public static PropertiesDescriptor <T> Int64 <T>(this PropertiesDescriptor <T> propertiesDescriptor,
Func <NumberPropertyDescriptor <T>, INumberProperty> selector)
where T : class
{
// Validate parameters.
if (propertiesDescriptor == null)
{
throw new ArgumentNullException(nameof(propertiesDescriptor));
}
if (selector == null)
{
throw new ArgumentNullException(nameof(selector));
}
// Modify and return.
return(propertiesDescriptor.NumberProperty(selector, NumberType.Long));
}