Question 87926 in ASP.NET Question posted in
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Read a json object in a post call and get value from all the name value pairs – Asp.net

JSON parsed to Web API Post Call (Body)

{
    "Name1": "Value1",
    "Name2": "Value2",
    "Name3": "Value3",
    "Name4": "Value4"
}

Lets call this object NameValueObject

 public class NameValueObject
    {
        public Name1 { get; set; }
        public Name2 { get; set; }
        public Name3 { get; set; }
        public Name4 { get; set; }
     }

What I would like to see is to be able to parse the json object and convert it into a list

public async Task<List<NameValueObject>> EvaluateJson ([FromBody] NameValueObject request)
{
  string serializerequest = JsonConvert.SerializeObject(request);
  //What do i next , I just to want to get a list of the values sent through the json object

}
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2

Answers


  1. 0

    You can get all the values of your properties in the NameValueObject by using Reflection and Linq like this:

    var values = nameValueObject.GetType().GetProperties().Select(v => v.GetValue(nameValueObject));

    If you would like to get both the name of the property and the value you can create a dictionary like this:

    var dictionary = nameValueObject.GetType().GetProperties().ToDictionary(v => v.Name, v => v.GetValue(nameValueObject));
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  2. 0

    you can create List< NameValueObject > objects

    var json= JsonConvert.Serialize(request);

List<NameValueObject> objects = JsonConvert.DeserializeObject<Dictionary<string, string>>(json)
.Select(i => new NameValueObject {Name=i.Key, Value=i.Value} )
.ToList();

    or just list of values

    var json= JsonConvert.Serialize(request);
                                     
List<string> values=JsonConvert.DeserializeObject<Dictionary<string, string>>(json)
 .Select(i => i.Value )
.ToList();

    if you want List< NameValueObject > , you will have to create this class

    public class NameValueObject
{
    public string Name { get; set; }
    public string Value { get; set; }

}

    or I would prefer this

    public async Task<List<NameValueObject>> EvaluateJson ([FromBody] JObject jsonObject)
{
   return  jsonObject.Properties()
            .Select ( i => new NameValueObject {
             Name =  i.Name, Value = (string) i.Value }).ToList();
}

    or just list of values

    List<string> Values = jsonObject.Properties().Select( i => (string) i.Value ).ToList();
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