Properties as fields

[rick...@gmail.com]

Hi friends, I'm using Sharpkit Express at my application, but there´s some weird stuff happening.

When it converts this class:

    [DataContract]

    [JsType(JsMode.Json, AutomaticPropertiesAsFields = true, PropertiesAsFields = true)]

    public class DTOProcesso : ITranslate

    {

        [DataMember]

        [JsProperty(NativeField = true)]

        public int? NumeroProcesso { get; set; }

        [DataMember]

        [JsProperty(NativeField = true)]

        public int? NumeroProcessoAnterior { get; set; }

And I call this piece of code at my code:

var x = dtoProcesso.NumeroProcessoAnterior.Value.ToString();

It will generate this code:

var x = dtoProcesso.NumeroProcessoAnterior.get_Value().toString();

Which will end up in an error, since my class doesn´t have the property getter.

What´s the point? I've decorated the class trying to make Sharpkit generate the properties as fields, but without success.

[Dan-el Khen]

Hi,

.NET Nullables aren't exactly fully supported in runtime. 

One simple option is to use JsNumber instead of int?, which is nullable since it's a class. But it looks like you're trying to re-use your server-side code, so in your case, you can either avoid the use of the 'Value' property of Nullable, it's pretty simple if you use the .As<T>() extension method, or simply treat the int? as if it's an int, examples:

if(p.NumeroProcesso==null) { }

if(p.NumeroProcesso>7) { }

var x = p.NumeroProcesso.As<JsNumber>();

//use x natively from here

Another thing you can do, is to remap the Nulleable<T>.Value property as a Name="" using some SharpKit attributes, it goes something like this I think:

[assembly: JsProperty(TargetType=typeof(Nullable<T>), TargetProperty="Value", Name="", NativeField=true)]

If you need help with this just let me know.

Cheers

Dan-el Khen

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[rick...@gmail.com]

Wow, thanks for the quick answer!

I removed the .value part and it works pretty well.

Last question, not wanting to abuse, but there is a specific reason for a very similar class with this be generating enumerators with the "GetEnumerator()" syntax , even though with the attributes "NativeEnumerator, NativeArrayEnumerator" signed?

Again, lot of thanks.

[Dan-el Khen]

I'm not sure if I understand your question, can you provide a code example for it? 

By the way, another small thing, you can remove AutomaticPropertiesAsFields=true as well as PropertiesAsFields, since in Json mode these are set by default. You can see it here:

https://github.com/SharpKit/SharpKit-SDK/blob/master/Defs/JavaScript/JsAttributes.cs#L220

Cheers

D.