在使用for循环时,let对象具有字符串类型,即使我迭代的对象是在接口中定义的类型.

以下是我正在使用的代码.当尝试访问在接口上定义的mapping.attribute作为字符串时,我得到错误[属性'属性'在类型'字符串'上不存在.

我有以下界面和功能:

interface IMapping {
    attribute: string;
    property: string;
}

mapAttributes(mappings: IMapping[], values) {            
    for (let mapping in mappings) {
        if (mapping.hasOwnProperty("attribute")) {
            console.log(this.attributes.find(attribute => attribute.name === mapping.attribute).value);
        }
    }
}

如何定义for循环以便我可以使用在我的界面中定义的属性？

我有以下代码,基本上它接受一个动态对象(在这种情况下是类型文件)并使用HTTPClient类尝试POST到a WebAPI controller,我遇到的问题是控制器总是获取NULL我的[FromBody]参数上的值.

码

var obj = new
        {
            f = new File
            {
                Description = description,
                File64 = Convert.ToBase64String(fileContent),
                FileName = fileName,
                VersionName = versionName,
                MimeType = mimeType
            },
        }

var client = new HttpClient(signingHandler)
{
   BaseAddress = new Uri(baseURL + path) //In this case v1/document/checkin/12345
};

client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));                        

HttpResponseMessage response;
action = Uri.EscapeUriString(action);

//Obj is passed into this, currently it is of type File 
var content = new StringContent(JsonConvert.SerializeObject(obj).ToString(),
            Encoding.UTF8, …