c＃ - 无法将类型'oAuthCredentials'隐式转换为'string'

I'm trying to get comments from linkedin by using API

我试图通过使用API来获取来自linkedin的评论

But I'm getting an error, in few places

但是我在一些地方遇到了错误

Can anyone help me to resolve an error?

任何人都可以帮我解决错误吗？

I've written this code

我写了这段代码

 protected void Page_Load(object sender, EventArgs e)
    {
        var request = new RestRequest { Path = "posts?order=recency&category=discussion" };

        var credentials = new OAuthCredentials

        {
            ConsumerKey = "kmkzt9cqml1s", 
            ConsumerSecret = "hNiwIrZWGSMykoD2", 
        };


        var client = new RestClient()
        {
            Authority = "http://api.linkedin.com/v1/groups/345455/",
            Credentials = credentials//Here I'm getting an error
        };

        //Here how to create Request method
        var MyInfo = client.Request(request);

        String content = MyInfo.Content;

        string strURL = "http://api.linkedin.com/";
        System.Net.HttpWebRequest objWebRequest = null;
        System.Net.HttpWebResponse objWebResponse = null;
        System.IO.StreamReader streamReader = null;
        string strHTML = null;

        System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate(object s, System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Security.Cryptography.X509Certificates.X509Chain chain, System.Net.Security.SslPolicyErrors sslPolicyErrors) { return true; };

        objWebRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(strURL);
        objWebRequest.PreAuthenticate = true;
        objWebRequest.Method = "GET";

        objWebRequest.Credentials = System.Net.CredentialCache.DefaultCredentials;

        objWebResponse = (System.Net.HttpWebResponse)objWebRequest.GetResponse();

        streamReader = new System.IO.StreamReader(objWebResponse.GetResponseStream());

        strHTML = streamReader.ReadToEnd();


        streamReader.Close();
        objWebResponse.Close();
        objWebRequest.Abort();

        Response.ContentType = "text/xml";
        Response.Write(strHTML);
        Response.End();

    }

RestClient.cs

 public class RestClient
  {
    private string _consumerKey = "";
    private string _consumerSecret = "";

    #region Properties
    public string Authority
    {
        get
        {
            return _consumerKey;
        }
        set { _consumerKey = value; }
    }

    //Here giving string
    public string Credentials
    {
        get
        {
            return _consumerSecret;
        }
        set { _consumerSecret = value; }
    }
    #endregion
}

How to create Request() Method? Any ideas? Thanks in advance.

如何创建Request（）方法？有任何想法吗？提前致谢。

4 个解决方案

#1

As the error says, you're trying to assign a OAuthCredentials object (credentials) into a string typed attribute of the RestClient object : Credentials.

如错误所示，您尝试将OAuthCredentials对象（凭据）分配到RestClient对象的字符串类型属性：凭据。

You have to either do Credentials = credentials.toString() or change the RestClient class.

您必须执行Credentials = credentials.toString（）或更改RestClient类。

#2

Your RestClient has a Credentials property that is a string; Your code is trying to put something that isn't a string (in your case, an OAuthCredentials) into it. This is not a allowable, as there is no implicit conversion between the two types.

您的RestClient具有Credentials属性，该属性是一个字符串;您的代码正在尝试将不是字符串的内容（在您的情况下，OAuthCredentials）放入其中。这不是允许的，因为两种类型之间没有隐式转换。

#3

In RestClient, Credentials is string, but you are affecting a OAuthCredentials to it ( Credentials = credentials ).

在RestClient中，凭据是字符串，但您正在影响它的OAuthCredentials（凭据=凭据）。

Try changing the type of the property (and the backing field) Credentials to OAuthCredentials.

尝试将属性（和支持字段）的凭据类型更改为OAuthCredentials。

#4

Credentials is not of type OAuthCredentials, it's of type string, so you can't assign it with your credentials variable, which is of type OAuthCredentials. Since the RestClient class references a variable named _consumerSecret, and such and so, let's assume you actually want to do this:

凭据不是OAuthCredentials类型，它的类型为字符串，因此您无法使用您的凭证变量（OAuthCredentials类型）对其进行分配。由于RestClient类引用了一个名为_consumerSecret的变量，所以我们假设你真的想要这样做：

Authority = credentials.ConsumerKey;
Credentials = credentials.ConsumerSecret;

#1