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How to break up a large text string from a SQL Server nvarchar(max) field

We have a VS 2010 C# form that requires the the end user to give a detailed explanation to a question.  This question is stored in SQL 2008 R2 as nvarchar(max) When generating the text to a text file, the field runs off the page and does not care about margin.  Is there a way to have this field formatted adhere to certain margins when written to the text file? Since the user may or mat not use a cr in the textbox, there could be paragraphs of text.  I would think the best way would be to put some kind of logic in and programatically insert \r\n
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iamtheiam
Asked:
iamtheiam
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iamtheiamAuthor Commented:
in case anyone is thinking "why nvarchar(max)?"  We need to be able to store english, spanish and vietnamese answers.  This was the only data type that we could find that would store the answer correctly.
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iamtheiamAuthor Commented:
             string narrative = GetWritingTestResultDetails[0].narrative;
                string nwline = "";
                string[] stokens = narrative.Split(new char[] { ' ' });
                char[] seps = new char[] { ' ' };
                if (narrative.Length <= 85)
                {
                    sw.WriteLine(narrative);
                }
                else
                {
                    stokens = narrative.Split(new char[] { ' ' });
                    seps = new char[] { ' ' };
                    nwline = "";
                    foreach (string ss in narrative.Split(seps))
                    {
                        nwline += ss + " ";
                        if (nwline.Length > 85)
                        {
                            sw.WriteLine(nwline);
                            nwline = "";
                        }
                    }
                    if (nwline.Length < 85)//to capture the last line
                    {
                        sw.WriteLine(nwline);
                        nwline = "";
                    }
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