C# - Get InnerText From XElement?
Mar 19, 2011
I have an XML file I need to parse, but only for the text, not the HTML. Here's an example of a node:
<highlights><![CDATA[<ul style="color:#000000;font-size:small;font-family:verdana,geneva,sans-serif"><li>Classy & elegant purse hooks</li><li>Choose from various styles<br></li><li>Stable and reliable</li><li>Makes a great gift! </li></ul> ]]></highlights>
As you can see, the CDATA has HTML code in it, so when I do element.Value I also get the tags. Is there any simple way to get just the text?
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Apr 19, 2010
Ok the problem is with this Calc.DateLongToDateShort(tempxmlnodelist(j).Item(" _date").InnerText) < Date.Now Then If the innertext is a correct date, then the equation suceeds, however when the innerText is blank, which sometimes it will be, it throws exception cannot convert "" to Date. Now this makes sense of course. I am wondering if there is a "simple" way to avoid this error, without needing to add lines such as:
[Code]...
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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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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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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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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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Feb 15, 2011
I'm building XML based on some data pulled from a database, and thought to try building the XML with LINQ2XML. The data is coming from a few different places, so I've been building the XML by sections, based on what I have populated in DataTable objects. Using the XElements and XAttributes, I can get one or the other, but I was wondering if anyone had insight in how to make the determination of whether to use XElement or XAttribute at the point where the XML is being built.[code]So it's in that LINQ query that I need to determine if ValueToParse, for example, has a valid value (non-empty). If it does, then I can add the node and it's value. If it DOES NOT, I need to add that named node, but with an attribute of 'xsi:nil="true"',The caveats are that that there are some descendants which repeat over different parents (for example, there's an AddressDetails section which contains AddressDetail elements. These AddressDetail elements can contain 0 or 1 Contacts groups of Contact elements, so adding a node to the Contacts node isn't a straightforward option as it would be if there was only ONE Contacts element).I don't usually USE LINQ, but it SEEMED like a good idea at the time XD
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Aug 19, 2010
I am trying to be ablle to click on the following
<a
onclick="displayLoginForm();" href="Javascript: void(0);">Login</a>
I'm not sure how to do this.
is there a way to get an element by innertext then invoke a click
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Aug 11, 2011
Okay so this is my html line with the ID: <id="accounttype" class=inline-block"><strong><?=$_SESSION['accounttype']?></strong><br>this is what it grabs
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Aug 17, 2011
For Each Element As HtmlElement In Browser.Document.GetElementsByTagName("a")
If Element.GetAttribute("class") = "account-points" Then
Pointcount.Text = Element.InnerText
[code].....
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Apr 8, 2011
I have some code in VB.Net that I've been using for years that has been working fine, that is until I upgraded to Internet Explorer 9. The essence of code is below. In IE8 or earler, the code works. In IE9, when it tries to execute Br.Document.Body.innerText (or .innerHTML), I get an exception "Public member 'innerText' on type 'DBNULL' not found." When I add Br to the Watch window and hit + several times to get to inerText, it actually shows the text, but if I add Br.Document.Body.innerText to Watch, it returns DBNull as the value.Because of this problem, I removed IE9 and reverted back to IE8, and the code works fine. Of course, I would eventually prefer to upgrade to IE9, but this bug needs to be fixed first.
Imports SHDocVw
Module Module1
Sub Main()
[code]....
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Jun 8, 2011
I am trying to get vb.net to select a single node by id. I then want get all of the childnodes within the id and place them in to textboxes. see code below:
Xml doc
<Subject>
<Items>
[Code]......
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May 9, 2012
If I take the following XML:
<security>
<user>user</user>
<password>pass </password>
</security>
and call the Trim() method on the InnerText of the password node, it Trims it properly, but If I modify the fragment to look like this:
<security>
<user>user</user>
<password>pass
I can't get the Trim() method to work, pass with the spaces removed is return as pass (It has a single space at the end). I looked at the watch window and when I doubnle click the value, it shows it as:
"pass" & vbLf & ""
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Oct 28, 2011
Whenever I try and get the InnerText of an element using an XmlDocument, it throws a NullReferenceException. Here is the code below:
Dim SetDoc As New XmlDocument
Dim xmlString As String = "<upload><links><bananas>apple</bananas><original>thirteen</original></links></upload>"
[Code].....
The same happens when I load exactly the same XML from file.
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Aug 15, 2009
Is there a way to get the innertext from similar a hrefs from a page on the webbrowser? For example, say that I want to get fuzzy penguin and the numbers after it out of
[Code]...
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Sep 17, 2009
I cannot get the messagebox to show up on my screen when the program checks the text fields on the webpage that says "this is the test".
Here its the code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If WebBrowser1.Document.Forms(0).InnerText = "this is the test" Then
MessageBox.Show("worked!")
End If
End Sub
How to make the messagebox to show up on the screen when the program checks the text fields on the webbrowser by on the webpage?
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Jul 28, 2010
see this codes scrapes all href links and check if it contains "/file/" to save it but I get duplicate links saved so If i can change this code to work some how with Innertext("More") I will have no duplicatestried to configure it to work with innertext it just doesn't fit the way I think it should ;/and if anyone can add how can I remove duplicated urls on my txt file that would be really nice I might need it
Dim links As System.Windows.Forms.HtmlElementCollection
Dim b As String
links = WebBrowser1.Document.Links
[code]....
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Jan 21, 2011
When I try to do:
Quote:
RichTextBox1.Text = Form2.WebBrowser1.Document.Body.InnerText()
RichTextBox2.Text = Form2.WebBrowser1.Document.Body.InnerText()
It says
Quote:
NullReferenceException was unhandled. Object reference not set to an instance of an object.
What's up with that?
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Jun 14, 2009
im trying to complete some data to upload to my site via my program the following code Private Sub Button11_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button11.Click
[Code]...
i have this to basically complete a form i used getelementid but it never completes i think its due to the form type, on my first button in webbrowser1 i have similiar code which logs me in and it works fine although this form is a <form id="form" enctype="multipart/form-data"> form, should this stop me from completing it with .innertext ? due to the enctype? i would also like to be able to user innertext and take it from a TextBox9.text
how do i get around this to complete these values, my code shows no errors it just navigates to the page and dosent complete anything, button1 logins fine and the code is almost identical, except for obvious differences http address etc code edited slightly posted old unfunctional version, this is now what i have, still unfunctional but makes more sense i think
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Jan 24, 2011
When I'm coding:[quote]Form1.WebBrowser1.Document.Body.InnerText()[quote]I want to delete some text from the InnerText(). How Do I do that?
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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 1, 2010
I have an XElement and an XPath expression that selects a node from it. It works fine in the original program that I wrote it in but doesnt work if I paste it to another program. I've checked the references and import statements.
I think the problem might be that the original program had the code within the class of a wpf window while it was moved to a abstract class where it doesnt work.[code...]
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Aug 4, 2009
[code]...
In this case, children includes all the Parent elements and all of the Child elements. What's the best way to grab only the direct descendants of <Root>?
Should I write a LINQ query that selects elements where parent = <Root>? Or is there some built-in method I'm missing that can get this for me?
EDIT: I had some confusion between XElement.Elements and XElement.Descendants. As Ruben Bartelink pointed out, XElement.Elements will give me exactly what I was looking for.
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Mar 6, 2009
I'm reading an XML file that looks like this[cod]...
The resulting List(Of Vehicle) is then bound to an ASP.NET ListView control where the data is rendered. All goes well if all the desired nodes are present. For example, the Mileage node is conditional and is absent sometimes. Whenever the node isn't present I get a "Sequence contains no elements" error.
I've tried everything I know to get things working properly. Is there a way to test if an XElement exists?
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Jun 11, 2009
I am trying to retrieve a value from an xml file via the XElement and pass it on to a function for further logic testing / et al but keep getting an eror: Here is the code I am using
dim path as string = "C:UsersPaulmyfile.xml"
dim doc as xelement =xelement.load(path)
'This is the line that i would like to convert i.e the sdr to string ? dim sdr = from d in doc.descendants("BOOKS") Select d.Value
when I pass the value sdr, I get an error 13 "Conversion from type "WhereSelectEnumerableIterator(Of XElement, String) to type string is not valid. I have also tried to pass it as an object but can not seem to be able to typecast it to string.
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Oct 5, 2010
I am tring to write a for each loop that loops through the descendants of an xml doc but only the ones that satisfy a criteria.[code]...
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Dec 2, 2011
I have two XML files.
Consumers.xml
<consumers>
<consumer>consumer1</consumer>
[code].....
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Dec 22, 2011
I've been trying to read an XML-file using VB.NET and after some (see 2-3 hours) googling and reading I've headed in somewhat the right direction, however now I'm at a stop and I can't find any answers that makes any sense to me.
[Code]...
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Jun 5, 2012
In VB.Net you can easily get the text value of the first child element of an XElement like so:Dim sChildValue = xeParent.<MyChild>.Value()Of course that syntax is not supported in C#, but it produces the same IEnumerable(Of XElement) result as the Elements() method. So we can rewrite the above like so:
Dim sChildValue = xeParent.Elements("MyChild").Value()This Value() extension method is handy because often you are working with small XML documents and you just want the first node that matches. (One thing that annoys me about this method is that it seems to return Nothing/null if the IEnumerable list is empty due to the specified element not being found. To work around this I have created my own ValueOrBlank() method that returns an empty string in that situation instead.)
My problem is that I can't do the same thing in C#:var sChildValue = xeParent.Elements("MyChild").Value(); // won't compile, can't find Value() method
I checked my references/imports and they match the VB.Net project where the same call works. Fortunately I am able to use my custom ValueOrBlank() extension method to accomplish the same thing. But I'm curious as to what's missing in my C# project. I tried right-clicking on the Value() method call in Visual Studio and clicking "Go To Definition" to see if the Object Browser could tell me where the extension method is kept, but it just shows the System.String class. Does that mean this is one of those sneaky VB.Net-only features that the compiler itself supports, like the XML Axis < MyChild > syntax?
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Jun 9, 2011
I have the file xmlcontents.xml with the following content[code]....
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