tell me an efficient method of retrieving the CSS between tags on a page of markup in .NET?I've come up with a method which uses recursion, Split() and CompareTo() but is really long-winded, and I feel sure that there must be a far shorter (and more clever) method of doing the same.it is possible to have more than one element on a page, and that the element can be either or .
View 3 Replieshow to parse and extract specific elements out of a JSON that I obtain from a web source. Using Visual Studio 2010 and VB. I can get the JSON but I haven't been able to find any examples or tutorials regarding parsing the data, locating specific elements and their associated data.
View 1 RepliesI am trying to parse incoming data from a serial port that appears to be XML format but an exception is thrown when I switch from a simulated setup to the real deal.My program runs great in a simulated setup but when I try it out on the real device I get: XmlException was unhandled Unexpected end of file has occurred. The following elements are not closed: li840 line 1, position 9.The li840 tag is my root tag and the position never seems to get past 40. I've tried using a try catch block but in my in both my simulated and real setups my values are blank but the program will run without exceptions. Should I take my received data and put it into a file and then read from the file? or is there something else I can do to make this work properly? [code]
View 12 RepliesPretty 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?
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?
View 2 Replieshow i can change the native scrollbar style in my application to my custom style. I can adopt a custom scrollbar to attain this purpose but this will not serve my purpose because i want this attribute in entire application. Like it the text in textbox gets longer than its bounds than the scrollbar appers are my custom bar not the formal ones
View 12 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 RepliesI set the cell style progromatically on a condition.. but when that condition is no longer met I want to go back to the grids.cell original (default) style property
if x=y then
row.Cells(column.Name.ToString).Style.ApplyStyle(mystyle)
else
[code].....
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.
I am trying to make a style that only gets applied if the parent element of the element that the style refers to, has another specific style. Kind of like in CSS where you can do ".class1 .class2" to specify that the "class2" theme only applies if it is within an element with the class "class1". I do not wish to use any form of external DLLs or libraries for this task. I want to know if it's possible to implement on my own.
I've tried using MultiTriggers with no luck. I have a style that applies to all TextBlocks. I want the textblock to do the following: If the font-size of the textblock is 11 and the parent element's style is "PinnedSuggestion", set the foreground color to "#FF505050". If the font-size of the textblock is 11 and the parent element's style is "Suggestion", set the foreground color to "#FFCCCCCC". The conditions that I have tried to write to make this work, are as follows (the font-size condition is true, but the other one is not). The conditions are inside a style that applies to all textblocks in general.
[Code]...
I am creating an application and am very new to VB. I have 4 buttons on my form which is like my applications main menu. I would like that each of the buttons behaves in the following way when there is a mouse rollover: The Button back color is changed from the default to Red The Button text is changed to Blue, Bold, and increases in font size I would also like all the buttons to go back to their initial state when the mouse leaves.
Another thing, instead of me writing code for each of the buttons event handlers (Mouse Hovers, and Mouse Leaves) is there a way I can write this code once, maybe as a function and then always call it for any button that I create from here on so that any new buttons take on this behaviour.
Dim Document = XDocument.Load(FileName)
Dim findElement = Document.Elements("GradeProfile")
[code]....
how to get the current Style of the Windows Xp programmatically. At the program startup I need to get if Windows is running in XP Style or in Windows Classic Style, so I will set my buttons Flatstyle property to flat or standard.
View 6 RepliesI'm using Visual Studio 2008.I've recently begun toying with XML, because I have been using XLS up to this point. I want my apps to be more flexible.
OBJECTS:
Label1
Button1
Profile.xml (ok, not really an object, but you know ...)
GOAL: To display the Sum of <Calories> in Label1.Text when Button1 is clicked.
Here is the XML file (Profile.xml):
<?xml version="1.0" encoding="utf-8"?>
<Days>
<Date>[code].....
today i started up my project and got like a error something with a line was something and i could press like fix or do not fix.I pressed fix and i got a xp style on my program. every thing looks weird..oh i forgot say that i run vista... and i dont want xp style on this program. ITs just the program that is changed, i got every thing else in vista style.i worked nights for this program and don't wanna do it again!
View 5 RepliesFirst post here. New to GDI+, but not so new to programming. I am trying to create an Alt-Tab style dialog. For some reason, the snippet below (copied from somewhere, I forget) just creates a purple rounded rectangle. Anybody know of Aero-compatible code snippets to create rounded corners?
View 3 RepliesI have 2 buttons and 2 divs div1 and div2.On click button1 div1 is made visible and div2 invisible,On clicking button2 div2 is made visible and div1 is invisible.For that i used javascript.
function showdiv2()
{
document.getElementById("div2").style.visibility="visible";[code].....
In div2 i have a gridview in which i have a linkbutton named lnkDelete.In its click control is going to div1.In click of lnkDelete,i want to make div1 invisible,but on clicking button1 div1 should be visible.make div1 invisible in clickevent of lnkDelete in codebehind?
I have a object type variable (control .Tag) that I need to cast to a structured type, and change a member in. This is a contrived but representative example
[code]...
I am using an FontDialog to allow the user to select a font, How should it get the font Style form the selected Font.[code]....
View 8 RepliesI want to start to use the wpf datagrid.I need to create a datagrid programmatically in vb.netDoes someone know how to that?for example if I want to add a column checkbox how can i do that?
View 3 RepliesI've been professionally writing VB.NET software for seven years. However, I don't have a strong computer science background - four courses while studying education at university in the 90s that gave me some CS basics and exposure to Pascal, C and Lisp. Anyway, there are a whole bunch of practices that I'm missing - testing, patterns, "real" object-oriented design, etc and I'm trying to pick them up. If you look at most of my applications, you find blocks of fairly old-school procedural code being triggered by form events. Where I write my own classes, I'm mostly using them as data-structures with overloaded New() methods and maybe a custom output method. I consider myself quite proficient at this kind of work and none of my employers has had any problems with it. But it's not really right and I'd like to learn more of the craft of my trade.
Since the early 90s, I've looked at several different intro to objects kind of documents -- books, tutorials, etc. They seem to all use dogs and cars as analogies and examples with tons of responsibilities per object. And they've never stuck with me even as I wanted to learn from them.Lately, I've been reading "Uncle" Bob Martin's notions of OOD and I like what I see. But it's hard for me to follow the C/Java syntax and I get hung up on that difficulty rather than just ingesting it smoothly. So I'm looking for good sources with VB examples because that is (by far!) the syntax with which I am most comfortable. There's not much around. The stuff that I find doesn't seem to advocate or exemplify e.g. the Single Responsibility Principle.
I've been looking for books, but they mostly seem like they're either OOP and not in VB or VB and not (really) OOP. I've checked out the following topics here: 1, 2 and 3 -- among others. I've scrutinized the Amazon reviews of most of the books listed in those threads and keep coming up with reasons to suspect that they aren't really what I'm looking for.
So, any ideas? If you're going to suggest a book, I'd like to hear how well it fits the needs that I've outlined. If you think I'm on the wrong track, I guess I'd be interested to hear why. If you have other suggestions on how to pursue this avenue of improvement, that too would be great.
I am trying to add the values in my array.. and this is my code
dim totals(6) as decimal
public function AddIBNRTotal(byval Amt as decimal,srvcdesc as string) as decimal
if srvcdesc = "ZZ_TOTAL" then
[Code]....
I know the addIBNRfunction works fine cause it is displaying the correct amounts in my textbox
but when i call the Sumnumber() i am getting 70000 dollars short...
So is this the right way to add values or elements to a array...
<data>
<food>
<id>1</id>
<name>asparagus</name>
[Code]....
i would like to get the unique catlogs, so from this list i want to extract only 7190, 7192, and 7193. i have a script that puts it into a dropdownlist by using:
DropDownList1.DataSource = dv
DropDownList1.DataBind()
but i need it to get only the unique values.
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" ?
I'm attempting to grab data from a webpage, but I've been unsuccessful in my attempts.
View 1 RepliesI have a collection (a Dictionary, actually) of strings as the key and strings as the value. The value strings are filenames. I wish to find which elements contain a certain filename as the value, returning the Key so that I can modify the Value (change the filename).[code]....
View 4 RepliesHere's a portion of my XML string.
<OpenSearchDescription>
<opensearch:Query searchTerms="Star Wars"/>
<opensearch:totalResults>18</opensearch:totalResults>
[Code]....
Here's a portion of my xml file
<sources><comicbooks><source>
<profile>0</profile>
<name>Main</name>
<path>*mypath not showing*</path>
</source></comicbooks></sources>
I am also using a schema file for the sources.xml file.
Here's my
Dim fileSources As IO.File
If fileSources.Exists(filePath & "sources.xml") Then
Try
Dim Sources As XDocument = XDocument.Load(filePath & "sources.xml")
[Code] .....
lbSources doesn't get populated with anything and Label2 doesn't change either.
I have been learning VB.NET and am currently having troubles retrieving data from an XML file. I'm trying to keep the code as simple as possible as I only need to select single items from an XML file, not rows of data.
The XML file contains:
<CurrentPeakUsage xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://au.com.amnet.memberutils/">
<Period>
[code]....
While the msgbox will contain the entire XML document, so it is loading correctly, I can't pull the single element value.
How would you code this so that it adds up the first column, and then the second column?
Dim intSales(,) As Integer = {{100000, 150000}, _
{90000, 120000}, _
{75000, 210000}, _
[Code].....