Parsing Xml File With Nested Nodes Using Xmlreader And .net?
Dec 29, 2011
I am trying to parse this xml file, which has some nested nodes. I don't know how to put the xml file content that looks neat here. if you can tell me how, that would be great too.And this is my code. I am able to retrieve some info, but some of them is not correct (strGrant has values that is supposed to be for strSupport).
Dim strGrant, strSupport, strDatabank, strWeight, strNumOfGrants, strNumOfSupports, strNumOfDatabanks As String
While XmlReader.Read()
Console.WriteLine("{0}: {1}", XmlReader.NodeType.ToString(), XmlReader.Name)
[code]....
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Jul 18, 2012
I am new to this forum so please be patient with me :-) My problem is how to bring a nested XML structure into a single DataGridView. The XML looks like this:
[Code]...
All I would like to do is populating a DataGridView with 4 columns (Name, Age, Language and Artwork). Each of which containing its appropriate value whereas the latter will contain all pictures... See what I mean?
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Jul 12, 2011
I am trying to add some items to a TreeView Control:
TV1.Nodes.Add("key1", "Test1") 'Works
TV1.Nodes("key1").Nodes.Add("key2", "Test2") 'Works (Nested)
TV1.Nodes("key2").Nodes.Add("key3", "Test3") 'Error (NullReferenceException)
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Jun 22, 2010
I need some help figuring out how to parse an XML file in VB.net so I can find a particular node and write the contents into a database. Basically all the data in the XML node below needs to be read into an object.[code]I've had some success playing around with some Linq code, but I'm not able to figure out a way to traverse the sub nodes, so I can read them into an object.[code]
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May 7, 2009
writing to an xml file. I am using code i got from a faq off this site which works great with the exception being it does not allow you to append records to the file. it over writes the original record.
[Code]...
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Feb 21, 2012
I have used the FileStream class with the XmlTextWriter in the past without issue but here I'm using the XmlReader from a WebResponse. I need to the complete contente of the XmlReader dumped into a file. I have the file setup as a streamWriter but I just can't seem to get the content of the XmlReader to the file. I just keep getting a 0KB file.
If FirstDataHttpRequest.HaveResponse = True Then
'Put the response into a stream so that we can create a reader
Dim ResponseStream As Stream = FirstDataResponse.GetResponseStream()
[Code]....
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Mar 21, 2012
Pretty much the only thing I have changed is created a loop because I have one xmlstring and want to break it up and create tif files from it(which it actually does do).My problem is this: readbytes inside the while loop throws an exception at the last time through the loop that says I have an "unexpected end of file; the following elements are not closed" and lists them
[code]...
So there are tags left open after the readtofollowing("image"). I tried catching the exception to no avail, tried to read until eof, no avail. I dont really need elements to be closed, I just need to continue because I created files using whats in the image tag.EDIT: I think my xmlstring is going to have times where it will be too big to do a parse without slowing down too much.../parsing binary data?
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Jul 17, 2011
I'm using to code below to write and read an xml file. Writing works fine, but I get an error message on the"XMLReader.ReadEndElement()" line when an element is empty.'Element' is an invalid XmlNodeType. Line 4, position 6.XMLReader.IsEmptyElement is probably what I should use, but after reading the documentation, looking at an example and playing around with it for a while, I'm still not sure how to use it. No matter what I try, it still keeps showing an error on that line. This is the xml file.
<?xml version="1.0" encoding="utf-8"?>
<Data>
<Storage />
<Time>08:30</Time>
</Data>
[code].....
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Aug 31, 2011
I'm all new to this treeview business. I have a fixed treeview, very simple and basic. Only two levels, parent and child nodes. I just need two things out of this treeview.
1) If parent is checked, check all child nodes.
2) If just one child node is unchecked, uncheck parent node.
That's it! I've been looking for this for 30 mins and I cant find it. Maybe because my vb.net is old, it doesnt seem to be the same as others =/ I'm using vb.net 2003.
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Dec 15, 2011
I have a problem with my treeview. I have two child nodes with different parents which contains a literal (*x). In this case (*1) (view image)
[Code]...
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Jun 2, 2011
I have the following code that adds the elements from between the <movie></movie> elements to a listview box.Private Sub ParseMovie(ByVal reader As XmlReader)
[Code]...
What I would like to do is make sure that it reads everything instead of using ReadToFollowing. I might add something else to the xml file, such as <release_date></release_date> and I want to make sure I don't have to edit the ParseMovie sub routine. I looked at the members of XmlReader, but I can't seem to get the right methods to do this efficiently. How should I parse every element between <movie></movie>.
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Sep 8, 2011
xmlreader and assigning variables values in .net 2.0?
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Mar 28, 2009
Is the following possible in one XPath expression (see sample below) Select all (span tags of class msg) AND all ((img tags that have a non-empty alt attribute) AND (are NOT located inside a span tag of class msg))
[Code]...
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Dec 16, 2010
I have a treeview that is populated from a HDD folder collection. Its structure is similar to the following (however the structure is dynamic):
My Disk:
|
|--folder1(tag:folder)
| |--subfolder1(tag:folder)
[code]....
I call the sub as follows:
deleteNode(treeview1.Nodes(0).Nodes)
However, the above is not working properly. It deletes only some nodes and not all the targeted nodes.
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May 29, 2012
I have an xml file that looks like this:
[Code]....
I can get the repname and repid, but am not getting the customer list with custname and custno. What am I doing wrong?
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Mar 5, 2009
I would like to be able to parse vb.net code files, so I can examine the collection of Subs, Functions (and their contents, including comments), private variables, etc. I can be open the actual source code files. So for example, if I have:
[Code]....
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Apr 18, 2012
I am writing an application that will be used to extract information from any one of three different database applications, depending on the option selected. I would also like it to be possible to run it against one of several environments (e.g. development, test or live).
I plan to hold the relevant logon details (in encrypted form, of course) in the app.config file, with the appropriate details selected depending on the environment and application. Rather than have each option hard-coded into a Select Case statement, I want to be able to nest the variables in the app.config. I had envisaged a section of the config file looking like this:
[Code]...
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Aug 21, 2011
I'm trying to do some simple XML manipulation by searching one XML file for a set of nodes and inserting them into another XML file at a specific location.I'm able to succesfully create a node list from one of the files using the following xpath statement [code].....
I'm struggling to see how I can easily select any node I want within the first XML file but the second file refuses to play ball! I've attached the second XML file should anyone wish to check that I've interpreted the structure correctly.
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Aug 18, 2009
I need to be able to delete some XML nodes from an XML file but i'm not quite sure how. I need to delete all entires in the second <Launch.Addon> node but it won't always be the second entry. There may be other nodes before it.
<SimBase.Document Type="Launch" version="1,0">
<Descr>Launch</Descr>
<Filename>exe.xml</Filename>
[Code]....
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Sep 5, 2011
I decided to use XML to handle some of my configuration chores. My XML file looks something like this:
<catagories>
<catagory path= "C: empwyoming" name="Wyoming">
<URL Filename="Picture1.jpg">http://www.domain1.com/pic.jpg</URL>
<URL Filename="Picture2.jpg">http://www.domain2.com/pic.jpg</URL>
[code]....
I'm wanting to manage this list in my program. Currently, I have written code to read the catagories into a combo box, and once a catagory is chosen, I can read the children URL nodes into a listview. I want to allow editing and re-arranging of the URLs in the listview, and I'll have no problems with that. So my question is, what is the best way to dump the listview back to the xml file? You should consider the contents of the listview as a replacement for ALL of the existing children in the XML file.
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Mar 14, 2009
how to add treeview nodes and sub sub nodes using functions
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Mar 16, 2011
I'm creating a vb.net winforms application that will take in user given strings, parse them, and print out labels with variable information. The given string will be used in all the labels, but the variable part of the string will change with each label.
My question is: is it better to parse the strings one time, then store those values in arrays, or to parse the string each time a label is printed? Which will perform better? Which is better practice? What is the proper way to test something like this?
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Nov 3, 2011
I now have a similar xml problem. Now that I can create and add to the file, I only have two more problems to solve.
1) How do I remove all nodes (without starting over from scratch, hopefully)?
2) How can I limit the number of nodes in the xml file?
That should do it (for now at least) until somebody wants some other feature.[URL]..
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Apr 2, 2009
Alright, I decided instead of Serialization or Access, I'm going be using XML files.
Now, I have them properly adding and editing, but I see theirs a property .SelectNodes( )
How do I use this ? I did a quick Google Search, couldn't find much. Here's the current Code I'm using to Edit my Document.[code]...
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Jun 28, 2010
How can I export treeview nodes to xml file in vb.net? My treeview nodes like below:
History
- Date 1
- child 1
- child 2
- Date 2
- child 1
- child 2
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Nov 10, 2010
[Code]...
I am using this to load settings files, but if a piece is missing, then the whole thing fails. What can I use to load each node individually instead?
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Feb 23, 2010
I have an VB ASP.NET (.aspx) file that has deeply nested logic and I'm getting lots of build errors like "If must end with a matching End If" and "Do must end with a matching Loop". How do I begin to debug this beast to at least get it to build?
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Nov 22, 2010
I Have a complex Class Structure that holds a large amount of data in the form of multiple nested arrays that I want to save to a file and retrieve everytime I use my program.. How do I do this? I am using VB10 Express.
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Jun 30, 2010
we are trying to use google to get exchange rate prices. they use a csv file which we get the code to go out and get.what im trying to do is pick the first line of the file and just use that. i have the following code but its not just picking the one line.
[Code]...
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Jan 26, 2012
I am trying to create a program in VB.net to help me fix broken computer systems by parsing log files. I have some ideas but I have only built simple programs previously. I have ideas how to do this but so far my attempts haven't gone so well.Specifically I can either import a txt type file or copy and paste the contents of a txt file into the program and then have it compare what has been posted to a good/bad list then it reprints out what is bad in color coding. Also if their is a way to update the file it uses for comparison by entering in a txt file that would be stellar.
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