JsonConvert string to integer about digit grouping symbol

Hi Guys,

I get an error that is 'Could not convert string to integer: 3.500. Path 'Quantity'' while json converting to object.

json :

{"ProductCalcKey":"xxx","PaperType":"1","Quantity":"3.500"}

object:

public class UnitPrice

{

public int UnitPriceId { get; set; }

public int QuantityMin { get; set; }

public int QuantityMax { get; set; }

public decimal Price { get; set; }

public string ProductCalcKey { get; set; }

public PaperType? PaperType { get; set; }

public int Quantity { get; set; }

}

I am using the following method.

protected object FromJsonToObject(Type t)

{

Context.Request.InputStream.Position = 0;

string json;

using (var reader = new StreamReader(Context.Request.InputStream))

{

json = reader.ReadToEnd();

}

// todo: string to integer such as '222.222.222'

return JsonConvert.DeserializeObject(json, t, new IsoDateTimeConverter());

}

How can I solve this problem without touching jsontext ?

json

Updated on 20-Jun-2013

public class FormatConverter : JsonConverter
{
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
throw new NotImplementedException();
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
if (objectType == typeof(int))
{
return Convert.ToInt32(reader.Value.ToString().Replace(".", string.Empty));
}
return reader.Value;
}
public override bool CanConvert(Type objectType)
{
return objectType == typeof(int);
}
}

[Test]
public void ConvertJson()
{
const string Json = "{\"ProductCalcKey\":\"xxx\",\"PaperType\":\"1\",\"Quantity\":\"3.500\"}";
var o = (UnitPrice)JsonConvert.DeserializeObject(Json, typeof(UnitPrice), new FormatConverter());
Assert.AreEqual(3500, o.Quantity);
}

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JsonConvert string to integer about digit grouping symbol

Dag Hammarskjold

1 Answers

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