public static void EnableIgnoreNullValuesOnWrite()
{
JsonSerializerOptions options = new JsonSerializerOptions();
options.IgnoreNullValues = true;
var obj = new TestClassWithInitializedProperties
{
MyString = null,
MyInt = null,
MyDateTime = null,
MyIntArray = null,
MyIntList = null,
MyNullableIntList = null,
MyObjectList = new List <object> {
null
},
MyListList = new List <List <object> > {
new List <object> {
null
}
},
MyDictionaryList = new List <Dictionary <string, string> > {
new Dictionary <string, string>()
{
["key"] = null
}
},
MyStringDictionary = new Dictionary <string, string>()
{
["key"] = null
},
MyNullableDateTimeDictionary = new Dictionary <string, DateTime?>()
{
["key"] = null
},
MyObjectDictionary = new Dictionary <string, object>()
{
["key"] = null
},
MyStringDictionaryDictionary = new Dictionary <string, Dictionary <string, string> >()
{
["key"] = new Dictionary <string, string>()
{
["key"] = null
}
},
MyListDictionary = new Dictionary <string, List <object> >()
{
["key"] = new List <object> {
null
}
},
MyObjectDictionaryDictionary = new Dictionary <string, Dictionary <string, object> >()
{
["key"] = new Dictionary <string, object>()
{
["key"] = null
}
}
};
string json = JsonSerializer.Serialize(obj, options);
// Roundtrip to verify serialize is accurate.
TestClassWithInitializedProperties newObj = JsonSerializer.Deserialize <TestClassWithInitializedProperties>(json);
Assert.Equal("Hello", newObj.MyString);
Assert.Equal(1, newObj.MyInt);
Assert.Equal(new DateTime(1995, 4, 16), newObj.MyDateTime);
Assert.Equal(1, newObj.MyIntArray[0]);
Assert.Equal(1, newObj.MyIntList[0]);
Assert.Equal(1, newObj.MyNullableIntList[0]);
Assert.Null(newObj.MyObjectList[0]);
Assert.Null(newObj.MyObjectList[0]);
Assert.Null(newObj.MyListList[0][0]);
Assert.Null(newObj.MyDictionaryList[0]["key"]);
Assert.Null(newObj.MyStringDictionary["key"]);
Assert.Null(newObj.MyNullableDateTimeDictionary["key"]);
Assert.Null(newObj.MyObjectDictionary["key"]);
Assert.Null(newObj.MyStringDictionaryDictionary["key"]["key"]);
Assert.Null(newObj.MyListDictionary["key"][0]);
Assert.Null(newObj.MyObjectDictionaryDictionary["key"]["key"]);
var parentObj = new WrapperForTestClassWithInitializedProperties
{
MyClass = obj
};
json = JsonSerializer.Serialize(parentObj, options);
// Roundtrip to ensure serialize is accurate.
WrapperForTestClassWithInitializedProperties newParentObj = JsonSerializer.Deserialize <WrapperForTestClassWithInitializedProperties>(json);
TestClassWithInitializedProperties nestedObj = newParentObj.MyClass;
Assert.Equal("Hello", nestedObj.MyString);
Assert.Equal(1, nestedObj.MyInt);
Assert.Equal(new DateTime(1995, 4, 16), nestedObj.MyDateTime);
Assert.Equal(1, nestedObj.MyIntArray[0]);
Assert.Equal(1, nestedObj.MyIntList[0]);
Assert.Equal(1, nestedObj.MyNullableIntList[0]);
Assert.Null(nestedObj.MyObjectList[0]);
Assert.Null(nestedObj.MyObjectList[0]);
Assert.Null(nestedObj.MyListList[0][0]);
Assert.Null(nestedObj.MyDictionaryList[0]["key"]);
Assert.Null(nestedObj.MyStringDictionary["key"]);
Assert.Null(nestedObj.MyNullableDateTimeDictionary["key"]);
Assert.Null(nestedObj.MyObjectDictionary["key"]);
Assert.Null(nestedObj.MyStringDictionaryDictionary["key"]["key"]);
Assert.Null(nestedObj.MyListDictionary["key"][0]);
Assert.Null(nestedObj.MyObjectDictionaryDictionary["key"]["key"]);
}
public static void EnableIgnoreNullValuesOnWrite()
{
JsonSerializerOptions options = new JsonSerializerOptions();
options.IgnoreNullValues = true;
var obj = new TestClassWithInitializedProperties
{
MyString = null,
MyInt = null,
MyIntArray = null,
MyIntList = null,
MyObjectList = new List <object> {
null
},
MyListList = new List <List <object> > {
new List <object> {
null
}
},
MyDictionaryList = new List <Dictionary <string, string> > {
new Dictionary <string, string>()
{
["key"] = null
}
},
MyStringDictionary = new Dictionary <string, string>()
{
["key"] = null
},
MyObjectDictionary = new Dictionary <string, object>()
{
["key"] = null
},
MyStringDictionaryDictionary = new Dictionary <string, Dictionary <string, string> >()
{
["key"] = null
},
MyListDictionary = new Dictionary <string, List <object> >()
{
["key"] = null
},
MyObjectDictionaryDictionary = new Dictionary <string, Dictionary <string, object> >()
{
["key"] = null
}
};
string expectedJson =
@"{" +
@"""MyObjectList"":[null]," +
@"""MyListList"":[[null]]," +
@"""MyDictionaryList"":[" +
@"{" +
@"""key"":null" +
@"}" +
@"]," +
@"""MyStringDictionary"":{" +
@"""key"":null" +
@"}," +
@"""MyObjectDictionary"":{" +
@"""key"":null" +
@"}," +
@"""MyStringDictionaryDictionary"":{" +
@"""key"":null" +
@"}," +
@"""MyListDictionary"":{" +
@"""key"":null" +
@"}," +
@"""MyObjectDictionaryDictionary"":{" +
@"""key"":null" +
@"}" +
@"}";
Assert.Equal(expectedJson, JsonSerializer.Serialize(obj, options));
var parentObj = new WrapperForTestClassWithInitializedProperties
{
MyClass = obj
};
expectedJson = @"{""MyClass"":" + expectedJson + "}";
Assert.Equal(expectedJson, JsonSerializer.Serialize(parentObj, options));
}
