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Comments and Discussions
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Very neat. You got my 5.
You can improve your solution by allowing embedding images from the Clipboard without saving them to the file. This way your document will become completely self sufficient. I have tried the approach and it works just fine. The only change I did is the introduction of HtmlEditControl.EmbeddImages property and the alternative image injection routine handlePaste:
if (EmbeddImages)
{
byte[] data = File.ReadAllBytes(file);
string imageContent = System.Convert.ToBase64String(data, 0, data.Length);
File.Delete(file);
html = string.Format(@"<img src=""data:image;base64,{0}"" />", imageContent);
}
else
html = string.Format(@"<img src=""{0}"" id=""Img{1}"" />", file, DateTime.Now.Ticks);
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Thanks a lot!
Seems to work starting in IE 8 or above [^].
Any performance issues on this, in your opinion?
Wollen Sie ganz einfach Ihre eigene Homepage erstellen, ohne HTML-Kenntnisse, einfach, professionell und mit viel Freude? Probieren Sie unser Desktop Content Management System (CMS) Zeta Producer für Windows aus. Komplett mit eigenem Shop, Gästebuch, Weblog, Bildergalerien, Integration von YouTube-Videos. Wir haben eine aktive Anwender-Community, schnellen Support, sympathische Support-Mitarbeiter.
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Cannot really tell about the performance.
Though even if indeed it affects the performance for me it is still worth to have this option as it is the only way to have fully self sufficient document without resorting to the MHT format.
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While playing more with the control I noticed that double-clicking the word does not select it. Is there any magic property I need to set in order to enable the behavior?
Thanks
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Yeah! That is a really strange thing, that started with IE10 (i assume you are using it, too).
I do have applications that host the web browser editor control that do allow double-clicking and some that don't.
Until now I found no cause of this. If you have any idea, it would be great 
Wollen Sie ganz einfach Ihre eigene Homepage erstellen, ohne HTML-Kenntnisse, einfach, professionell und mit viel Freude? Probieren Sie unser Desktop Content Management System (CMS) Zeta Producer für Windows aus. Komplett mit eigenem Shop, Gästebuch, Weblog, Bildergalerien, Integration von YouTube-Videos. Wir haben eine aktive Anwender-Community, schnellen Support, sympathische Support-Mitarbeiter.
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Yes it is IE10. I do not really mind it as it brings Spell Checking though ignoring double-clicking is indeed annoying.
I see no reason for this behavior and honestly I would even go with the manual selection of the word on double-click. But the problem is that I cannot intercept the mouse event. Not even with WndProc in the main form.
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Thanks heaps very neat
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Fehler beim Versuch der SecurityTransparent-Methode "ZetaHtmlEditControl.HtmlEditControl.getHtml(System.Windows.Forms.IDataObject)" systemeigenen Code über die Methode "ZetaHtmlEditControl.HtmlEditControl.GlobalLock(System.Runtime.InteropServices.HandleRef)" aufzurufen. Methoden müssen sicherheitskritisch oder sicher sein, um systemeigenen Code aufzurufen.
I've tried to Copy a String from one row to another into the same control...
(I added a Binding to DocumentText-Property)
Is there any possibility to fix this problem?
modified 14 Feb '13 - 10:47.
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Seems like some strange security issue.
Can you comment on your environment?
Wollen Sie ganz einfach Ihre eigene Homepage erstellen, ohne HTML-Kenntnisse, einfach, professionell und mit viel Freude? Probieren Sie unser Desktop Content Management System (CMS) Zeta Producer für Windows aus. Komplett mit eigenem Shop, Gästebuch, Weblog, Bildergalerien, Integration von YouTube-Videos. Wir haben eine aktive Anwender-Community, schnellen Support, sympathische Support-Mitarbeiter.
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First of all, thank you for your reply!
My Environment is a Windows7 Professional x64 machine (2,5Ghz, 8GB RAM) using ActiveDirectory for user management. I use Visual Studio 2010 Professional and SQL Server 2008.
And additionally we can't ctrl+x the text out from the control...
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Running the HTML Editor app as admin or non-admin?
If non-admin, does the error disappear if you select "run as administrator"?
Wollen Sie ganz einfach Ihre eigene Homepage erstellen, ohne HTML-Kenntnisse, einfach, professionell und mit viel Freude? Probieren Sie unser Desktop Content Management System (CMS) Zeta Producer für Windows aus. Komplett mit eigenem Shop, Gästebuch, Weblog, Bildergalerien, Integration von YouTube-Videos. Wir haben eine aktive Anwender-Community, schnellen Support, sympathische Support-Mitarbeiter.
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The user that i use is a Domain Admin.
I tried it with "Run as Administrator" but the same error occurs.
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I found that if I delete all of the html source in the source edit window the control throws an exception. I traced the exception to private
IHTMLTable2 CurrentSelectionTable
....
IHTMLTxtRange rng = CurrentSelectionText;
element = rng.parentElement(); <-----
To get around this I check CurrentSelectionText first.
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Yes, better checking rng for non-NULL first.
Wollen Sie ganz einfach Ihre eigene Homepage erstellen, ohne HTML-Kenntnisse, einfach, professionell und mit viel Freude? Probieren Sie unser Desktop Content Management System (CMS) Zeta Producer für Windows aus. Komplett mit eigenem Shop, Gästebuch, Weblog, Bildergalerien, Integration von YouTube-Videos. Wir haben eine aktive Anwender-Community, schnellen Support, sympathische Support-Mitarbeiter.
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Hi Uwe Keim, I think you should be very busy at work, but i have some question.
1. When i paste a webpage to the control, it show me the page very well but when i retrieve the html code, the form show me characters that not are correct (á,é,í,ó), how can i solve this problem?.
2. Can i save the all the content included images, like a richtextbox using its property .rtf. This is because, i want to implement a email program like outlook using sql2010, and i want to save all the content to share with all users.
Thanks a lot, greats from Perú. Please i need to solve this problem soon.
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Hello, very useful control!
But I have some problems with special characters. For example the german characters ä, ü, ö, ß.
I set the property CompleteDocumentText with a html-code. But if there any special character, the control shows me a ? instead Ö
Know someone how I can solve this problem?
Thank You!
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hi, did you solve your problem.. i have the same.
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Hi Arthur,
Unfortunately not. Now i use a simple text control.
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i had this problem and found the solution.
you have to use System.Web.HttpUtility.HtmlEncode
but before using it, you have to hack some chars such as < or > or ? otherwise HttpUtility will translate them.
Sample :
String text = this.htmlEditUserControl1.HtmlEditControl.DocumentText.Replace('<', (char)1);
text = text.Replace('>', (char)2);
text = text.Replace('&', (char)3);
text.Replace("\r\n", "");
text = System.Web.HttpUtility.HtmlEncode(text);
text = text.Replace((char)1, '<');
text = text.Replace((char)2, '>');
text = text.Replace((char)3, '&');
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Hi,
Thank you for this editor,
How we can change font?
Rgerds
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Very Helpfull. Thanks for sharing
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Thanks for this control, it's great. How can I change Font type?
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I've referenced the ZetaHtmlEditControl in a Visual Studio 2010 VB Class Library project and added the control via the Toolbox to a Windows Form. However, when I debug my assembly and load the form I get this error:
"Could not load file or assembly 'ZetaHtmlEditControl, Version=1.1.03, Culture=neutral, PublicKeyToken=2e2e5ba5da72b6c0' or one of its dependencies. The system cannot find the file specified." However, the ZetaHtmlEditControl.dll (and HttpServer.dll and SgmlReaderDll.dll) are clearly present in the Debug directory.
Note that this Class library is actually hosted by a commercial application (Colligo Contributor) that allows extending its UI via its SDK. So I debug by launching their .exe which then detects and loads my registered custom assembly into their AppDomain or whatever. Perhaps this architecture is complicating things.
Regardless, any ideas?
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Most likely there are som CRTs or other "system" DLLs missing.
I'll recommend the following:
1.) Download and install our tool "Zeta Test" from http://www.zeta-test.com[^]
2.) Look in the installation folder "C:\Program Files (x86)\Zeta Test\Applications" (default)
3.) Copy all Microsoft DLLs to your solution, namely: msvc*.dll, stdole.dll, microsoft.mshtml.dll, Microsoft*.manifest and maybe others, too.
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 General  News  Suggestion  Question  Bug  Answer  Joke  Rant  Admin
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A small wrapper class around the Windows Forms 2.0 WebBrowser control
| Type | Article |
| Licence | CPOL |
| First Posted | 17 Nov 2009 |
| Views | 55,209 |
| Downloads | 12,080 |
| Bookmarked | 123 times |
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