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No se puede obtener un valor del par clave-valor usando [FromBody]

Los datos se envían desde el front-end al back-end. El cuerpo de la solicitud se crea así

 var stateWithValue = {}; for (const item in self.pricings()) { state[item] = self.pricings()[item]["Comment"]; } var request = { generalComment: self.generalComment(), stateWithValue: stateWithValue };

El cuerpo de la solicitud se ve así

 { generalComment: "test comment", stateWithValue: { Delaware: "Value1", California: "Value2", Texas: "Value3" } }

El número de elementos en stateWithValue puede ser diferente para cada solicitud.

En el back-end, los datos se toman usando el atributo [FromBody]

 public WebApiResponseGeneric<EmptyResponse> State([FromBody] StateRequest request)

StateRequest.cs

 public class StateRequest : PublicRequest { public string GlobalComment { get; set; } public StateWithValue StateWithValue { get; set; } } public class StateWithValue { public string State { get; set; } public string Value { get; set; } }

En la pestaña de red (consola de desarrollo), la carga útil se ve así

generalComment: prueba el comentario general stateWithValue[Delaware]: Value1 stateWithValue[California]: Value2 stateWithValue[Texas]: Value3

El problema En el objeto de solicitud de back-end, StateWithValue.State StateWithValue.Value son ambos nulos.

about 4 years ago · Juan Pablo Isaza
2 answers
Answer question

0

También debe publicar la clase PublicRequest. Pero para su cuerpo de solicitud json, su clase debería ser

 public class StateRequest : PublicRequest { public string generalComment{ get; set; } public Dictionary<string, string> stateWithValue { get; set; } }

o cambiar

 public class StateRequest : PublicRequest { public string GlobalComment { get; set; } public List<StateWithValue> StateWithValue { get; set; } }

y javascript

 var stateWithValue = []; for (const item in self.pricings()) { var stateWithValueItem={}; stateWithValueItem.State =item; stateWithValueItem.Value = self.pricings()[item]["Comment"]; stateWithValue.push(stateWithValueItem); }
about 4 years ago · Juan Pablo Isaza Report

0

Para mapear el JSON:

 { generalComment: "test comment", stateWithValue: { Delaware: "Value1", California: "Value2", Texas: "Value3" } }

Necesitaría usar el siguiente modelo de C#

 public class StateRequest : PublicRequest { public string GeneralComment { get; set; } public StateWithValue StateWithValue { get; set; } } public class StateWithValue { public string Dalaware { get; set; } public string California { get; set; } public string Texas { get; set; } }

Si desea mapear varios estados, considere usar una matriz en su lugar, algo como:

 { generalComment: "test comment", stateWithValue: [ State: "Delaware", Value: "Value1", State: "California", Value: "Value2", State: "Texas", Value: "Value3" ] }

Pero su modelo necesitaría ser actualizado para verse así:

 public class StateRequest : PublicRequest { public string GeneralComment { get; set; } public List<StateWithValue> StatesWithValues { get; set; } }

Nota: Hay un error tipográfico con general vs Global en su código de muestra

about 4 years ago · Juan Pablo Isaza Report
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