Develop Reference

52/5000 How to get a certain value in html code by c #

i want search spacial value in html code by webbrowser in c#. for example html code<span class="pulser " data-dollari="164.843956376000000" eq_toman="_XcUOV" pulser-change="_OiuVD" pre-dollari="164.964899983000000">$164.97</span>i need Getting the value "164.964899983000000" and another value html code.

If I understand you correctly, you want to get an element from a site and get its attribute values like 'pre-dollari'.
For c#, you can use ScrapySharp , it's a library where you can simulate a webbrowser and scrape its contents. You can use it alongside htmlAgilityPack
to effectively traverse the elements.
So for your case, it could look like this.
// get your Url
Uri url = new Uri("Yoursite.com");
// open up the browser
ScrapingBrowser browser = new ScrapingBrowser();
// navigate to your page
WebPage page = browser.NavigateToPage(url, HttpVerb.Post, "", null);
// find your element, convert to a list and take the first result [0]
HtmlNode node2 = page.Find("span", By.Class("pulser")).ToList()[0];
// and now you can get the attribute by name and put it in a variable
string attributeValue = node2.GetAttributeValue("pre-dollari", "not found");
// attributeValue = 164.964899983000000

address an object by retrieving the ID name of the object from a variable

Good evening,
I am trying to get the following done. I have seen a similar post but it was related with Unity.
Anyway, I am on web forms in asp.net and I have a radiobuttonList with ID="id001"
so on my code behind, I would normally be able to get the selected value by just doing:
string value = id001.SelectedValue
However, in this situation, I don't know the exact ID name, so I have a function that retrieves it. So now I have the variable with the name of the ID. So I want to be able to now, convert the value of that variable in something like this:
string foundid = "id001"
string foundidvalue = id001.SelectedValue
I hope this makes sense.
Thanks in advance for the help.

I am assuming this one is related to your previous question. So, when you found the control, instead of using function to get the fullname, you can do like this:
foreach (Control c in Page.Form.Controls.OfType<RadioButtonList>())
{
if (c.ID.Contains("id"))
{
// string FullID = c.ID.ToString();
var radioButtonList = c as RadioButtonList;
var selectedValue = radioButtonList.SelectedValue;
}
}

You want to use FindControl.
string foundid = "id001";
var foundCtrl = (RadiobuttonList)FindControl(foundid);
var result = foundCtrl.SelectedValue;

Get email address from the url with and without escape character of # in c#

I have a Url as shown below
http://www.mytestsite.com/TesPage.aspx?pageid=32&LangType=1033&emailAddress=myname%40gmail.com
I would like to have the email address from the url
Note
The email address may have the escape character of # sometimes.
ie it may be myname%40gmail.com or myname#gmail.com
Is there any way to get the email address from a url, such that if the that have the matching regx for an email patten and retrieve the value.
Here is the code that i have tried
string theRealURL = "http://www.mytestsite.com/TesPage.aspx?pageid=32&LangType=1033&emailAddress=myname%40gmail.com";
string emailPattern = #"^([\w\.\-]+)(((%40))|(#))([\w\-]+)((\.(\w){2,3})+)$";
Match match = Regex.Match(theRealURL, emailPattern);
if (match.Success)
string campaignEmail = match.Value;
If anyone helps what went wrong here?
Thanks

If possible, don't use a regular expression when there are domain-specific tools available.
Unless there is a reason not to reference System.Web, use
var uri = new Uri(
"http://www.mytestsite.com/TesPage.aspx?pageid=32&LangType=1033&emailAddress=myname%40gmail.com");
var email = HttpUtility.ParseQueryString(uri.Query).Get("emailAddress");
Edit: If (for some reason) you don't know the name of the parameter containing the address, use appropriate tools to get all the query values and then see what looks like an email address.
var emails = query
.AllKeys
.Select(k => query[k])
.Where(v => Regex.IsMatch(v, emailPattern));
If you want to improve your email regex too, there are plenty of answers about that already.

Starting with Rawling's answer in response to the comment
The query string parameter can vary.. How can it possible without using the query string parameter name.
The follwing code will produce a list (emails) of the emails in the supplied input:
var input = "http://www.mytestsite.com/TesPage.aspx?pageid=32&LangType=1033&emailAddress=myname%40gmail.com";
var queryString = new Uri(input).Query;
var parsed = HttpUtility.ParseQueryString(queryString);
var attribute = new EmailAddressAttribute();
var emails = new List<string>();
foreach (var key in parsed.Cast<string>())
{
var value = parsed.Get(key);
if (attribute.IsValid(value))
emails.Add(value);
}
Console.WriteLine(String.Join(", ", emails)); // prints: myname#gmail.com
See also this answer for email parsing technique.

Remove specific lines in a multiline textbox

I have a Multiline textbox who I can paste URL's. The URL's will be paste into a string variable. Now I want, that just URL's from a specific domain can pass into the string variable.
For example:
http://domain-1.tld/gfdgfd.php?=2135346432
http://domain-2.tld/fsefes.php?=2145312542
http://domain-1.tld/random/folders/iwadaex.php?=2112313543
http://domain-2.tld/igewex.php?=2135464432
http://domain-1.tld/folder/inwadawx.php?=2135546432
http://domain-2.tld/ihtfhtf.php?=2143534432
I a have a radiobutton with Domain 1 and Domain 2. If Domain 1 is checked, Only URL's from Domain 1 will be put in the variable, and so on.
I just need to know, how I filter the URL's...

var result = textBox1.Text.Split('\n').Where(x => x.Contains(#"http://" + domain)).ToArray();
Edit after your comment :
var str = String.Join(Environment.NewLine, result);

You can get your lines using Lines property then filter them using Where method:
var filteredUrls = textBoxName.Lines.Where(x => x.Contains(someValue)).ToArray();
Then if you want to display them together, you can use String.Join
var output = string.Join(Environment.NewLine, filteredUrls);

Google Calendar API: How to get a CalendarEntry for the default Calendar?

I'm trying to get the 'normal' url for a users default calendar feed (e.g. http://www.google.com/calendar/feeds/jo#gmail.com/private/full). I would like to use the jo#gmail.com part of the URL as a unique ID for that calendar.
I know I can do things with the default calendar using the URL http://www.google.com/calendar/feeds/default/private/full. However, I can't find a way to construct a CalendarEntry from that URL (I could then try SelfUri and some other properties to see if the 'normal' url is in there somewhere), or to convert it to the 'normal' url in any way.
And I know I can get the list of Calendars like this:
CalendarQuery query_cal = new CalendarQuery();
query_cal.Uri = new Uri( "http://www.google.com/calendar/feeds/default/allcalendars/full" );
CalendarFeed resultFeed = (CalendarFeed) service.Query( query_cal );
foreach ( CalendarEntry entry in resultFeed.Entries )
{ ... }
However, I can't find any way to know which of those entries matches the default calendar.
Or any other way to get that normal url for the default calendar.

It's probably not the best method, but I use this and it works:
feedstring = resultfeed.Entries.Item(calendarIndex).Id.AbsoluteUri.Substring(63)
postUristring = "https://www.google.com/calendar/feeds/" & feedstring & "/private/full"
Dim postUri As New Uri(postUristring)
Just use calendarIndex = 0 for the default calendar. Shouldn't be too hard to convert to C#!

Thank you SO much! That works perfectly! Here is my final code:
CalendarQuery query = new CalendarQuery();
query.Uri = new Uri("https://www.google.com/calendar/feeds/default/allcalendars/full");
CalendarFeed resultFeed = (CalendarFeed)service.Query(query);
int calendarIndex = 0;
string postUristring = string.Empty;
foreach (CalendarEntry entry2 in resultFeed.Entries)
{
if (entry2.Title.Text == "My Pregnancy Calendar")
{
string feedstring = resultFeed.Entries[calendarIndex].Id.AbsoluteUri.Substring(63);
postUristring = "https://www.google.com/calendar/feeds/" + feedstring + "/private/full";
}
calendarIndex++;
}