feeds into one uniformed document, which then gets processed by another routine. I'll be able to add a ns to that intermediate piece of XML which will help when coding the secondary function.
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Feb 10, 2010
I have an VS2008 solution with 2 projects, WebUI and Domain; WebUI references domain. The Root Namespace in the WebUI project is:MyCompany. MyProjectName.WebUI. The Root Namespace in the Domain project is blank. (Namespaces are manually declared for all classes). So everything has been working fine, until I tried to reference a class in Domain via a fully qualified path: [Code]
Does this make any sense? So, then I cleared my WebUI Root Namespace, and voila, the fully qualified declaration then does work. However, doing this then seemed to invalidate the registration of all my user controls on my pages. The only thing that seemed to solve this was in the codebehind of each user control, manually add a namespace of MyCompany.MyProjectName.WebUI. which might make sense as perhaps the namespaces of the pages somehow had still retained the root namespace value. But, if I was to create a brand new aspx page and drop a user control on (this is before manually adding the namespace), even that page couldn't properly register it. Yet, the user control properly rendered in design view. so the VS UI seemed to be able to properly resolve it, but the compiler seemingly can't.
So from what I can tell, I can at least get things to work by manually wrapping user controls in the proper namespace. Why this is necessary for aspx pages, that have no namespace specified, to see the user controls, seems to make no sense. Is there some fundamental principle I am misunderstanding??
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Apr 26, 2012
I am building a tool that takes an XML document and replaces XML nodes with a different XML node using .ReplaceChild. This all works great. The nodes get changed to the proper nodes. Where I seem to be having an issue is that the new node is inserted with an xmlns="" attribute, which I am not specifying for it to do, nor do I want as an attribute. How can I stop the ReplaceChild from inserting this as an attribute, or am I going to have to remove the attribute after the node is replaced?
Dim imgSrcNode As XmlElement = xmlDoc.CreateElement("img")
Dim imgSrcAttr As XmlAttribute = xmlDoc.CreateAttribute("src")
imgSrcAttr.InnerText = "./art/" + imageName.Substring(0, imageName.LastIndexOf("."))
imgSrcNode.Attributes.Append(imgSrcAttr)
mmlNode.ParentNode.ReplaceChild(imgSrcNode, mmlNode)
Resulting XML change:
<img src="./art/equJI161298_1" xmlns="" />
XML change desired:
<img src="./art/equJI161298_1" />
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Jan 29, 2012
Imports System.Windows.Forms
ERROR : 'Namespace' can occur only at file or namespace level
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Apr 10, 2010
The type or namespace name 'Messaging' does not exist in the namespace 'System' (are you missing an assembly reference?)
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Nov 16, 2011
This class is located in the namespace Acme.Infrastructure.Interface.A class with the same name EventArgs exists in the System namespace.In another project in my solution I have a class Acme.BusinessModules.MyModule.MyClass.When attempting to use the EventArgs class I have to fully qualify the class name or the compiler thinks I am using the System.EventArgs class.My understanding of namespace resolution was that the compiler would first look for the class in the current namespace, and then its parents. It seems that the compiler checks in System before it checks in sibling namespaces. Is it correct that System is checked before the sibling? Or is this behaviour caused by other issues (Imports order?)?
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Jul 31, 2010
I am trying to use xml documents to store data for a movie database, but am having an issue
here is the code I am using
Imports <"...movies.xml">
Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
[Code]....
Why do I get that xmlns = "" in the movie parent node?
Of I remove the parent node from the movieAdd variable it puts xlmns = in all the nodes
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Dec 8, 2011
I am getting this error,here is my code.
Public Class Sample2
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)Handles Button1.Click
[Code]....
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Apr 19, 2011
I'm trying to add the Compatibility.VB6 namespace in some of my VB.NET Programs (using 1.1 framework, 2003). It was added in one of my programs because of a migration wizard but i can only use these commands in that particular program. How would I add that to the others?
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Jan 24, 2011
I'm writing a piece of software that accepts XML from our clients. The xml has2 parts, a standard part that contains set fields, and a freeform part that allows our clients to add own their own xml
<OverallDocument>
<SetFields>
<name>Jon Doe</name>
[Code].....
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Feb 23, 2010
I have an array x in size of objects (between 1 and 100) and I want to increase the size to 101 ... I've resized the array and that adds the objects but unfortunatly (not suprising) the added items have not been initialised, do I've reverted to using a do while loop and adding the elements indiviually, but looking at the code around it where addrange is used extensivily, I was just wondering if that was a neat vb.net way of doing the same thing
Bit of a learning question, just looking for neat ways to do the same thing
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Dec 20, 2010
I'm working with a class that inherits the XElement class.The new class is called MXElement.It adds some new functionality to it for navigating through the XML tree, as well as some more information regarding attributes, but that's not particularly important.My problem is that I have an XML Tree filled with XElement objects.However, when I create a new MXElement object from the XElement object before, it is just a copy of that object. This means that any changes that I make to this object will not effect the original tree.I suppose what I'm asking for is a way to build in the functionality for my MXElement class and keep references to the original XElement objects.If possible, I would really prefer to keep MXElement a child class instead of building a lot of extension methods for XElement.
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Jun 16, 2006
add a prefix to the SoapHeader Namespace.
The XML would look like this
<soap:Header>
<aaa:TocHeader aaa:role="ADMIN" aaa:locale="en-US" aaa:softwareName="TOC" aaa:softwareId="aaaaaaaaaaa" xsdVersion="1.0" xmlns:aaa="http://toc.schemas.testing.com/headers/2006-02-01">
<aaa:Message>
[Code]...
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Jul 23, 2010
When adding a new item (class, control, etc) in C# it will automatically add a namespace to the file depending on the location in the project.
Is this also available for VB.NET?
The code 'Namespace DataClasses.AX' and 'End Namespace' would be generated.
Namespace DataClasses.AX
<Serializable()> _
Public Class AxInventItem
[Code].....
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Mar 2, 2010
Scenario:A widget developer codes using HTML and javascript.my vb.net application allows developers to create widgets for other users.in javascript you can call window.external to comunicate with the host windows scripting object and I would like to add a helper namespace with many functions to aid the development of widgets similar to windows sidebar's System namespace.
Problem:So I could allow developers to use Window.External.System but how can I just allow them to access System directly without using Window.External?Microsoft adds a System Namespace to windows sidebar gadgets host window which is just an internet explorer server window.
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Mar 16, 2012
I'm attempting to create a bound WPF control; when I add a local namespace to the UserControl, I get strange output from the compiler. The header of the UserControl follows, with the offending line highlighted.[code]When that line is present, the compiler generates the following in the output:[code]
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Sep 27, 2010
I am working on a solution that does not name namespaces in code files. Instead it uses the root name space of the project (which is the same across all assemblies). Basically there is only one implicit namespace.
Well, I am trying to isolate some code so that I can run FxCop against it. I explicated named the code file with a namespace to do this. This works for FxCop, but it bricks the entire solution.Visual Studio is now asking me to prefix all uses of the implicit namespace with Global. So instead of:
[Code]...
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Oct 11, 2010
I'm trying figure out if this is possible. Basically, I need to create an XElement and then add one or more siblings to that XElement, but without a parent. I'll add that list of XElements to a Parent later, but need some flexibility in building this and other lists of XElements before doing so. Is this possible?
So I would have something like:
Public items As XElement = <ItemA>Something</ItemA>
And then I need to add an element so that the result looks like:
<ItemA>Something</ItemA>
<ItemB>Something Else</ItemB>
That result is what I need to pass around as a single object. I've messed arounnd with IEnumerable(Of XElement), but there is no .Add.
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Dec 22, 2009
Im trying to add a Xelement to an XElement. But when I tried to add this XElement to the empty XElement VB throws "Object reference not set to an instance of an object" The Bold line code throws the exception
here the sample code: Private Sub Button_OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button_OK.Click
[Code]...
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Feb 3, 2011
As I say, I've got an application which I'll refer to as "AppName" (note the upper case 'A' and 'N') which, for example, attempts to reference "My.Application.Info.ProductName". Adding a breakpoint and putting a QuickWatch on that call shows the error:
[Code]...
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Jun 10, 2011
I am trying to parse incoming data from a serial port that appears to be XML format but an exception is thrown when I switch from a simulated setup to the real deal.My program runs great in a simulated setup but when I try it out on the real device I get: XmlException was unhandled Unexpected end of file has occurred. The following elements are not closed: li840 line 1, position 9.The li840 tag is my root tag and the position never seems to get past 40. I've tried using a try catch block but in my in both my simulated and real setups my values are blank but the program will run without exceptions. Should I take my received data and put it into a file and then read from the file? or is there something else I can do to make this work properly? [code]
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Apr 25, 2011
I've been developing a Vb.Net app lately, and I'm trying to make it as lightweight as possible (ie make the binaries as small as possible).I've done all the trivial stuff, but while browsing the binary with ILDasm, I noticed that it has a My namespace, with a lot of methods, although I don't use any of these in my program. It seems that there are default Get/Set methods for every form, and other methods.Or, can you show me a use case for the methods bundled by default in the binary? PS: I guess it's not going to make a huge difference in binary size: I'm just asking this out of curiosity; why would the compiler bundle useless methods in every binaries? Perhaps I'll learn that these methods are actually used somewhere under the hood.
PPS: Here's a minimal example:
Module Test
Sub Main()
End Sub
End Module
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Jan 27, 2011
Using VB.net, I have a namespace which I'd like to rename for the future. However, I'd also like to keep the old obsolete namespace for a time to ensure backward-compatibility for our consumers for awhile. Is there a way in .NET to have two namespaces, one ordinary and one that merely is an alternative name for the other?
[Code]...
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Jul 20, 2010
I am trying to work out an example from ".NET Domain Driven Design with C#", which contains a code example where you can see declared some attributes of type DelegateCommand. Now, I've tried googling it up, but I can't find its reference anywhere on MSDN (actually, I found this article, but not DelegateCommand's article itself). Is the DelegateCommand something that's part of WPF or is it just something created in the book?
[Code]...
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Jul 13, 2010
why use of namespace and use keyword and declaration of namespace
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