学习笔记-将系统单据转换成WebApi中的保存JSON

    系统中已经有了  在线测试webapi功能， 可以通过 填写测试数据，返回保存接口的JSON，所以想通过二开将此功能移植到表单插件上。

一注册表单插件，编写BarItemClick事件。

点击单据菜单，ShowMessage出保存接口的JSON

{
    "NeedUpDateFields": [],
    "NeedReturnFields": [],
    "IsDeleteEntry": "true",
    "SubSystemId": "",
    "IsVerifyBaseDataField": "false",
    "IsEntryBatchFill": "true",
    "ValidateFlag": "true",
    "NumberSearch": "true",
    "IsAutoAdjustField": "false",
    "InterationFlags": "",
    "IgnoreInterationFlag": "",
    "Model": {
        "FID": 0,
        "FBillTypeID": {
            "FNUMBER": "CGHT01_SYS"
        },
        "FBillNo": "CGHT000001EEE",
        "FEndDate": "2023-07-18 00:00:00",
        "FBeginDate": "2022-07-18 00:00:00",
        "FDate": "2022-07-18 00:00:00",
        "FSupplierId": {
            "FNumber": "005"
        },
        "FPurchaseOrgId": {
            "FNumber": "100"
        },
        "FProviderId": {
            "FNumber": "005"
        },
        "FSettleId": {
            "FNumber": "005"
        },
        "FChargeId": {
            "FNumber": "005"
        },
        "FCONTRACTNAME": "444",
        "FISINPUTDETAIL": true,
        "FContractFin": {
            "FISPRICEEXCLUDETAX": true,
            "FSettleCurrId": {
                "FNumber": "PRE001"
            },
            "FPayConditionId": {
                "FNumber": "001"
            },
            "FExchangeTypeId": {
                "FNumber": "HLTX01_SYS"
            },
            "FExchangeRate": 1.0000000000,
            "FPriceTimePoint": "1",
            "FSettleModeId": {
                "FNumber": "JSFS00_SYS"
            },
            "FIsIncludedTax": true,
            "FLocalCurrId": {
                "FNumber": "PRE001"
            }
        },
        "FContractEntry": [
            {
                "FMaterialId": {
                    "FNumber": "0902"
                },
                "FMa