Nested JSON Array to C# Class

Question

I am trying to pass along a JSON string for an API I'm writing. Here's what the JSON post looks like:

{"AssociatedApplication":"Postman", "Key":"a274e012c52d4121bda7d1e7a7218cf5", "Subject":"Testing API", "Body":"Testing email API. Muffins.",
"EmailAddresses":[
    {"From":"[email protected]"},
    {"To":"[email protected]"},
    {"To":"[email protected]"},
    {"Cc":"[email protected]"},
    {"Bcc":"[email protected]"}
]
}

Using JSON2Csharp, I have my classes set up as

[NotMapped]
class EmailTransmission
{
    public string AssociatedApplication;
    public string Key;
    public string Subject;
    public string Body;
    public List<EmailAddress> EmailAddresses;
}

[NotMapped]
public class EmailAddress
{
    public string From { get; set; }
    public string To { get; set; }
    public string Cc { get; set; }
    public string Bcc { get; set; }
}

When I use JsonConvert.DeserializeObject<List<EmailAddress>>(email["EmailAddresses"]) it doesn't work and I've tried List<List<string>> List and so forth. What is the type I should use without getting a runtime type binder exception?

David L · Accepted Answer · 2016-08-03 22:06:22Z

3

If that's actually your code, you should be using properties in EmailTransmission, not fields.

Second, your class EmailTransmission needs to be public.

Finally, you should just deserialize the entire object, then pull out what you need afterwards.

JsonConvert.DeserializeObject<EmailTransmission>(email);

Once you've deserialized the entire json string, you can pull off the email addresses.

answered Aug 3, 2016 at 22:06

David L

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1 Comment

David L Over a year ago

@Dreamcasting happy to help!

Mads... · Accepted Answer · 2016-08-04 06:59:04Z

0

Please change your EmailTransmission class as belows

[NotMapped]
class EmailTransmission
{
    public string AssociatedApplication { get; set; }
    public string Key { get; set; }
    public string Subject { get; set; }
    public string Body { get; set; }
    public List<EmailAddress> EmailAddresses { get; set; }
}

answered Aug 4, 2016 at 6:59

Mads...

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