What is the best way to write data from a hierarchical set of objects to a file? The highest order parent has 1000's of children all with children (DOM style). Trying to traverse the tree and creating one big string which is then written to a file is throwing an out-of-memory exception while creating the string.
Details I've created a set of classes that make up an HTML document. There was control that I needed that the pre-packaged HtmlElement and HtmlDocument didn't give. The Document Object Model is maintained throughout, with some similar methods and properties and such. I'm using the custom classes to create a very large HTML document. When I say large, I mean on the order of over 2000 printed pages. It's doubtful that they will all be printed, but some will be.
My base HTMLElement object, from which all other objects are derived, contains an OuterHTML property which, as expected, gets the full HTML of the calling object and the HTML of all child elements. After the code which generates the report runs, I have my HTMLDocument object containing the entire report which needs to be written to a file. Here is where I keep running into problems.
If I call OuterHTML on the HTMLDocument object, I get an out of memory exception.
Other reports have saved fine, but this is by far the largest report I've thrown at my HTMLElement object. My assumption is that the property call is generating too much text.
I am basically just creating a new .HTML file, opening it for reading, and writing in all of the text. Like:
I have a block of HTML which I want to write to a file. It contains about 30 lines and it's difficult to escape all the double-quotes in individual WriteLine statements. In PERL, I can do something like the following to write inline HTML and print everything upto <<OUTFILE to outfile as-is, is that possible in VB .Net 2008?
print <OUTFILE <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>GSC Signature</TITLE> <META content="text/html; charset=windows-1252" http-equiv=Content-Type> <META name=GENERATOR content="MSHTML 9.00.7930.16406"></HEAD> <BODY><<OUTFILE
I could save the HTML in a template file and copy it into a new file each time, but that's not very flexible.
Environment: .Net 3.5 VB.net (C#ok too) I wrote a multi-project WinForms app that needs to load a couple dozen variables from a client section of a config file based on user's selection of client. Also some program variables need to be loaded as well. So far so good, I put them in an app.config file.In the appsettings section I put the main program variables. e.g.
I'm looking for an efficient means of extracting an html "fragment" from an html document. My first implementation of this used the Html Agility Pack. This appeared to be a reasonable way to attack this problem, until I started running the extraction on large html documents - performance was very poor for something so trivial (I'm guessing due to the amount of time it was taking to parse the entire document).[code]...
I want to write the data to a file which in an format that is only understandable by my program, and if any one opens it in notepad must not be able to read(understand) it.
I'm using custom serialization and when the xml is generated it's putting the class name as the root element
Example:
<MyClassName> <MyIntendedRootNode> <ObjectType>
[code]....
I'm invoking the serialization by calling xmlserializer.Serialize(writer,Me) so I'm sure that has something to do with it.I've tried putting XMLRoot onto the class, but I think as vb is compiling this partial class with its aspx page, it's either overwriting this property or ignoring it entirely.I'd like to just tell it to either throw away everything it has and use a different root element.
Usage: Users create pretty HTML news letters in another app. They post the newsletter to the web, but they also want to set the contents of the HTML news letter file as the body of an email and send it using Application In Question. The users understand to use absolute link and image references when sending an E Newsletter. Environment:
AIQ is a VB.Net app deployed via ClickOnce. It is an intranet app; one can be sure MS Office 2003 and the interop 11 dlls are on the target machines.
Restrictions: MAPI is out. It mangles the HTML. Since it is a ClickOnce deployment, we can't register dlls (I think, correct me if I am wrong). Therefore CDO and COM is out (again, I may be wrong.... I would be happy to be proven so).
Okay, well I have tried many things, I can type in the textbox using:
for each element as htmlelement in webbrowser1.document.all if element.GetAttribute("ID") = "IdOfTextBoxHere" element.innertext = "HIIIIII" end if next
I've been programming in VB.NET 2005, 2008 and now 2010 for almost 2 years. Just casual little applications, nothing big.In this project I need to parse links from a web page, it doesn't quite work though, it parses the names only and no links.I'll give you my code, let's say for a random page:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load TextBox1.Multiline = True WebBrowser1.Navigate("http:www.buyfixuse.com")
[code]....
If I activate this function in my application instead of links to the two blog posts on that website, it only gives out the text that is related to these links - (more...)
I need to write some code that opens a Word Document and then either extracts the data so that a HTML document can be created or simply resaves it as an HTML document. I've had a quick look around the net and tried adding an Object Reference to Microsoft Word Object X.0 Library to my Project. So that I could play around with things, but immediately It was telling me the following weren't defined.
Dim objWdApp As Word.Application Dim objWdDoc As Word.Document Dim objwdRange As Word.Range
Could anyone either explain what kind of thing I would need to do or link me to some useful tutorial.
I am trying to run an HTML file that I have imported into the Solution Explorer. I don't know how to refer to documents in the Solution Explorer in code. How can I do that?
I am currently using this code, but it doesn't work: process.start(".help.html")
I have a simple HTML viewer and I would like to add the capability of searching an open document for a text value I specify. Below is an example I found on MSDN. VB gives me an error, "Selection" is not a member of "System.Windows.Forms.Application".
Private Sub SelectionFind() Dim findText As String = "find me" Application.Selection.Find.ClearFormatting() If Application.Selection.Find.Execute(findText) = True Then
[code]....
What I would like to search is the content of a WebBrowser control.
How can you find a specific HTML element in a webbrowser.document? I'm making a program that will go to a specified address on the internet and find a html element and get the src link from the element then return the src to the imagelocation of a picturebox. Is this at least possible?
i have a windows form that has a web browser control.
i need to pass the value from the windows form to the html doc.
here is my problem.... can pass the value across to to a function in the html page but when i try to pass the same value to an image tag in the same document it does not read the value.
here is my code from the winform If e.Url.Equals(wb1.Url) Then wb1.Document.InvokeScript("fetchImage", New Object() {path}) End If
it passes through the variable 'path' to a function in the html doc.
heres the code for the html doc.... this part of the code works
function fetchImage(path) { var now = new Date(); var zm_image = new Image();
I have some data that is contained in HTML tables within a webpage. I need the simplest means of extracting the data for storeage in SQL tables. I am knowledgeable of how to add the data to SQL tables...this portion of the code is already written. I would like to pull the data into the VB.NET 2008 environment using the XML DOM or a more efficient option.
So, in this program I added 2 necessary login codes let's say, first a code that I will provide and then the username and password from my website. I implemented both ways, the first one worked perfectly, however, the second one is giving me some problems, my idea for that control was not using a database of users, that was going to be too complicated for a 14 year old guy, so I decided to take the source code for my website and I took a fragment, the boxes for the login, username, password, forgot your password, remember me and some other boxes, great, that worked perfectly, I uploaded the HTML modified document to my website's files and linked it to the URL of the webbrowser control in one new form, good, it's working, but I wanted a simple condition that works for this function "When the webbrowser loads the success website, hide me and show the past login form, when this one shows the failed login, popup a messagebox that says the error.". I have been looking for that simple condition for a long time. I am using Visual Basic 2010 Express Edition.
I want to save an HTML document into my.resources, and then load it in webbrowser1.navigate when it is called to do so, but it seems when I save my.resources.myfile and call it with webbrowser1.navigate(my.resources.myfile) it wont navigate properly or read the html file properly. How can I have an html document be saved in my resources and load in a webbrowser???
I have used examples from threads here on how to open and convert word documents to html in order to parse them. I got it all working great using the office interop library but used an example word document with some text in it and it worked fine. Now with actual word documents that I need to parse that come in all types of formatting and irregular formats I got it to convert to html all fine. But the actual html when looking at it does not make sense and I am not sure how to parse this. for example:
I use VS 2008 Visual Basic and I added windows forms HelpProvider to supply user with more information using F1 button when a windows form is active.No VB coding are used, just help provider and HTML docs. with css.I have created a HTML document and a picture. On both items I have set the [copy to output directory] property to Copy Always.The HTML document starts HTML page and IE is showing the text as expected , but the picture does not appear.I use click once deployment to deliver the system. The HTML documents and picture is located on the user computer after the deployment. How do I add path to a location in a win program with pictures used in a HTML document? What is the correct setting of [ build action ] parameter of these items?
We receive an HTML document in an email which has some special pricing and products. I want to be able to parse the data, perform some lookup operations on it, assign some pricing markups, save it to a data source for future referance and do it with VB.net and a web browser. I'd really like to use MSHTML.HTMLDocument, but all the documentation I have is based on HTTP URL's, but since these HTML pages will be opened from an eMail or saved to a fileshare, they won't have the HTTP. I've also tried to read it as a text file and parse with RegEx, but it's not very effecient and to be honest, RegEx is still a fog to me.
Would anyone be kind enough to suggest a way to do this? Is MSHTML able to do it and if so; how do I set up a reference to a non-HTTP URL?
