UpdatableExtensionAttribute.FilterValue property
namespace: Serenity.Data.Mapping assembly: Serenity.Net.Data
Constant value of a field in extension table that will be filtered in extension table in addition to key. For example, if you have a CustomerAddresses table, and your join condition is T0.CustomerID = ca.CustomerID and ca.AddressType = 'Billing', your FilterField is AddressType and your FilterValue is 'Billing'
public object FilterValue { get; set; }