DisplayAttribute.Order Property

Columns are sorted in increasing order based on the order value. Columns without this attribute have an order value of 0. Negative values are valid and can be used to position a column before all non-negative columns. If an order is not specified, presentation layers should consider using the value 10000. This value lets explicitly-ordered fields be displayed before and after the fields that do not have a specified order.

The following example shows how to set the order weight of the LastName field to -9. The other fields in the entity have the default order weight of zero. Therefore, the LastName field will be displayed first.

[MetadataType(typeof(EmployeeMD))]
public partial class Employee {
    public class EmployeeMD {
        [Display(Name = "Last Name", Order = -9, 
        Prompt = "Enter Last Name", Description="Emp Last Name")]
        public object LastName { get; set; }

        [Display(Name = "Manager", AutoGenerateFilter=false)]
        public object Employee1 { get; set; }
    }
}

.NET Framework

.NET Framework Client Profile

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference