Html.TextBoxFor readonly disabled Razor MVC5

How to set text box to readonly when usingHtml.TextBoxFor?

Syntax for Readonly

 @Html.TextBoxFor(m => m.Email, new {@readonly = "readonly"})

Syntax for Disabled

@Html.TextBoxFor(m=> m.mobile, new {@disabled="true"})

Example for Html TextBoxFor readonly and Disabled

<div class="form-group">

    @Html.LabelFor(m => m.Email, new { @class = "col-md-2 control-label" })

    <div class="col-md-10">

        @Html.TextBoxFor(m => m.Email, new { @class = "form-control", @readonly = "true" })

    </div>

    <div class="col-md-10">

        @Html.TextBoxFor(m => m.mobile, new { @class = "form-control", @readonly = "true" })

    </div>

</div>