Storing a column in a variable

Question

I wanted a formatted text to be converted into unformatted text in the UI . for that I did the following

        String strInput;
        String strOutput;
        strInput = txtEditorAnswer.Text;
        strOutput = Regex.Replace(strInput, "<[^>]*>", String.Empty).Trim();
        txtEditorAnswer.Text = strOutput;
        txtEditorAnswer.Text = Server.HtmlEncode(txtEditorAnswer.Text);

but as it changes the value in the Database also, so its creating a problem for future. Now I need to change the text after being inserted into the database. What should I do?