.net c# asp.net make part of Textbox text bold

Question

I have a .NET C#/Aspx web application in which users fill in fields and the resulting form is emailed out. I have a requirement to allow users to highlight text and then make that text either bold or coloured or both.

I have done a bit of searching on the net and found that javascript might be the best option. However, when the script inserts the html tags - it doesn't render within the textbox.I know this is a limitation of the asp.net textbox but is there anyway around this?

<script type="text/javascript"> 

function formatText(tag) {
    var selectedText = document.selection.createRange().text;

    if (selectedText != "") {
        var newText = "<" + tag + ">" + selectedText + "</" + tag + ">";
        document.selection.createRange().text = newText;
    }
} 

Answer 1

你需要一个像ckeditor这样的富文本编辑器。

Answer 2

Instead reinventing the wheel, take a look at a rich text editor, like for example TinyMCE you can strip it down, so the user only have the options like bold or italic.

More info how to create a simple example can be found here:

Create a very simple TinyMCE wysiwyg Editor

Answer 3

Cannot be done in a Textbox.Go for any RichTextEditor. (CKEDITOR or CLEEDITOR)