border around my webgrid

I would like to have a border around my webgrid. I am using WebGrid.GetHtml, can the htmlAttributes parameter be used to set the border?
 
The following code shows htmlAttributes: border="1", but I get an error line under the word border that states, "The name border does not exist in the current context."
 
            @gridEvent.GetHtml(
                fillEmptyRows: false,
                htmlAttributes: border="1",
                alternatingRowStyle: "alternate-row",
                headerStyle: "grid-header&q ...