NewtonSoft add JSONIGNORE at runTime

Question

Am looking to Serialize a list using NewtonSoft JSON and i need to ignore one of the property while Serializing and i got the below code

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Answer 1

Try this:

    public static void IgnoreProperty(this T parameter, Expression> propertyLambda)
    {
        var parameterType = parameter.GetType();
        var propertyName = propertyLambda.GetReturnedPropertyName();
        if (propertyName == null)
        {
            return;
        }

        var jsonPropertyAttribute = parameterType.GetProperty(propertyName).GetCustomAttribute();
        jsonPropertyAttribute.DefaultValueHandling = DefaultValueHandling.Ignore;
    }

    public static string GetReturnedPropertyName(this Expression> propertyLambda)
    {
        var member = propertyLambda.Body as MemberExpression;
        var memberPropertyInfo = member?.Member as PropertyInfo;
        return memberPropertyInfo?.Name;
    }

So you can do this:

carObject.IgnoreProperty(so => so.LastModified);