Telerik Kendo MVC TextBox Multiline Mode

If you want a textarea, I'd recommend doing it this way:

@Html.TextArea("textarea", "", new { @class="k-textbox", style = "width: 100%;" })

as their demo shows. This will allow you to get the same Kendo styling, if that's what you're going for.

If you want to use with a model:

@Html.TextAreaFor(x => x.Description, new { @class = "k-textbox", style = "width: 100%;", placeholder = "Notes... Descriptions..." })