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[CLOSED] JSON deserialize model fields to one nested object

  1. #1
    Jul 11, 2012, 5:18 PM

    [CLOSED] JSON deserialize model fields to one nested object

    Hi, I try to find solution for this but unsuccessfully. Her is the problem:

    In model of grid panel I have some model fields: 

    fields.Add(Html.X().ModelField().Name("ObracunskiPeriod_ID").Type(ModelFieldType.Int));
                                            fields.Add(Html.X().ModelField().Name("ObracunskiPeriod_Naziv"));
    To controller I send data as json string using parameter:

    Parameter stavke = new Parameter { Name = "pStavke", Value = "Ext.encode(App.GridPanelStavke.getRowsValues())", Mode = ParameterMode.Raw };
    On server I try to deserialize json string to list of objects:

            public ActionResult SacuvajRacun(string p1, string pStavke)
        {
                List<StavkaDokumenta> _stavke = JSON.Deserialize<List<StavkaDokumenta>>(pStavke);
        }

    I need to deserialize on this way: ObracunskiPeriod_ID and ObracunskiPeriod_Naziv serialize to ObracunskiPeriod object:

        public class ObracunskiPeriod
    {
        [JsonProperty(PropertyName = "ObracunskiPeriod_ID")]
        public int Op_ID { get; set; }

        [JsonProperty(PropertyName = "ObracunskiPeriod_Naziv")]
        public string Op_Naziv { get; set; }
     }
    ObracunskiPeriod is one preoperty of StavkaDokumenta:

        public class StavkaDokumenta
    {
        public ObracunskiPeriod Sd_ObracunskiPeriod { get; set; }
    }

    How can I deserialize this?
    Last edited by Daniil; Jul 12, 2012 at 12:26 PM. Reason: [CLOSED]
  2. #2
    Jul 12, 2012, 9:30 AM
    Hi,

    You seems to be on the right way suing the JsonProperty attribute.

    The following appears to be working as you need if I correctly understand the requirement.

    Example
    <%@ Page Language="C#" %>

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>

<%@ Import Namespace="Newtonsoft.Json" %>

<script runat="server">
    class Test
    {
        [JsonProperty(PropertyName = "someProp1")]
        public string Property1 { get; set; }
        [JsonProperty(PropertyName="someProp2")]
        public string Property2 { get; set; }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        string json = "{ someProp1 : '1', someProp2 : '2'}";

        Test test = JSON.Deserialize<Test>(json);

        X.Msg.Alert("Test", test.Property1 + " " + test.Property2).Show();
    }

</script>

<!DOCTYPE>

<html>
<head runat="server">
    <title>Ext.NET v2 Example</title>
</head>
<body>
    <ext:ResourceManager runat="server" />
</body>
</html>
  3. #3
    Jul 12, 2012, 10:01 AM
    Yes, that is correct, but problem is because I have list where Test class is property. Maybe this example explains my problem:


    class Class1
    {
        public Test MyTest { get; set; }
    }

class Test
    {
        [JsonProperty(PropertyName = "someProp1")]
        public string Property1 { get; set; }
        [JsonProperty(PropertyName="someProp2")]
        public string Property2 { get; set; }
    }
    string json = "[{ someProp1 : '1', someProp2 : '2'}, { someProp1 : '3', someProp2 : '4'}, { someProp1 : '5', someProp2 : '6'}]";

List<Class1> list1 = JSON.Deserialize<List<Class1>>(json);
  4. #4
    Jul 12, 2012, 10:10 AM
    Well, this
    List<Class1>
    expects a JSON string like this:
    string json = @"[{
        MyTest : { 
            someProp1 : '1', 
            someProp2 : '2'
        }
    }, {
        MyTest : { 
            someProp1 : '3', 
            someProp2 : '4'
        }]";
    If you can't change the JSON string, then you could deserialize that into
    List<Test>
    Then convert 
    List<Test>
    to 
    List<Class1>
    using C#. I think it should be possible via lambda expressions.
  5. #5
    Jul 12, 2012, 10:18 AM
    I get JSON string from grid panel fields: 

    fields.Add(Html.X().ModelField().Name("someProp1"));
fields.Add(Html.X().ModelField().Name("someProp2"));
    with this code:

    Ext.encode(App.GridPanelStavke.getRowsValues())
    Is any way to chahge model fields structure to give me json string that I expect?
  6. #6
    Jul 12, 2012, 10:23 AM
    Quote Originally Posted by boris View Post
    Is any way to chahge model fields structure to give me json string that I expect?
    Only manually I think.

    var values = grid.getRowsValues();
// convert values to get an appropriate JSON string
  7. #7
    Jul 12, 2012, 10:51 AM
    Ok, thanks. I am going to do that manualy.

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