Disable inserted lines in multiline TextBox

Posted by Shohin on Stack Overflow See other posts from Stack Overflow or by Shohin
Published on 2012-09-23T21:30:01Z Indexed on 2012/09/23 21:37 UTC
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text

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textbox

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locking

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multiline

I have a multiline Textbox for my web page. When user logs in and enters text and press "Save" button, data will be saved. Then, next time when the same user logs in and searches for data, I want him to edit only new text in multiline TextBox, not removing or replacing previously entered text.

Is there any way to make multiline TextBox to lock inserted lines or inserted text and allow to only add text?

Thanks in advance.

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