.NET字符串转JSON格式

原JSON字符串

{
    "errcode": 0, 
    "errmsg": "ok", 
    "process_instance": {
        "attached_process_instance_ids": [ ], 
        "biz_action": "NONE", 
        "business_id": "20210125000534484", 
        "create_time": "2021-01-25 16:39:53", 
        "form_component_values": [
            {
                "component_type": "TableField", 
                "ext_value": "{"statValue":[{"id":"MoneyField-JQYS83D4","label":"总报销金额（元）","upper":"贰角伍分","num":"0.25"}],"componentName":"TableField"}", 
                "id": "TableField-MINGXI", 
                "name": "报销明细", 
                "value": "[{"rowValue":[{"componentType":"MoneyField","label":"报销金额（元）","extendValue":"{\"upper\":\"壹角贰分\",\"componentName\":\"MoneyField\"}","value":"0.12","key":"MoneyField-JQYS83D4"},{"componentType":"DepartmentField","label":"费用所属小组","extendValue":[{"number":3,"name":"事业部","id":"1567735"}],"value":"事业部","key":"DepartmentField_1F0JU5NK816O0"},{"componentType":"TextNote","label":"说明","value":"1、费用归属总部选行政中心本部。\n5、外联部发生的费用，不能明确区分到下级巴的，费用归属选市场中心本部。\n6、发生的费用涉及各个部门的（如年会费用），归属总部费用选行政中心本部。","key":"TextNote_1XJOZAY9Z6N40"},{"componentType":"DDSelectField","label":"报销类别","extendValue":{"label":"办公费","key":"option_K4JNCM0A"},"value":"办公费","key":"DDSelectField-IZTK5BYV"},{"componentType":"DDSelectField","label":"是否需要入库","extendValue":{"label":"不需要入库（费用）","key":"option_1"},"value":"不需要入库（费用）","key":"DDSelectField-KBT1HP2U"},{"componentType":"TextareaField","label":"费用明细","value":"测试报销（勿批）测试报销（勿批）测试报销（勿批）测试报销（勿批）测试报销（勿批）测试报销（勿批）测试报销（勿批）","key":"费用明细"}]},{"rowValue":[{"componentType":"MoneyField","label":"报销金额（元）","extendValue":"{\"upper\":\"壹角叁分\",\"componentName\":\"MoneyField\"}","value":"0.13","key":"MoneyField-JQYS83D4"},{"componentType":"DepartmentField","label":"费用所属小组","extendValue":[{"number":2,"name":"经营管理部","id":"150926607"}],"value":"经营管理部","key":"DepartmentField_1F0JU5NK816O0"},{"componentType":"TextNote","label":"说明","value":"1、归属总部费用选行政中心本部。","key":"TextNote_1XJOZAY9Z6N40"},{"componentType":"DDSelectField","label":"报销类别","extendValue":{"label":"餐饮费","key":"option_K4JNCM0H"},"value":"餐饮费","key":"DDSelectField-IZTK5BYV"},{"componentType":"DDSelectField","label":"是否需要入库","extendValue":{"label":"不需要入库（费用）","key":"option_1"},"value":"不需要入库（费用）","key":"DDSelectField-KBT1HP2U"},{"componentType":"TextareaField","label":"费用明细","value":"测试报销（勿批）测试报销（勿批）测试报销（勿批）测试报销（勿批）测试报销（勿批）测试报销（勿批）测试报销（勿批）","key":"费用明细"}]}]"
            }, 
            {
                "component_type": "DDSelectField", 
                "ext_value": "{"label":"总部","key":"option_2"}", 
                "id": "DDSelectField_WBK6D86XC0", 
                "name": "费用所属院区", 
                "value": "总部"
            }
        ], 
        "operation_records": [
            {
                "date": "2021-01-25 16:39:53", 
                "operation_result": "NONE", 
                "operation_type": "START_PRESS_INSTANCE", 
                "userid": "24104569292501"
            }
        ], 
        "originator_dept_id": "1508735", 
        "originator_dept_name": "总部-经营中心-扩展事业部", 
        "originator_userid": "24104567501", 
        "result": "", 
        "status": "RUNNING", 
        "tasks": [
            {
                "activity_id": "334d_43", 
                "create_time": "2021-01-25 16:39:53", 
                "task_result": "NONE", 
                "task_status": "RUNNING", 
                "taskid": "67206622", 
                "url": "aflow.dingtalk.com?procInsId=578ba9-eb2c-4f9d-903b-0dc002038&taskId=672063722&businessId=20210125534484", 
                "userid": "141547300126278817"
            }
        ], 
        "title": "***提交的集团报销"
    }, 
    "request_id": "8p3gj9629iq7"
}

字符串转JSON

因为form_component_values里的详情返回的不是JSON格式，需要转义

要提取报销金额，承担部门等

string strcdbm = listValueVO[1].Value.ToString(); //承担部门编码(费用所属院区)

                    string strbxsm = listValueVO[0].Value;//报销说明.这个listValueVO[0]就是form_component_values节点
                    JArray jarry = (JArray)JsonConvert.DeserializeObject(strbxsm);
                    //JArray jarry = JArray.Parse(jo["rowValue"].ToString());
                    string thisid = "1";//分录ID
                    string parentId = business_id;//主表Id

                    for (var i02 = 0; i02 < jarry.Count; i02++)
                    {
                        JObject j = JObject.Parse(jarry[i02].ToString());

                        JArray jarry1 = JArray.Parse(j["rowValue"].ToString());
                        JObject jk0 = JObject.Parse(jarry1[0].ToString());//报销金额0.12
                        JObject jk1 = JObject.Parse(jarry1[1].ToString());//承担部门编码150867735
                        JObject jk3 = JObject.Parse(jarry1[3].ToString());//费用项目编码，名称办公费

                        string thisAmount = jk0["value"].ToString();//报销金额
                        string payDepart = jk1["extendValue"].ToString();//承担部门编码
                        payDepart = payDepart.Substring(payDepart.IndexOf("id")+2);
                        payDepart = payDepart.Replace(""", "").Replace(":", "").Replace("}", "").Replace("]", "").Replace(" ", "");
                        string costItem = jk3["value"].ToString();//费用项目编码
                                                                  //for (var k = 0; k < jarry1.Count; k++)
                                                                  //{
                                                                  //    //JObject jk = JObject.Parse(jarry1[k].ToString());
                                                                  //}
                        string a03 = "";
                    }

                    string a02 = "";