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Applying bold or italic or underline to a selection in a text area

Posted on 2009-04-14
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Last Modified: 2013-12-12
Hi,

I was wondering if it is possible to have an area of selected text be made bold (or italic/underline - i only need 1 but all 3 would be great) and then stored in a SQL database using a escape() string over AJAX.

Currently I have a from which calls a javascript function which then AJAX's an escape() string (to keep whitespaces).

I would like to be able to display the bold in 3 ways:

1. In the text area itself as it is being made (happy for this to be in tag form)

2. In the textarea when recalled for editing (again happy for this to be in tag form)

3. As actual bold text when displayed in a standard HTML page as I display my current output, simply as a paragraph.

I am not looking for a WYSIWYG style editor or anything like that, simply the option to add bold.  If there is an easy way to size as well that would be great but a bonus.
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Question by:Vanq69
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4 Comments
 
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Accepted Solution

by:
sunithnair earned 500 total points
ID: 24136586
Try this code. This will add the necessary tags to the selected text inside a textarea. You can store them in database and later retrieve it which will automatically show up with tags when editing and formatted when shown in the browser as HTML.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<script type="text/javascript">
function formatText(el,tag)
{
    var selectedText = document.selection?document.selection.createRange().text:el.value.substring(el.selectionStart,el.selectionEnd);
    if(selectedText!='')
    {
        var newText='<'+tag+'>'+selectedText+'</'+tag+'>';
        el.value=el.value.replace(selectedText,newText)
    }
} 
</script>
</head>
<body>
<form action="" id="myForm">
<textarea name="myTextarea" rows="12" cols="50">This is just some sample text in the text area. You will be able to select some text here and click on the buttons below to add html tags to it</textarea><br>
<input type="button" value="Bold" onclick="formatText(myTextarea,'b')" />
<input type="button" value="Italic" onclick="formatText(myTextarea,'i')" />
<input type="button" value="Underline" onclick="formatText(myTextarea,'u')" />
</form>
</body>
</html> 

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Author Comment

by:Vanq69
ID: 24136644
That is perfect, thank you so much.  Exactly what I wanted and worked easily.

Really is a credit when people are able to be so helpful.

Thank you.
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Author Closing Comment

by:Vanq69
ID: 31569823
Brilliant assistance with working example.
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LVL 16

Expert Comment

by:sunithnair
ID: 24136782
No Problem. The credit should also go to the person in this forum http://forums.devshed.com/javascript-development-115/textarea-bold-on-selected-area-512438.html. This is where I found the solution.
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