Removing entries from json string in C#

Question

I have a json string generated as follows:

System.Xml.Serialization.XmlSerializer x = new System.Xml.Serialization.XmlSerializer(typeof(Data));
System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(mdata.GetType());

MemoryStream ms = new MemoryStream();
serializer.WriteObject(ms, mdata);
string json = Encoding.UTF8.GetString(ms.ToArray());

I want the null entries in the mdata structure not to be present in the json string so is there a straightforward way to do so (without having to parse the json string) ?

Thanks

score 1 · Answer 1 · answered Jul 03 '11 at 14:42

1

You can set DataMember attribute option IsRequired to false:

[DataMember(IsRequired = false)]
public int Property { get; set; }

Also, some libraries can exclude default or null values without modifying DataContract classes. For example, Json.NET.

answered Jul 03 '11 at 14:42

msergey

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score 0 · Answer 2 · edited May 23 '17 at 12:04

0

I think this will answer your question: Can JavaScriptSerializer exclude properties with null/default values?

edited May 23 '17 at 12:04

Community

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answered Jul 03 '11 at 14:46

tehshin

866
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Removing entries from json string in C#

2 Answers2