Best Data annotation for a Decimal(18,2)

Question

I have a column inside my sql server 2008 wih type of Decimal(18,2). But on entity framework what is the best data annotation validation I can apply to this pro

Answer 1

Following on from @Schmalls example (and comment re building it into an attribute) I've created a working example (uses C# 6 string interpolation):

public class PrecisionAndScaleAttribute : RegularExpressionAttribute
{
    public PrecisionAndScaleAttribute(int precision, int scale) : base($@"^(0|-?\d{{0,{precision - scale}}}(\.\d{{0,{scale}}})?)$")
    {

    }
}

Usage:

[PrecisionAndScale(6, 2, ErrorMessage = "Total Cost must not exceed $9999.99")]
public decimal TotalCost { get; set; }