Develop Reference

Get original source of embed .NET function

i am working to a project that will create a font dynamicly for C#
For that i use the function ConvertFromString of the Fontconverter class of the namespace System.ComponentModel.
its point is to create a font from a string
Ex:
var cvt = new FontConverter();
Label newLabel = new Label();
coolLabel.Font = cvt.ConvertFromString("Microsoft Sans Serif; 8,25; style=Bold") as Font;
But i would like to create dynamicly string with all options, its really hard to work with the original function and i would like to get the source of it. I tried googling for the function source & on the .net repos of dotnet but could not find the sosaid function.
I also tried looking trought VS Code 2019, no result
(Just showed me a Resume, parameters, returns, exceptions as a comments
So, if anyone can help me getting the original function so i can get my work done, thanks.
To be more clear, i want to "translate" this C# function to NodeJS so i can send NodeJS generated font so C# work on it.
Note: i DID checked on StackOverflow but did not found any question like mine that could help me.

You could use a .NET Decompiler to have a look under the hood.
I used dotPeek in the past which performed well

How to get the correct unique selector of a dom element for csquery?

So I'm trying to scrape a webpage with some CC content on it, but I'm unable to zero in on the correct unique selectors to provide for CsQuery. Initially after failed attempts (only 3/11 elements were successfully obtained) using Google Chrome, IE 11 and Firefox, I understood CsQuery used Gecko engine. Magically, Firefox, which used Gecko engine itself, didn't give me the correct selectors (again the 3/11 scenario). So I tried to dig deeper. The Gecko engine validator update for CsQuery was released May 15, 2013. So I searched for the firefox version at that time (which was 21, released May 14, 2013). I used it, only to be disappointed with the same results. (3/11)
So,
how do you get the correct unique selector for your projects? Any tips would help me, I've been running around this problem for about two weeks now. I can give the url and my requirements if that is absolutely necessary, but I would prefer not to.
What I mean by 3/11 elements obtained:
CQ somePage = CQ.CreateFromUrl(someUrlHereAsString);
String someQuery1 = "div someTag:nth-child(1) someOtherTag";
String someQuery2 = "div someOtherTagNotUsedBefore";
CQ someDom = somePage[someQuery1];
CQ someOtherDom = somePage[someQuery2];
Now, if someDom is null and someOtherDom has a valid csquery DOM element, I say 1/2 elements successfully obtained.

may be outdated...
You really need a SelectorGadget
a chrome extension which quickly generates the css selector.
and very helpful with csquery for generating unique and required css selectors.
and you can write a web scraper by using both of these tools quickly.

How to translate website in another language?(ASP .NET , c#)

I have developed a large business portal. I just realized I need my website in another language. I have researched the solutions available like
Used third party control on my website. (Does fit in my design. Not useful regarding SEO point of view. Dont want to show third party brand names.)
Create Resource files for each language.( A lot of work required to restructure pages to use text from resource files. What about the data entered by the user like Business Description. )
Are there any Other options available.
I was thinking of a solution like a when a page is created on server side then I could translate it before sending back to client. Is there any way I can do that?(to translate everything including data added from databases or through a code. And without effecting design. )

If you really need to translate your application, it's going to take a lot of hard, tedious work. There is no magic bullet.
The first thing you need to do is convert your plain text in your markup to asp:Localize controls. By using the Localize control, you can leave your existing <span> tags in place and just replace the text inside of them. There's really no way around this. Visual Studio's search and replace supports regular expression matching that may help you with this, or you can use Resharper (see below).
The first approach would be to download the open source shopping application nopCommerce and see how they handle their localization. They store their strings in a database and have a UI for editing languages. A similar approach may work well for you.
Alternatively, if you want to use Resource Files, there are two tools that I would recommend using in addition to Visual Studio: Resharper 5 (Localization Features screencast) and Zeta Resource Editor. These are the steps I would take to accomplish it using this method:
Use the "Generate Local Resource" tool in visual studio for each page
Use Resharper's "Move HTML to resource" on the text in your markup to make them into Localize controls.
Use Resharper to search out any localizable strings in your code behind and move them to the resource file as well.
Use the Globalization Rules of Code Analysis / FXCop to help find any additional problems you might face formatting numbers, dates, etc.
Once all text is in the resx files, use Zeta Resource Editor to load up all of your resx files, add new languages, and export for translation (or auto translate if you're brave enough).
I've used this approach on a site translated into 8 languages (and growing) with dozens of pages (and growing). However, this is not a user-editable site; the pages are solely controlled by the programmers.

a large switch case? use a dictionary/hashtable (seperate instance for each a language), it is much, much more effective and fast.

To Convert The Page To Arabic Language Or Other Language .
Go to :
1-page design
2-Tools
3-Generate Local Resource
4-obtain "App_LocalResources" include "filename.aspx.resx"
5-copy the file and change the name to "filename.aspx.ar.resx" to convert the page to arabic language or other .
hope to helpful :)

I found a good solution, see in http://www.nopcommerce.com/p/1784/nopcommerce-translator.aspx
this project is open source and source repository is here: https://github.com/Marjani/NopCommerce-Translator
good luck

Without installing any 3rd party tool, APIs, or dll objects, I am able to utilize the App_LocalResources. Although I still use Google Translate for the words and sentences to be translated and copy and paste it to the file as you can see in one of the screenshots below (or you can have a person translator and type manually to add). In your Project folder (using MS Visual Studio as editor), add an App_LocalResources folder and create the English and other language (resx file). In my case, it's Spanish (es-ES) translation. See screenshot below.
Next, on your aspx, add the meta tags (meta:resourcekey) that will match in the App_LocalResources. One for English and another to the Spanish file. See screenshots below:
Spanish: (filename.aspx.es-ES.resx)
English: (filename.aspx.resx)
.
Then create a link on your masterpage file with a querystring that will switch the page translation and will be available on all pages:
<%--ENGLISH/SPANISH VERSION BUTTON--%>
<asp:HyperLink ID="eng_ver" runat="server" Text="English" Font-Underline="false"></asp:HyperLink> |
<asp:HyperLink ID="spa_ver" runat="server" Text="Español" Font-Underline="false"></asp:HyperLink>
<%--ENGLISH/SPANISH VERSION BUTTON--%>
.
On your masterpage code behind, create a dynamic link to the Hyperlink tags:
////LOCALIZATION
string thispage = Request.Url.AbsolutePath;
eng_ver.NavigateUrl = thispage;
spa_ver.NavigateUrl = thispage + "?ver=es-ES";
////LOCALIZATION
.
Now, on your page files' code behind, you can set a session variable to make all links or redirections to stick to the desired translation by always adding a querystring to urls.
On PageLoad:
///'LOCALIZATION
//dynamic querystring; add this to urls ---> ?" + Session["add2url"]
{
if (Session["version"] != null)
{
Session["add2url"] = "?ver=" + Session["version"]; //SPANISH version
}
else
{
Session["add2url"] = ""; // ENGLISH as default
}
}
///'LOCALIZATION
.
On Click Events sample:
protected void btnBack_Click(object sender, EventArgs e)
{
Session["FileName.aspx"] = null;
Response.Redirect("FileName.aspx" + Session["add2url"]);
}
I hope my descriptions were easy enough.

If you don't want to code more and if its feasible with google translator then You can try with Google Translator API. you can check below code.
<script src="http://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>
<script>
function googleTranslateElementInit() {
$.when(
new google.translate.TranslateElement({pageLanguage: 'en', includedLanguages: 'en',
layout: google.translate.TranslateElement.FloatPosition.TOP_LEFT}, 'google_translate_element')
).done(function(){
var select = document.getElementsByClassName('goog-te-combo')[0];
select.selectedIndex = 1;
select.addEventListener('click', function () {
select.dispatchEvent(new Event('change'));
});
select.click();
});
}
$(window).on('load', function() {
var select = document.getElementsByClassName('goog-te-combo')[0];
select.click();
var selected = document.getElementsByClassName('goog-te-gadget')[0];
selected.hidden = true;
});
</script>
Also, Find below code for <body> tag
<div id="google_translate_element"></div>

It will certainly be more work to create resource files for each language - but this is the option I would opt for, as it gives you the opportunity to be more accurate. If you do it this way you can have the text translated, manually, by someone that speaks the language (there are many companies out there that offer this kind of service).
Automatic translation systems are often good for giving a general impression of what something in another language means, but I would never use them when trying to portray a professional image, as often what they output just doesn't make sense. Nothing screams 'unprofessional!' like text that just doesn't make sense because it's been automatically translated.

I would take the resource file route over the translation option because the meaning of words in a language can be very contextual and even one mistake could undermine your site's credibility.
As you suggest Visual Studio can generate the meta resource file keys for most controls containing text but may leave you having to do the rest manually but I don't see an easier, more reliable solution.
I don't think localisation is an easy-to-automate thing anyway as text held in the database often results in schema changes to allow for multiple languages, and web HTML often need restructuring to deal with truncated or wrapped label and button text because, for example, you've translated into German or something.
Other considerations:
Culture settings - financial delimitors, date formats.
Right-to-left - some languages like arabic are written right to left meaning that the pages require rethinking as to control positioning like images etc.
Good luck whatever you go with.

I ended up doing it the hard way:
I wrote an extension method on the string class called TranslateInto
On the Page's PreRender method I grab all controls recursively based on their type (the types that would have text)
Foreach through them and text.TranslateInto(SupportedLanguages.CurrentLanguage)
In my TranslateInto method I have a ridiculously large switch statement with every string displayed to the user and its associated translation.
Its not very pretty, but it worked.

We work with a Translation CAT tool (Computer Assisted Translation) called MemoQ that allows us to translate the text while leaving all the tags and coding in place. This is very helpful when the order of words change when you translate from one language to another.
It is also very useful because it allows us to work with translators from around the world, without the need for them to have any technical expertise. It also allows us to have the translation proof read by a second translator.
We use this translation environment to translate html, xml, InDesign, Word, etc.

I think you should try Google Translate.
http://translate.google.com/translate_tools
Very easy and very very effective.
HTH

Creating a simple 'spider'

I have researched on spidering and think that it is a little too complex for quite a simple app I am trying to make. Some data on a web page is not available to view in the source as it is just being displayed by the browser.
If I wanted to get a value from a specific web page that I was to display in a WebBrowser control, is there any method to read values off of the contents of this browser?
If not, does anyone have any suggestions on how they might approach this?

You’re not looking for spidering, you’re looking for screen scraping.

I'd have to agree with Bombe, it sounds more like you want HTML Screen Scraping. It requires lots of parsing, and if the page your scraping ever changes, your app will break, however here's a small example of how to do it:
WebClient webClient = new WebClient();
const string strUrl = "http://www.yahoo.com/";
byte[] reqHTML;
reqHTML = webClient.DownloadData(strUrl);
UTF8Encoding objUTF8 = new UTF8Encoding();
string html = objUTF8.GetString(reqHTML);
Now the html variable has the entire HTML in it, and you can start parsing away.

Because the browser simply renders the underlying content, the most flexible approach would be to parse the underlying content (html/css/js/whatever) yourself.
I would create a parsing engine that looks for the things your spider application needs.
This could be a basic string searching algorithm which looks for href="" for example and reads the values in order to produce new requests and continue spidering. Your engine could be written to only look for things it is interested in and extended in that way for more functionality.

Getting the Windows System Error Code title/description from its hex number

I'm messing around with some windows functions using p/invoke. Occasionally, I get an error code that is not ERROR_SUCCESS (such an odd name).
Is there a way to look these up within the program? Forexample, if I get error 1017. Can I tell the user
The system has attempted to load or
restore a file into the registry, but
the specified file is not in a
registry file format.
(ERROR_NOT_REGISTRY_FILE: 0x3F9)
Instead of
Error Code: 1017

I'm not sure if there's a niifty .NET wrapper, but you could call the FormatMessage API using P/Invoke.
See this answer for how it would normally be called from native code. Though the question refers to grabbing error codes from HRESULTs, the answer also applies for retreiving codes from the regular OS error codes coming from GetLastError/GetLastWin32Error).
EDIT: Thanks Malfist for pointing me to pinvoke.net, which includes alternative, managed API:
using System.ComponentModel;
string errorMessage = new Win32Exception(Marshal.GetLastWin32Error()).Message;
Console.WriteLine(errorMessage);

You could take the defines from winerror.h at Rensselaer Polytechnic Institute, and put them into an Enum:
public enum Win32ErrorCode : long
{
ERROR_SUCCESS = 0L,
NO_ERROR = 0L,
ERROR_INVALID_FUNCTION = 1L,
ERROR_FILE_NOT_FOUND = 2L,
ERROR_PATH_NOT_FOUND = 3L,
ERROR_TOO_MANY_OPEN_FILES = 4L,
ERROR_ACCESS_DENIED = 5L,
etc.
}
Then if your error code is in a variable error_code you would use :
Enum.GetName(typeof(Win32ErrorCode), error_code);

I landed on this page while in search of a managed alternative to calling FormatMessage through P/Invoke.
As others have said, there is no way to get those capitalized, underscored names, short of looking them up in winerror.h, which I have seen reproduced online in various places where I landed in the course of searching for information about resolving specific status codes. A quick Google search, for winerror.h, itself, uncovered a page, at Rensselaer Polytechnic Instutute, where someone has helpfully extracted the #define statements from it.
Looking at it gave me an idea; I think there may be a way to get there, working from the source code of winerror.h, which I have, as part of the Windows Platform SDK that ships with every recent version of Microsoft Visual Studio.
Right now, I am in the middle of sorting out a pressing issue in the .NET assembly that brought me to this page. Then, I'll see what I can cobble together; this kind of challenge is right up my alley, and somebody threw down a gauntlet.

Yes there's a function that does that but I don't remember what it is. In the mean time, you can use the error lookup tool (Tools->Error Lookup) to see what a particular code means from within Visual Studio.