I am using the RichTextBox control in Windows Forms to convert RTF to plain text. In the RTF document there is a string like "www.google.com" which the RichTextBox control converts to a URL. However, if I omit the preceding "http" or "www" (e.g. "google.com"), the string is not converted to a URL.
How can I get the RichTextBox control to convert these strings to URLs?
you can use this post and this msdn for guldens - How to: Display Web-Style Links with the Windows Forms RichTextBox Control
The practice is pretty easy: RichTextBox contains LinkClicked property to help you achieve your goal and you use it by invoking event:
this.richTextBox1.LinkClicked += new System.Windows.Forms.LinkClickedEventHandler(this.richTextBox1_LinkClicked);
If you really want, you can extend the base class and create your custom RichTextBox to support DetectUrls.
Related
I am trying to format a hyperlink in a Rich Text Box using the Rich Text Format. I can get basic formatting working thanks to this answer, for example making text bold. However I cannot get the RTF formatted hyperlink to work. I found an example of making an RTF link here. However, when I try to put this in the Rich Text Box as seen below, it causes my application to crash. Any suggestions as to what i'm missing here?
string my_hyperlink_text = #"{\field{\*\fldinst HYPERLINK \"http://www.google.com/\"}{\fldrslt Google}}"
if (rtbControl is RichTextBox & rtbControl.Name == "name_of_control") // Making sure the control is a RichTextBox
{
RichTextBox rtb = rtbControl as RichTextBox;
rtb.Rtf = my_hyperlink_text;
}
An easy way for getting rtfs to work is to write your text in Microsoft word, copy & paste it to Wordpad and the saving it as a RTF from there.
The detour with MS Word is needed, because WordPad does not support entering links in the UI, although it handles them correctly when they come from other sources, like the clipboard. Also, MS Word creates massively bloated rtf.
The rtf file you create this way can then be opened in any text editor and can be used as a string constant in your program.
In your case, I suppose that the prefix and maybe the color table are missing and are causing the problem.
By the way: Wordpad is not much more than a wrapper around the Windows rtf control, i.e. the same control that you are using in your code.
I have written a winform application where i have a form with richtextbox control populated with string. I need to search specific pattern of string from the the string in the richtextbox control when user presses ctr+F just like we Find specific pattern of string in notepad++. Do i need to create the Find window by myself or is there any default Find window control which I can use?
Any help is highly appreciated.
You have to create a window that finds the specific character/word or sentence what you want. Windows Form Control doesn't provide any kind of UI facility to find your string. It is also depends on that from where you want to find the string. you must have an editor like Textbox, RichTextbox or any control which contains string values like DataGridView, WebBrowser Control, ListView etc. but, each control can have their own method to find a specific string. for example if you want to find a string in RichTextBox then you have to call the method from that particular control (richTextBox1.Find(...)). You can't find the string from all controls globally.
If you want to implement the feature in particular control like TextEditor (Word Pad) then there is an example on Code Project site that you can refer.
RichTextBox Control with Find functionality
How can I show rtf strings in a RichTextBlock (or any other UI text element)? There's no rtf property I could use (different from .net I think). And if I bind the string to the normal text property I only get the rtf code itself.
So is there a way to do this? Otherwise I'd display the string as HTML in a WebView element. But I'd prefer a RichTextBlock.
Use a RichEditBox instead of RichTextBlock. You can inject RTF with RichEditBox.Document.SetText() method. RichTextBlock isn't an RTF control and doesn't understand RTF. The RichEditBox is the only in-box control which supports RTF. If you don't want to use that then you would need to parse the RTF yourself and create the block elements for the RichTextBlock.
I am displaying text in a rich textbox and i want it to show the html formatting on the text. Is there a way to make a rich textbox display html.
If you push the button on the following link you will see how my out put displays, i would like it done in a rich textbox.
http://neil.fraser.name/software/diff_match_patch/svn/trunk/demos/demo_diff.html
Is there a way to build a rich textbox that can display html???
RTF encoding is different from HTML.
If not, then you need to write your own HTML to RTF converter or find something similar.
Writing Your Own RTF Converter. This guy gives a great breakdown of how the program works along with details of the conversion.
An Extended richtextbox control, Check this out. It may solve your solution
Let's say that my textbox control is named messageTB. I would like to know if it is possible to do the following:
messageTB.Text = "Hello <b>World</b>"
and have the output text to show "Hello World". In other words is there a way to enable html markup for the control? I am using visual studio.
The standard windows forms textbox control can't do it.
If you want formatted text you need a richtextbox or some other control.
There's a browser control that you could insert (rather than a textbox or label). Here's how to set the contents...
string html = "<html><body><strong>HelloWorld!</strong></body></html>";
Browser.DocumentText = html;
No. messageTB would have to be a Literal control for this to work.
It's clumsy, but I have used two adjacent Textboxes, one with format set to bold, to do this.
At least I get the look I want on the page.