AxWebBrowser wrongly displays special characters

[ISdotNET]

Hi there,

I am new to this board and would first of all like to wish you all
Happy Hollidays.
As most new users, I joined because I have an issue (problem).

I am using VB.NET in a windows app and have a rich text box on a form
containing text with HTML syntax elements, like
"<b>Hello</b>"

If I click on the button on this form, I write the text box contents
to the text file (saved with html extension) and invoke a form with
an AxWebBrowser control that navigates to that text file.

The browser control displays my formatted text just as I would expect,
with one exception:
Special characters, like the symbol ®, are displayed with another
character as a prefix, like this: ®

I thought it might have to do with the font that I am using (default
MS Sans Serif), but the AxWebBrowser control does not even have a
font property.

Does anyone understand what I am trying to explain? And if so, does
anyone know what my problem is and how I can solve it?

Any help would be greatly appreciated...

IS :D

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[Herfried K. Wagner [MVP]]

* in********@aol-dot-com.no-spam.invalid (ISdotNET) scripsit:

I am new to this board and would first of all like to wish you all
Happy Hollidays.
As most new users, I joined because I have an issue (problem).

I am using VB.NET in a windows app and have a rich text box on a form
containing text with HTML syntax elements, like
"<b>Hello</b>"

If I click on the button on this form, I write the text box contents
to the text file (saved with html extension) and invoke a form with
an AxWebBrowser control that navigates to that text file.

The browser control displays my formatted text just as I would expect,
with one exception:
Special characters, like the symbol ®, are displayed with another
character as a prefix, like this: ®

You will have to include a charset definition in your file. Without
knowing what exactly you write into the file and if it is valid HTML or
XHTML, it's hard to say anything.

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet>

[ISdotNET]

Herfried

First of all, thank you for your response. I am pretty sure that the
included HTML elements are all pure HTML.
As a matter of fact, even if I don't include any HTML elements but
only the character described in my initial question above (in the
middle of the regular text), the display is still wrong.

Sample:

A file named text.html contains the following text

Hello® World

The control displays it like

Hello® World
If I select "View Source" I see the appropriate text in the source
file of the web-control.

You might be right, it could be that I would need to expand the
charset, but I have no idea on how to do that, my web experience is
still limited.

Could you, or anybody else, guide me in the right direction?

Thanks upfront, Happy New Year,

IS :D

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[Cor]

Hi ISdotNet,

Did you try what IE is showing when you use that text?

Cor

First of all, thank you for your response. I am pretty sure that the
included HTML elements are all pure HTML.
As a matter of fact, even if I don't include any HTML elements but
only the character described in my initial question above (in the
middle of the regular text), the display is still wrong.

[Herfried K. Wagner [MVP]]

* in********@aol-dot-com.no-spam.invalid (ISdotNET) scripsit:

First of all, thank you for your response. I am pretty sure that the
included HTML elements are all pure HTML.
As a matter of fact, even if I don't include any HTML elements but
only the character described in my initial question above (in the
middle of the regular text), the display is still wrong.

Sample:

A file named text.html contains the following text

Hello® World

The control displays it like

Hello® World

Does the file show properly if you open it in Internet Explorer?

Are you sure the encoding used to write the file and the encoding
specified in the file are matching?

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet>

[ISdotNET]

Herfried and Cor,

Thank you so much, you guided me in the correct direction.

The actual problem is not the Web control, it is the way I was writing
the data to the html file.

As you suggested, I tried to run the file directly in IE and got the
same bad result. Next, I simply opened the file in Notepad and hit
Save, and guess what, the results in IE were correct.

Here is the analysis of the problem and it's fix.

I wrote to the file by simply saying:

Dim path As String = Application.StartupPath
Dim writer As StreamWriter = New StreamWriter(path &
"/test.html")

Then I read that the StreamWriter saves a file by default with
UTF8Encoding. So I changed the above lines to read as follows:

[i:267cf0d8de]Dim path As String = Application.StartupPath
Dim writer As StreamWriter = New StreamWriter(path & "/test.html",
False, System.Text.Encoding.Unicode)[/i:267cf0d8de]

And that did it ...

Thanks again, maybe one of these days I might be able to help you.

IS :D

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