Carriage return in text area

问题

I have to allow the user to enter carriage returns in text areas; something like:

Sentence 1
Sentence 2
...

I have to persist those carriage returns when loading and saving data. I use jQuery on the client side, and .NET on the server. Any suggestions on how to approach?

Thanks.

回答1:

If by "persist" the line breaks (CRLF) you mean that you want to display it properly, as SO does, you need to remeber to replace the CRLF pair with <br/>CRLF.

Otherwise, all your text will appear sequentially.

回答2:

You don't need to do anything special. That's what <textarea>s do, and unless you make a specific effort to strip out the newlines on the server side you'll load the save them with a standard string no problem.

回答3:

Use jQuery .val() hook:

$.valHooks.textarea = {
    get: function( elem ) {
        return elem.value.replace( /\r?\n/g, "\r\n" );
    }
};

来源：https://stackoverflow.com/questions/1036185/carriage-return-in-text-area