Program Skips Code After Trying To Parse XML?
Jun 8, 2010
I'm trying to parse some XML (html) I downloaded using WebRequest.Create() and then read it. However after loading the XML file using LoadXml(string), anything else I execute doesn't work. Setting a breakpoint on anything afterwards doesn't work and it doesn't break.I tried catching exception but none are occurring, so I'm not sure what the problem is.
Here is my code:
Dim reader As StreamReader = New StreamReader(HTTPResponse.GetResponseStream())
Dim xDoc As XmlDocument = New XmlDocument()
[code].....
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Feb 15, 2012
How to parse HTML added by code behind using vb.net code ?[code]...
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Sep 7, 2010
i'm parsing a string into two values then using one string named month to get the column name and one string named value to assign the value.
[Code]....
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Apr 15, 2011
I am using the following code to parse a XML file of mine:
Code:
Dim xml As String = "<?xml version=""1.0"" encoding=""Windows-1252""?>" & _
"<theref:theref-msg xmlns:csr=""http://www.xxxxx.com/Schema/csr"" xmlns:theref=""http://www.xxxxx.com/Schema/theref"">" & _
[CODE]...
I get a value of "0" from xmlb when i should get a "1" if it found something. I can get the first half (<theref:header> to </theref:header>) using this command:
Code:
Dim xmlb = (From getXMLData In document.<theref:theref-msg>.<theref:header>).ToList()
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Sep 5, 2010
I am creating a kind of 'lightweight' visual studio IDE, basically a text editor for VB or C# code files, or in other words: a visual studio IDE without all the fancy stuff like actually running projects, debugging, form designer, etc. The idea is that you can view and edit code source files quickly and easily without having to start visual studio itself. I often find myself opening source files in notepad when I just want to take a look at something quickly, or to type some code that is intended to be posted on this forum. I find it too much 'work' to fire up visual studio on those occasions, but it would be nice if I had some basic syntax highlighting (already have that), Intellisense and such.
What I'm trying to do now is parse a VB or C# source file to extract information such as the types/classes in a file, and the members (as well as their parameters and return type) in those classes.I was going to do this manually but I doubt I could pull it off efficiently (if at all), so I started thinking about it and thought maybe .NET has some built in functionality already. I don't know much about this stuff, but I do know that you can compile source code by feeding it a string that represents the code. So if it can 'compile a string', then surely it should be able to parse it as well? With the difference between compiling and parsing (I'm not sure if I have this terminology correct) I mean:
- compiling: reading the source and converting it to the CIL so it can be run
- parsing: reading the source and extracting classes/members info, so that the IDE can do some basic error checking (undeclared variable warnings etc) and display the members in a class (in those comboboxes at the top of the code editor for example).
I don't need to compile the source (I'm not going to run the application), I only need to parse it.I would assume that I could call some function that would return a collection of types (Type), and from that I could figure out the members (MethodInfo, PropertyInfo, etc) and their parameters, return types, etc. And all I should give it is the source code as a string.
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Apr 2, 2010
I'm trying to make sense of a big data dump of XML that I need to write to a database using some VB.net code.[code]...
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Jun 15, 2010
I am having trouble injecting code directly into a webbrowser control.I am trying to search for:<param name="bgcolor" value="#869ca7" /> in a webpage and replace the value with my own to change the color of the page background..[code]Object reference not set to an instance of an object.
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Jan 23, 2011
I want to convert my MySQL to MSsql using an automated program using vb.net. Do you have any links or parsing engine that could parse Mysql?
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Aug 9, 2007
I want to catch the text from an html page.. you know that when you open any html page in the browser, you will see a text but with formatting.. because it's an html code having a lot of tags...
how to get the text from an html page and ignore all formatting and html code?
[Code]...
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Nov 25, 2011
I am trying to check the value of a field before decided what to input into a drop down list in ASP.net.
I am using datareader.Read() in order to read the recordset so I can do this. However this then skips the first row of data . . The drop down box is basically a list of sizes and colours . . . So currently I am missing the first size.
Here is the code:
Using cmd As New SqlCommand("doGetAllSizesForProduct", oConn)
cmd.CommandType = CommandType.StoredProcedure
cmd.Parameters.AddWithValue("@id", CType(Request.QueryString("id"), Integer))
[Code].....
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Dec 18, 2011
In the folowing code the DataReader is not assigned The Line Dim dr As OleDbDataReader is skiped.[code].....
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Jul 8, 2011
I am just wondering if there is any DLLs or features in VB.Net 2008 that I could use to parse a picture of text to text (for example, a screenshot), assuming the text are in very recognizable format (i.e., not like CAPTCHA type of text).
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Sep 17, 2009
I have a binding source that when I use the MoveNext or MovePrevious methods it skips records. I've tried circumventing this by using Position ++ and Position -1 instead but I still get the same result. I even resorted to manually sorting the binding source to see if that would help but no joy as well there.
I have a bindingsource that is tied to a dataset class. I added 2 records to start and movenext worked as it should (moved 1 to 2) as well as move previous. I added a third record and now the movenext method skips record 2 and moves straight to 3. The same symptom also occurred for move previous. I also added a fourth record and it got even weirder. As before when movenext was invoked, the record pointer moved from record 1 to 3. I invoke MoveNext again and it moves to record 4. Now I hit MovePrevious from Record 4 and it moves to record 2 skipping record three.
Others who are working on forms with different bindingsources ties to the same dataset class are seeing similar things.
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Nov 1, 2010
I'm trying to detect when the tab key was pressed and intercept it in certain cases. Since the form I'm working with has many fields, I've tried overriding ProcessTabKey so that I don't have a separate sub for each control. However, I've found that after adding a simple ProcessTabKey method, each time I press tab it skips one of the combo boxes. In order to duplicate the situation, using Visual Basic Express 2008, create a new Windows Forms project and add 5 combo boxes to the form - allowing each to automatically get an incrementing TabIndex.
Then add the following code the form:
Public Class Form1
Protected Overrides Function ProcessTabKey(ByVal forward As Boolean) As Boolean
MyBase.ProcessTabKey(forward)
End Function
End Class
Now when you run the project, you'll see that each time you press tab it skips one of the combos.
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Dec 13, 2011
I have tried a few things like converting HTML to XML and then using an XML navigator to get input elements but I get lost whenever I start this process.What I am trying to do is to navigate to a website which will be loaded using textbox1.text.Then download the html and parse out the input elements like . username, password, etc and place the element by type (id or name) into the richtextbox with the attribute beside the name.[code]Any clues or how to properly execute an HTML to XML conveter, reader, parser?
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Jun 19, 2010
Got a problem that's hopefully a quick fix. I've got a homework assignment where I have to link an access database file and allow the user to go through the records, add/delete records and save the file.
When I run the program everything seems to work fine, except when I hit the next button to go to the next record, it always skips 2 ahead, from 1 to 3 and 3 to 5. The previous does it also and when I click the delete it deletes 2 records. I can't figure out why it's doing this. The table we linked was already created for us so I don't believe that it is a problem with that. One weird thing I noticed is that it shows that there are 5 records so I wouldn't think that it is seeing 2 as 1.
Here is my code for the buttons:
CODE:
Here is the full code
CODE:
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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?
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Jun 3, 2011
I'm attempting to run my first program in vb.net and everything works BUT the array.
Here is the archive: [URL]
The problem occurs in the Maps.vb file on line 17 when the assignment of variables to the array starts. When running the breakpoint debugger you will notice that when it reaches line 17 it just skips the whole sub and then the next breakpoint is unable to be found.
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Jun 8, 2012
I just want to parse simple expressions like IIF(FVAL(PFC) = TRUE, (IIF((ORGVAL(BAS, "2012/12/31") + ORGVAL(DA)) < 6500, (FVAL(BAS) + FVAL(DA)) * 12%, 780)), 0)`After parsing this I should be able to know what functions contains what parameters.
[Code]...
I'm stuck with .Net Framework 2.0, so no Linq or lambda expression goodies for me. Also I want to include the code in my custom library and not just reference it. Can anyone point me to some good library or code.
I just need to parse and not evaluate the expression and find what tokens are in use. After finding the tokens I need to change the expression string before parsing, like if the function ORGVAL is used then the parameter passed has has to be prefixed by an underscore. Like ORGVAL(BAS) will transform to ORGVAL(_BAS). Some functions can have tow parameters like ORGVAL(BAS, "2012/12/31") and this will transform to ORGVAL(_BAS, "2012/12/31")
NOTE: IF THERE ARE OTHER WAYS OF DOING IT PLEASE LET ME KNOW. I WOULD LOVE TO AVOID A PARSER AND LEXER.
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Oct 26, 2009
I would like to ask some questions related some functions i want to make in my program:
1. I am using this function in order to get a the item code from the database Long.Parse(myReader(0)).ToString("2200000000000") the result i get is: 2200000059091. The form that i want the resultset is
22 (fix value) + item code (6 characters right justified) + 00000 (fix value) 2205909100000 how should i change my code to obtain this result?
2. The programs every time it runs creates a text file which i also attached it plu1.txt, when i try to open it with notepad i see all the lines justified, on the other hand when i open the text file with Wordpad or ConTEXT the lines are not fixed, others are longer others are shorter? What should i change in my code in order to have every line fixed lenght... The code i am using is the following
Dim myReader As SqlDataReader = myCMD.ExecuteReader()
Dim fNextResult As Boolean = True
Using myWriter As IO.StreamWriter = New IO.StreamWriter("c:everest
[CODE]...
3. third and last question is that my program every time it ends show up a pop up menu which says "Text is created." Instead of this i would like to create a file lets say log.txt and every time the program runs, it will overwrite on the log.txt file a line like this: system date + Text is created + with X lines (where X are the lines of the text plu1.txt) ex. 26-10-2009 14:56 Text file created with 15 lines
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Mar 17, 2010
I'm trying to read a file line by line into an array but It skips the item at index:3 I have it msgboxing just to make sure and it wont even touch it.
Dim Btn As Button = DirectCast(sender, Button)
Dim path As String = Application.StartupPath & "Libraries" & Btn.Text.Replace(" ", "_") & ".ipt"
Dim i As Integer = 0
Dim lines As String() = IO.File.ReadAllLines(path)
[code]....
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Jun 11, 2011
I was developing my own project in the university so what i am stack is to have save button which firstly validates what the user enters the form. for instance if the user skips the text fields, i wanted to restrict the user to fill all the form and when he completes, the save must be accomplished.
Here's the code i was trying to put but i was having problem saying the windows.forms.etc is unable to convert the save as Boolean and something like that.
Dim success As Boolean
Private Sub Save_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Save.Click
[CODE]...
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Mar 27, 2012
I'm wondering if it is possible to write the code for the button so that, when pressed by the user, it would add whatever text is in the text box to the list box and change the code of the form load to add that text to the pre-existing listbox.items.add's that are in the code of the form load.
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May 5, 2011
The program has errorhandle and write log function, however, it could not catch the error message in the program.
The following error message in Event Viewer. Error Module: oleaut32.dll ,version 5.1.2600.5512, error code: 0x000048f9
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Sep 27, 2009
I downloaded vb but i cant put in src ccode.
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Apr 1, 2012
How can i convert this to vb.net?
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May 28, 2009
allow the user to enter a stock transaction and determine the stockbroker's commission. Each transaction includes the following data: the stock name, price per share, number of shares involved, and the stock broker's name. Assume price per share = P. The stockbroker's commission is computed in the following manner: If the P (price per share) is less than or equal to $50, the commission rate is $0.19 per share, if P is greater than $50, thecommission rate is $0.26 per share. If the number of shares sold is less than 150, the commission is 1.5 times the rate per share. Display the results in a message box, including the total commission earned.
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Dec 14, 2009
It can be compiled successfully in C#[code]...
Is it the language difference between c# and vb.net?
How can i covert this C# Code to VB.NET Code?
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Apr 21, 2009
"Here's the code from kaymaf's first post. I used a website to convert it from C# to VB.Net. If you can't get it to work, post again and we'll try something different."[code]...
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Feb 23, 2011
I need to convert following code block from C# to VB.NET.[code]....
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