Parse A Webpage In Program That Is Written With A Bunch Of Document.write's?
Dec 20, 2011
I am parsing a web page with the HTML agility pack in vb.net and it works great most of the time, but I have come across a site I need help with.
When I go to grab the web page with my http object (I am using chilkat http and it does not have a javascript engine) I get back the page which is poorly written with document.writes for basically the entire page.
I do not want to use the browser control to first render the page.
Do you know of anything that will allow me to parse this page easily with xpath... does xpath work with javascript? Is there a way for me to remove the javascript with the agility pack?
Here is a snippet of an XML file that I need to read with VB.NET[code]...
I am familiar with creating a new XmlDocument and using the Load method to read the file. I know how to get a collection of child nodes and loop through them to get elements and attributes. But in this case, I need to extract all of the data between the two "verse" tags (the starting one with the "sID" attribute and the ending one with the "eID" attribute), including the tags and the data in between as one continuous string. I can loop on the nodes, but I only get the "w" nodes and one final "#text" node for the period, but I don't know how to get the spaces and punctuation between the "w" tags.
I have a function that excepts a Message from MSMQ, I convert the body of the message into a string which represents an XML document. I need to parse through the XML document, grab the values from the nodes and process them. I am having problems using either XDocument of the XMLReader, both of them give me the error "Illegal characters in file". Here is a copy of the XML file as it is deserialized from the message:
I am trying to parse a webpage and need to get the data basically the string i am looking for in a webpage looks like thisSomeone lead me in the right direction in parsing the Stuff strings?
The program allows users to insert Documents along with a bunch of their attributes into the program. The documents are stored in a relational database. One of the required functionalities is allowing the user to look for such documents. The User normally search directly for the obvious attributes of the document, like a unique ID, or it's Title. The problem is that from the search parameters is not allways known which ones will the user fill. For example the user inserts the name and version of the deocument, another time the user enters part of the Title and the person that delivered the document, or might just enter the document number and nothing else. Some of the data might even be incomplete, like title, name of the person who created the document and so on. The idea from the person who designed the system (I'm only reimplementing it) was to allow easier searches for the user, and allowing the user to search for more parameters tod with the idea that "the more parameters, the more specific results", since the results are always group of documents instead of single documents.
I am trying to write an app that communicates with a server that was written in C. Not knowing C at all so i have some problems understanding the messages in c-style struct format that i need to send from the vb.net side.
Im am trying to parse a web page for a particular text string, But VB2010 keeps saying there is an error at this part of my code request.GetResponse The guide i was following doesn't explain the error. could some one take a look ?
Imports System.IO Imports System Imports System.Text.RegularExpressions
[code].....
I have tried request.beginGetresponse and request.endGetresponse.
I want to pass an XmlDocument as a parameter to my webservice method. After I have loaded an XML file from a path, when I try to send the XmlDocument as a parameter by webservice method, I come across this error. What can be the reason? I use StreamWriter and I close it. I don't use XmlWriter.The development environment is VS 2008
Error Message:
Cannot write XML declaration. WriteStartDocument method has already written it.
Edit (from comments):I can't post all the code because it has more than 1000 lines. Also when I load Xmldocument in web, I can't use this method without problem. Maybe Webservice causes a problem?
Dim xml As New XmlDocument xml.Load("My Documents" & xmlfile & ".xml") myTransfer.Save_XML(xml, 1)
I tried to write a text written in my textbox to file.(a .txt). I scanned it to see if it contained any illegal characters, the program said that it did not. However, when I went to save it it said that the program performed an illegal operation.
System.Runtime.InteropServices.COMException was unhandled Message: Exception from HRESULT: 0x800A0005 (CTL_E_ILLEGALFUNCTIONCALL).
It created the text file but did not write the content of the textbox to the file.I can save the text in Microsoft word without a problem. Is there something wrong with the encoding for the textbox and how do I set the encoding for the characters so I can write it to a text file.
I have a VB.Net app that needs to print a bunch of pages from a secure intranet site; the app was made and was working for a non-secure site but now the app needs to login before accessing the web pages necessary to print. I get the error "Object Reference not set to an instance of an object" when I use my new Sub which follows:
Private Sub SiteLogin() WebBrowser1.Navigate("http://url/login/") WebBrowser1.Document.GetElementById("user").SetAttribute("value", "username")
[code]....
This Sub prints the given page in IE, so I figured I could use the same WebBrowser1 object for the login Sub, as I don't know how to or whether I should declare a separate object for the SiteLogin Sub. Both of these functions are called after the WebBrowser1 object is defined however. I just need to be able to submit a simple login form to a set URL, and this info needs to all be hardcoded (there's no option to set the location or login info nor should there be).
how to SetAttribute (a Value) for a textbox in a webpage document that don't have an ID .I already knows that to SetAttribute to a textbox you just need the ID of the element.
I.E : WebBrowser1.document.GetElementByID(THE ELEMENT ID).SetAttribute("Value",TextBox1.text)
So as you see in the example, to set attribute to an Element I need an ID and in my case I don't know what is the ID of the Specific Element.
I've recently started programming for Visual Basic Express - 2008, and I'm currently trying to make a program which takes a bunch of inputs (Name, Age, x2 score results) and then turns this into an output at the end which varies depending on the score results.
I've stumbled upon a small hinderance, which is that the very final stage which has a Console.Writeline does not appear after testing the program. So, everything else functions fine, but as soon as it gets past the "Console.WriteLine("All pupils have been calculated, the results are...")" command the program closes itself.I'm not looking for much help, just wondering exactly what is causing this to happen. I also realise that my coding is sub-par and is coded in a slightly odd fashion, but I'd rather just get this one to work and use the mistakes from this one to correct my future work.
I want to make an application that takes values & innerhtml from some elements on a webpage i made. For that i added a webbrowser to the project, and pointed it to navigate to my localhost server where i have some pages. However when i use the document.getelementbyid i don't get nothing on my richtextbox, and i don't know why, i use this function lot in javascript & i think its quite similar, so i don't know why it doesn't work , here is the code i use.
I have a dll file written for reading&writing data on USB.To use dll in VB.Net, one needs to integrate a .vb file which interface to that dll file to use its functions, properties etc..
What I need is to use this dll in a C# project. is this possible?[code]...
I just want to know whether I can use "Reflector" to disassemble a Program written in DOS and go through all the Codes of that program to learn how that program was made? If the "Reflector" is not the one for DOS Program, could you recommend a Free Disassemler for DOS Program?
I have a program written in VB 2005, the computer used to write the code was running in Windows XP and 32 bit Pentium D. Now, my boss want to buy a new computer to run the program, and he wants the one that comes with Windows 7, 64 bit. Can my program run in the new computer without any problem? Or, is there anything that I need to change for it to run there?
Is there some Firefox extension that was written in VB.NET / VB6?
Would be nice to have a template for changes.
I have to intercept the Firefox reloading of data (XML data refreshed regularly by some javascript routines).Pretty much as the extension "tamper" does it (url...)
I have been trying to create a timer program with VB 2010 to the accuraccy of 0.05seconds (If possible, 0.01s)I insert a timer into the form (Timer1, Interval - 50).[code]But when I run the timer for 1min, the recorded time was 48.05 sec.How can I make my timer more accurate? Is there anything i have done wrongly with the code?
i have written a small program to set wallpaper on the desktop when i change the wallpaper then if I refresh the desktop then problem is that,wall paper is disappeared and a blue screen comes.secondly i want few changes i want to set wallpaper as Tile,Center and stretch i want to use radio buttons on the form for this purpose so how can i make these changes.
VS 2008 VB/I've implemented an interface to a .com program written in c++. I'm trying to access a data structure array(uNewValues) of type PLCCOMMLib.ANALOG_CONTIN. uNewValues should be a datastructure array of several elements (iSigIDCount). My problem is I only get the first array element of the datastructure.I've tried several methods and looked into marshalling but don't understand how to implement marshalling if that is the correct option.
Code below:
Public Sub AnalogContinUpdate(ByVal iSigIDCount As Integer, ByRef puTimeDateStampGMT As PLCCOMMLib._FILETIME, ByRef uNewValues As PLCCOMMLib.ANALOG_CONTIN)
I have a small program on the menu written in VB6 retrieve data from Acess run very fast and now want to switch to VBNet2008. VBNet2008 conversion is still normal, but when running the menu does not appear that waiting in line, then click on the menu bar of this menu appears, but not the font is in Unicode data is available. Expect you to help debug programs that run on VBNet2008 still running good access Menu fast as running on VB6. Also supported is Unicode font on VBNet2008 does not function for unicode font. Attach program with VB6 and VB2008.
