How to save HTML code tag with breaks line in SQL server when using [allowhtml] attribute in model

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C#

MVC5

I want to save below code with line breaks on sql server :

<code>
public static void main()
{
      Console.WriteLine("Hello");
}
</code>

for save upper code, my model property should have [AllowHtml] attribute. my model has this attribute:

public class MyModel
{
  [AllowHtml]
  [UIHint("RichEditor")]
  public string Content { get; set; }
}

when saving html code tag in sql server, result is that below code save in database and line breaks ingnored :

<code>public static void main(){Console.WriteLine("Hello");}</code>

I use asp.net mvc. can anyone help me?

What I have tried:

Nothing...no idea....................