我如何序列化json文件输入中的嵌套数组？

Question

我的程序正在接收json文件输入，该文件由内部的嵌套数组组成。 我设法在不使用数组的情况下反序列化json，但是当数组内部出现问题时。

我的Json文件：

[
    {   "ReportType": "Manual",
        "ReportDate": "09/05/2019",
        "Department": "IT",
        "Branch": "CT",
        "Category": "Account Management",
        "SubCategory": "A/C Opening",
        "Title": "Online Onboarding",
        "Attachments": [
            {
            "AttachmentName": "Attachment 1",
            "Content": "Content 1",
            }
            {
            "AttachmentName": "Attachment 2",
            "Content": "Content 2",
            }
            {
            "AttachmentName": "Attachment 3",
            "Content": "Content 3",
            }
        ]
    }
]

我的模特：

public class DMSAccountOpeningServiceModel
    {
        public string ReportType;

        public DateTime ReportDate;

        public string Department;

        public string Branch;

        public string Category;

        public string SubCategory;

        public string Title;

        public AttachmentServiceModel[] Attachments;
    }


    public class AttachmentServiceModel
    {
        public string AttachmentName;

        public string Content;
    }

我的代码：

public List<DMSAccountOpeningServiceModel> GetAttachmentJson(string attachment)
        {
            List<DMSAccountOpeningServiceModel> items;
            using (StreamReader r = new StreamReader(attachment))
            {
                string json = r.ReadToEnd();
                items = JsonConvert.DeserializeObject<List<DMSAccountOpeningServiceModel>>(json);

            }
            return items;
        }}

我遇到错误：“在解析值后遇到意外字符：{。路径'[0] .Attachments [0]'，第14行，位置3。”