title: convert aspx textbox value to html formatted text
body: <p>In my application for sending an Inquiry mail, i have a text box for enter address..
  if i type address in the textbox like below</p>
  
  <pre><code>33A, sector -8,   /*Pressed enter Key*/
  Sanpada,         /*Pressed enter Key*/
  Navi mumbai.
  </code></pre>
  
  <p>it should be display in the mail as like</p>
  
  <pre><code>33A, sector -8, 
  Sanpada,
  Navi mumbai.
  </code></pre>
  
  <p>but it is displaying like</p>
  
  <pre><code>33A, sector -8, Sanpada,Navi mumbai.
  </code></pre>
  
  <p>my code for sending mail is </p>
  
  <pre><code>string content = "";
  string sub = "";
  content = File.ReadAllText(Server.MapPath("../mail/MasterJnenquiry.html"));
  content = content.Replace("##CustomerCompanyName##", txtCompanyName.Text);
  content = content.Replace("##CompanyName##", txtCompanyName.Text);
  content = content.Replace("##ContactName##", txtContactname.Text);
  content = content.Replace("##ContactNo##", txtContactNo.Text);
  content = content.Replace("##EmailId##", txtemailid.Text);
  content = content.Replace("##EnquiryMessage##", txtenqmess.Text);
  content = content.Replace("##Designation##", txtdesignation.Text);
  content = content.Replace("##Address##", txtadress.Text);
  content = content.Replace("##ProductDetails##", txtProductdetails.Text);
  sub = "お客様のお問い合わせ≪インドの窓口≫";
  </code></pre>
  
  <p>how to display textbox text in the mail in html format??</p>