jQuery/JS Common - Object Structures - positionConfig - at

The at option can take on an object containing the x and y fields, which specify horizontal and vertical position specifier respectively, or a string value consisting of horizontal and vertical position specifiers separated by a space (e.g., "left top"). The default value for each position specifier is "center". If you assign the "left" value to this option, it will be converted to the "left center" value.

position: { at: 'left bottom' };

When using a widget as an ASP.NET MVC 5 Control or a DevExtreme-Based ASP.NET Core Control, specify this option using the HorizontalAlignment and VerticalAlignment enums in the following manner.

@(Html.DevExtreme().WidgetName()
    .Position(p => p
        .At(HorizontalAlignment.Right, VerticalAlignment.Bottom)
    )
)

@(Html.DevExtreme().WidgetName() _
    .Position(Sub(p)
        p.At(HorizontalAlignment.Right, VerticalAlignment.Bottom)
    End Sub)
)