serialization - How to serialize container classes using custom serializer in C# -
i need serialize container classes hasvalue property evaluated true.
i don´t need remove invalid elements container list prior serialization. serializer should able determine objects need serialized or not. guess custom serializer can suitable need don´t know how figure out this. other solution / best practice appreciated.
here classes
public static class containerfactory { public static container create() { var container = new container(); container.persons.addrange(new[] { new person { firstname = "thomas" }, new person { firstname = "andrew", lastname = "martin", vehicles = new vehicles { new vehicle { hsn = "65976ghr", tsn = "huzukl"} } }, new person { firstname = "arnold", lastname = "beckmann", vehicles = new vehicles { new vehicle { hsn = "345xxxhz"}, new vehicle { hsn = "659juki", tsn = "787999hgf"} } } }); return container; } } [serializable] public class container { public container() { persons = new persons(); } public persons persons { get; set; } public void serialize() { var serializer = new xmlserializer(typeof (container)); var streamwriter = new streamwriter(@"c:\container.xml", false); serializer.serialize(streamwriter, this); } } public class persons: list<person> { } public class vehicles: list<vehicle> { public vehicles() { } public vehicles(ienumerable<vehicle> vehicles):base(vehicles) { } } [serializable] public class person : ihasvalue { public person() { this.vehicles = new vehicles(); this.id = guid.newguid().tostring(); } public string id { get; set; } public string firstname { get; set; } public string lastname { get; set; } public vehicles vehicles { get; set; } public bool hasvalue { { return !string.isnullorempty(this.firstname) && !string.isnullorempty(this.lastname); } } } public interface ihasvalue { bool hasvalue { get;} } public class vehicle: ihasvalue { public string hsn { get; set; } public string tsn { get; set; } public bool hasvalue { { return !string.isnullorempty(hsn) && !string.isnullorempty(tsn); } } } //using .net xmlserializer test container container container = containerfactory.create(); container.serialize(); console.writeline("press key continue..."); console.readline(); output
<?xml version="1.0" encoding="utf-8"?> <container xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns:xsd="http://www.w3.org/2001/xmlschema"> <persons> <person> <id>76cdcc18-b256-40fe-b813-cd6c60e682ca</id> <firstname>thomas</firstname> <vehicles /> </person> <person> <id>26623bf9-d799-44d2-bc1a-7ec91292d1cd</id> <firstname>andrew</firstname> <lastname>martin</lastname> <vehicles> <vehicle> <hsn>65976ghr</hsn> <tsn>huzukl</tsn> </vehicle> </vehicles> </person> <person> <id>f645cde1-10c8-4df5-81df-9b9db7712ec3</id> <firstname>arnold</firstname> <lastname>beckmann</lastname> <vehicles> <vehicle> <hsn>345xxxhz</hsn> </vehicle> <vehicle> <hsn>659juki</hsn> <tsn>787999hgf</tsn> </vehicle> </vehicles> </person> </persons> how can achieve goal serialize vehicles/persons hasvalue == true?
you need use:
- iserializable interface - every class want serialize , every property want in different node need use appropriate attribute. @ example here
- when serialize class check if
hasvalue == true
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