i'm using a little javascript in my website for my navigation bar, which is made up of a few ImageButton controls. in the code behind i have this:
Dim homeImage As String = GetLocalResourceObject("HomeImage")
imgBtnHome.Attributes.Add("OnMouseOver", HomeImage)
and in the resx file, i've tried these, but they don't work: (note the single and double quotes)
key: HomeImage value: "this.src='images/HomeImage.gif'"
key: HomeImage value: "this.src='images/HomeImage.gif'"
can anyone tell me what i'm doing wrong? is it even possible to read "quoted" text from a local resource file?
Yes, you can store quotes in a resx string value. If you look at the XML that's generated for a resource file, you'll see that the quotes are in the value entries.
However, your script isn't going to work with quotes around it. Think of it this way - say you wanted to pop up an alert box. You would do:
imgBtnHome.Attributes.Add("OnMouseOver", "alert('hi')")
NOT
imgBtnHome.Attributes.Add("OnMouseOver", """alert('hi')""");
You're passing in a string value for the script, not a quoted string value. Try removing the double quotes altogether, and leave the single quotes.
Related
When adding data with the block call.StorageValue, the string is saved in firebase with "/" before and after the string,
There does not seem to be any block to remove it, How can I do it?
It's a normal firebase function that allows to separate the values and read them as such.
Example :
on Firebase, "\"English-EN\"" is a single value sent from the app as English-EN
and "[\"863674037411046\",\"863674037411046\",\"863674037411046\",\"863674037411046\"]" is a list of numbers sent as 863674037411046.
Try to retrieve the value with a button and to a simple label and you should see that it's displayed without the extra characters.
Source:check my app "harpokrates". I've made it as a firebase DB management demo and it uses nothing else. All values are stored as you describe and are retrieved just fine, without extra symbols or any need to trim the text.
ps:However if you do have extra symbols at some point, check your use of lists and lists of lists that might generate excessive "\" if you made a mistake somewhere. You can also use the "trim" or "split text" blocks but that would be bad practice. Finding the code error is best.
This is likely an escape character that escapes the special character " (quotation marks). This is common practice to use \ as an escape character to indicate that the next character has special meaning, in this case it is not the start or end of a string but actually part of it.
As such you can't actually remove it (just the escape character) and should consider how you got a quotation mark in the string to begin with.
You should however be able to remove the entire quotation mark \"
I am using RapidXML to read an XML file, parse it, do some operation and write it back.
Any text written in quotes within tag, is printed with quotes in expanded form.
Is there any flag that will prevent expansion of quotes and other special characters.
Any suggestion is welcomed.
I don't believe this will work. Writing the XML is unrelated to how it was created, and changing the parse flags would not affect it.
The whole point of printing XML DOM is to create a well-formed XML that can later be parsed; therefore, I wouldn't expect an XML library to have such an option.
If you want such functionality, you can easily write one by changing the function copy_and_expand_chars in rapidxml_print.hpp
You probably need to turn off entity translation during parsing. Can you try by setting the parse_no_entity_translation flag during parsing?
I'm doing some client-side stuff with Javascript/JQuery with .Net controls which expose their GUID/UniqueIdentifier IDs on the front end to allow them to be manipulated. During debugging something is driving me crazy: The GUIDs in the db are stored in uppercase, however by the time they make it to the front end they're in lowercase.
This means I can't quickly copy and paste IDs into the browser's console to execute JS on the fly when devving/debugging. I have found a just-about-workable way of doing this but I was wondering if anyone knew why this behaviour is the case and whether there is any way of forcing GUIDs to stay uppercase.
According to MSDN docs the Guid.ToString() method will produce lowercase string.
As to why it does that - apparently RFC 4122 states it should be this way.
The hexadecimal values "a" through "f" are output as lower case characters and are case insensitive on input.
Also check this question on SO - net-guid-uppercase-string-format.
So the best thing you can do is to call ToUpper() on your GUID strings, and add extension method as showed in the other answer.
If you're using an Eval template, then I'd see if you can do this via an Extension method.
something like
public static string ToUpperString(this Guid guid, string format = "")
{
string output = guid.ToString(format);
return output.ToUpper();
}
And then in your Eval block,
myGuid.ToUpperString("B")
Or however you need it to look.
I'm on my Mac at the moment so I can't test that, but it should work if you've got the right .Net version.
Using FreeTextBox, I'm capturing HTML-formatted text. The purpose is to allow a website owner to update their web page content on a few pages. I have the system completed except for knowing what to do with the resultant HTML markup.
After the page editor completes their work, I can get the output from FreeTextBox, in html format, like so: <font color="#000080"><b>This is some text.</b></font>
I tried storing it as escaped markup in web.config, but that didn't work since it kept hosing the tags even after I changed them to escaped characters, like so: <font color="#000080">
The reason I wanted to store this kind of string as a key in web.config is that I could successfully store a static string, set a lebel's value to it, and successfully render the text. But when I try to escape it, it gets reformatted in web.config by .Net somehow.
So I escaped all the characters, encoded them as Base64 and stored that. Then on page_load, I tried to decode it, but it just shows up as text, with all the html tags showing as well - it doesn't get rendered. I know a million people use this control, but I'm damned if I can figure out how to do it right.
So here's my question: how can I inject the saved HTML into an edited page so it shows up in browsers like the editor wants it to look?
Try Server.HtmlDecode to output the HTML to the screen.
As a side note, I prefer to use CKEditor for html-formatted input. I found it is the better option among all options (FreeTextBox, TinyMCE, anything else?) and it has got completely rewritten and faster in the version 3.0!
In case anyone comes here for the answer, here's one way to do it.
I had initial problems with web.config changing some of the HTML tags upon storage, so we use B64 encoding (may not be necessary). Store the saved html markup to an AppSettings key in web.config as Base64 encoding, using this for your setting update function. Add error checking and whatever else you need it to do:
'create configuration object
Dim cfg As Configuration
cfg = WebConfigurationManager.OpenWebConfiguration("~")
'get reference to appsettings("HTMLstring")
Dim HTMLString As KeyValueConfigurationElement = _
CType(cfg.AppSettings.Settings("HTMLstring"), KeyValueConfigurationElement)
'get text entered by user and marked up with HTML tags from FTB1, then
'encode as Base64 so we can store it as XML-safe string in web.config
Dim b64String As String = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(FTB1.Text))
'save new value into web.config
If Not HTMLString Is Nothing Then
HTMLString.Value = b64String
cfg.Save()
End If
Next, add a Literal control to the aspx markup:
<asp:Literal id="charHTML" runat="server"/>
To add the saved HTML to the post-edited page, do the following in Page_Load:
'this string of HTML code is stored in web.config as Base64 to preserve XML-unsafe characters that come from FreeTextBox.
Dim injectedHTML As String = System.Text.Encoding.UTF8.GetString(Convert.FromBase64String(AppSettings("HTMLstring")))
'the literal control will directly inject this HTML instead of encoding it
charHTML.Mode = LiteralMode.PassThrough
'set the value
charHTML.Text = injectedHTML
Hope this helps. sF
I'm building an automated RSS feed in ASP.NET and occurrences of apostrophes and hyphens are rendering very strangely:
"Here's a test" is rendering as "Here’s a test"
I have managed to circumvent a similar problem with the pound sign (£) by escaping the ampersand and building the HTML escape for £ manually as shown in in the extract below:
sArticleSummary = sArticleSummary.Replace("£", "£")
But the following attempt is failing to resolve the apostrophe issue, we stil get ’ on the screen.
sArticleSummary = sArticleSummary.Replace("’", "’"")
The string in the database (SQL2005) for all intents and purposes appears to be plain text - can anyone advise why what seem to be plain text strings keep coming out in this manner, and if anyone has any ideas as to how to resolve the apostrophe issue that'd be appreciated.
Thanks for your help.
[EDIT]
Further to Vladimir's help, it now looks as though the problem is that somewhere between the database and it being loaded into the string var the data is converting from an apostrophe to ’ - has anyone seen this happen before or have any pointers?
Thanks
I would guess the the column in your SQL 2005 database is defined as a varchar(N), char(N) or text. If so the conversion is due to the database driver using a different code page setting to that set in the database.
I would recommend changing this column (any any others that may contain non-ASCII data) to nvarchar(N), nchar(N) or nvarchar(max) respectively, which can then contain any Unicode code point, not just those defined by the code page.
All of my databases now use nvarchar/nchar exclusively to avoid these type of encoding issues. The Unicode fields use twice as much storage space but there'll be very little performance difference if you use this technique (the SQL engine uses Unicode internally).
Transpires that the data (whilst showing in SQLServer plain) is actually carrying some MS Word special characters.
Assuming you get Unicode-characters from the database, the easiest way is to let System.Xml.dll take care of the conversion for you by appending the RSS-feed with a XmlDocument object. (I'm not sure about the elements found in a rss-feed.)
XmlDocument rss = new XmlDocument();
rss.LoadXml("<?xml version='1.0'?><rss />");
XmlElement element = rss.DocumentElement.AppendChild(rss.CreateElement("item")) as XmlElement;
element.InnerText = sArticleSummary;
or with Linq.Xml:
XDocument rss = new XDocument(
new XElement("rss",
new XElement("item", sArticleSummary)
)
);
I would just put "Here's a test" into a CDATA tag. Easy and it works.
<![CDATA[Here's a test]]>