some of the xelements within the query were calling for tags that didn't exist in the original xml, heres a simple example of what i mean.
element = _
<xml>
<object>
<string>someString</string>
[code]....
So how do i change the querry so that it wont produce a null error if the tags asked for are not present.
I've become undone when trying to convert xml linq query result to a datagridview (see code below), needing some pointers,.
Dim doc As XDocument
doc = XDocument.Load("C: empxmltest.xml")
Dim query = From c In doc.<quotefile>.<quote> _
[code].....
I'm working on a .NET application (VB 2008) that gets all of its data from a web-based Django application.I'm using Linq-to-XML and Linq-to-objects in the app.One API call is giving me XML data in the following format that I am loading into an XDocument.
[Code]...
I have the following piece of XML:
<xml>
<ObsCont xCampo="field1">
<xTexto>example1</xTexto>
[Code]....
How do I (using linq) get for example what is inside the xTexto tag that has as parent the ObsCont with the xCampo attribute "field2" ?
how to search XML trees with LINQ using VB.net. I've found some very helpful posts for C#, but none for VB.net?How would I use LINQ to XML to get the value from example XML Getting a set of elements using linq How to get elements value with Linq To XML I want to get the inputlocation for the process where name = "MyProcess1" Based on the example links above, I have been trying code like this:
Dim inputLocation As String = xdocument.Descendants("Configurations").Descendants("process").First(Function(c) c.Element("name").Value = "MyProcess1").Element("inputLocation").Value
But the code is not returning any values. here is the xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Configurations>
<process>
[code]....
I would like to get the first N groups elements with Linq of a ObservableCollection, an example trying to get the first 2 groups:
Data example:
GROUP1 item1
GROUP1 item2
GROUP1 item3
GROUP2 item1
[code]....
I have this XML
<?xml version="1.0" encoding="utf-8"?>
<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="[URL]" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="[URL]" />
<xsd:element name="root" msdata:IsDataSet="true">
[Code] .....
And I also have this method, where I take two files and take some values from them, and then I merge all the values into an object in the second query:
Public Shared Function RetrieveTranslation(ByVal filefrom As String, ByVal fileto As String) As List(Of clsTranslation)
Dim valuefrom = (From l In XElement.Load(fileto).Elements("data") Select l.Element("value").Value).FirstOrDefault
[Code] .....
So, the problem is that when I run the code, there is an "Sequence contains no elements" error in the first query(valuefrom). I debugged and it says that there is nothing in the query, but I don't understand why? I'm curious to know if it is well done to do something like I did, create an object from two queries, putting the first value in the second query.
I am working on a project that will entail connecting to a SQL server. I have been looking at different ways of doing this, and was attempting to connect via Linq to SQL, but found that when I click on the Project menu, and select Add New Item, I do not have anything regarding Linq in the templates.
View 6 RepliesI'm having trouble adding child elements to the below
<securities>
<security id="040104JC6">
[code]....
I'm really struggling with this. I have two XML files. The first one has items, and then sub elements for properties:
[Code]...
I am trying to convet the following code from C# to Vb using 3.5 framework.Here is the code in C# that I am having trouble with.MethodInfo mi = typeof(Page).GetMethod("LoadControl", new Type[2] { typeof(Type), typeof(object[]) });
I thought it would be like this in VB;Dim mi As MethodInfo = GetType(Page).GetMethod("LoadControl", New Type(2) {GetType(Type), GetType(Object())})
but I am getting the following error "array initializer is missing 1 elements"The other line that I am having trouble with and getting the same error is control = (Control) mi.Invoke(this.Page, new object[2] { ucType, null });
[Code]...
Is there any way to use a LINQ to XML to query an XML document like the one below to create new (anonymous or strongly typed) objects from the child elements of a descendant? Here is my XML document:
[Code]...
I have the following XML which I load via XDocument.Load(uri) or XElement.Load(uri). I am having trouble getting a collection of <asset> elements via LINQ.
Here is a snippet of the XML I'm trying to query:
<assetCollection xmlns="tag:aisle7.net,2009:/api/1.0">
<title>All Assets</title>
<description>Collection containing all assets in the system</description>
<resourcePath>/us/assets/~all</resourcePath>
[Code] .....
I have got an xml document which looks something like this.
<Root>
<Info>
</Info>
<Info>
[Code]...
How can i write a linqToXML query so that it returns me an IEnumerable containing each child element, in this case all five child elements of , so that i could iterate over them. The order of child elements is not definite, neither is number of times the may appear.
I recently downloaded VB2008 express. Iam trying to create a link to an SQL table, but the LINQ to SQL class is missing in my add new item menu. is there another way to grab data from a database without using the LINQ to SQL?
View 1 RepliesI created a method and pass the element type, id, and any inner text that instantiates a new html element. The last statement: Me.Controls.Add(element) adds it to the end of the page, but I would like it to be inserted in a specific position (between 2 divs within a form). What I am describing is very similar to this post on SO here, although it was for javascript.
View 1 RepliesThere are 6 buttons have the same name in page i wantto click 3th button this code works:
WebBrowser1.Document.All.GetElementsByName("bid").Item(2).InvokeMember("click")
but this doesnt work :
WebBrowser1.Document.All.GetElementsByName("bid").Item(TextBox1.text).InvokeMember("click")
it gives error while debugging
after that, I try to add crystal report 2008 component to VB.net .By right click on toolbox choose items and checked crystal report viewerIt doesn't seem works, there is no crystal report 2008 component on toolbox
View 17 RepliesHow can I do it without using WebBrowser and get it to an array of HtmlElement?
View 7 RepliesI have an xml document and I want to read the elements from it.Here is what I have:
<my:assetTracking xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:my="http://schemas.microsoft.com/office/infopath/2003/myXSD/2005-10-21T21:12:27" xmlns:xd="http://schemas.microsoft.com/office/infopath/2003">
<my:employee>
<my:employeeName></my:employeeName>
[Code]...
I am getting the missing operator error with this, could you help.
Dim s As String
If ListBox1.SelectedIndex >= 0 Then
s = " WHERE SalesRep = '" & ListBox1.SelectedItem.ToString & "'"
End If
If ListBox2.SelectedIndex >= 0 Then
[Code]...
I have some combo boxes on a form and I want to add some elements into them . Practically I have to add "1" , "2" ..... "100" .
I can use this code :
ComboBoxMY.Items.Add("1")
ComboBoxMY.Items.Add("2")
...
ComboBoxMY.Items.Add("100")
but this will take too many lines . Of course I can accept that , but I just wonder if I could write them with less code .
I am trying to format xml entries I have so that I can use the xmltextreader without getting errors. I added a default header and footer in the event I notice there is no opening or closing tags. I remove illegal characters and check for unicode but I always find an issue where an entry slips in and gives the error: data at the root level is invalid and when I check that entry is slipped through the cleaning process or just has an unmatched tag somewhere.
Now I use
Dim stringSplitter() As String = {"</entry>"}
' split the file content based on the closing entry tag
sampleResults = _html.Split(stringSplitter, StringSplitOptions.RemoveEmptyEntries)
To split my xml into individual entries before I start the cleanup process.
Here are my default headers:
Private defaultheader = "xmlns=""[URL]"""
Private headerl As String = "<?xml version=""1.0"" encoding=""utf-8""?>" & vbNewLine & "<entry " & defaultNameSpace & ">"
Private footer As String = "</entry>"
Is there any tool in the .net framework that can detect and cleanup unmatched tags so that I can get this to work.
Just a quick questio with what I'm sure will recieve an incredibly simple answer.Problem: After saving and restarting Vb the project I am working on seems to lose design view. In the 'view' drop down menu where you would see 'code menu f7' 'design view shift + f7' I only see the code view and not the design view. The tab for my project which would normally say form1.vb (design) now only says form1.vb. The coresponding window for that tab does not show the GUI I had created just a blank white page.
View 8 RepliesI've just set up Visual studio 2003 on a new machine, and I'm not getting the tooltips appearing when I hover over variables in debug mode.Strangely enough, I've also just installed VB6 on the same machine, and I'm getting the same problem on there.
View 1 RepliesOk, so, as you know [or not], I've been working on a custom file format,I have a basis code down. I've modified it to something a little different.The problem is not in the saving, which works just fine. It's the loading.Here's the ENTIRE
vb.net
Imports System.IO
Imports System.Text.Encoding
[code]....
Dim Document = XDocument.Load(FileName)
Dim findElement = Document.Elements("GradeProfile")
[code]....
I have the following code in my application which gets the attributes "name" and "id" of all the html elements on a web page.
[Code]....
What I would like to do is place the returned results into a 2 column listview control with the name attribute in the first column and the id attribute in the second column. After searching the internet the only good example I could find is on the msdn pages but this only shows how to add a known set of items so I could not figure out how to convert this to work with variables.
I'm trying to create a treeview in a VB 2008 project that shows all the elements and attributes of an XML Schema.The MSDN documentation for XML schemas seems to imply that by loading the schema into an XMLSchemaSet and compiling it I should get access to all the elements and attributes with their values but this doesn't seem to work in practice.
Using a for loop such as:For Each elem As XmlSchemaElement In compiledSchema.Elements.Values
I can use elem.Name to get the element name (and attribute name with a similar nested loop) for a simple type but this doesn't work for a complex type.Whenever (and however) I try to get values for complex types I hit a brick wall.
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I have VSTS 2008 SP1 with Extensions for SharePoint Svcs 1.3 running on Windows Server 2008. I VB Class Library project and I am trying to add a new CSS file to the project. My instructions were to use Add New Item and use the Stylesheet Template. But I do not see any such installed template under the categories.Where do I find this CSS Stylesheet template for VB porojects and install it in VSTS 2008 ?
VSTS 2008 installed products:
Microsoft Visual Studio 2008
Version 9.0.30729.1 SP
[code]....