ChannelFactory 凭证 +对象是只读的

发布于 2024-08-24 08:53:31 字数 306 浏览 6 评论 0原文

您好，当我尝试按如下方式设置工厂凭据时，问题是什么：

ChannelFactory<IWCFSeekService> factory = Factory;
if (factory != null)
{
    factory.Credentials.UserName.UserName = CServiceCredentials.Instance.Username;
    _Channel = factory.CreateChannel();
}

我收到一个异常，该对象是只读的。当我想设置用户名时会发生这种情况。

原文

Greetings, what is the problem that when I try to set credentials for my factory as follows:

ChannelFactory<IWCFSeekService> factory = Factory;
if (factory != null)
{
    factory.Credentials.UserName.UserName = CServiceCredentials.Instance.Username;
    _Channel = factory.CreateChannel();
}

I get an exception that object is read-only. It occurs when I want to set username.

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空气里的味道 2024-08-31 08:53:31

是的，MSDN 文档非常清楚：

C#
public ClientCredentials Credentials { get; }

该属性仅有一个get访问器 - 无set访问器 -->它是只读的。

另外在 MSDN 文档中：

备注
存储 ClientCredentials 对象
作为一种端点行为，可以
通过行为访问
属性。
OnOpened 方法初始化一个
的只读副本
ClientCredentials 对象
工厂。

那你来这里做什么？

更新：您无法设置客户端代理应该在通道工厂上使用的用户凭据。请参阅此关于如何做到这一点的优秀博客文章 - 有点绕道：

首先，从工厂中删除默认端点行为，
其次，实例化您自己的凭据

第三，将这些新凭据设置为新凭据工厂中的端点行为

// 第一步 - 查找并删除默认端点行为 
var defaultCredentials = factory.Endpoint.Behaviors.Find();
工厂.Endpoint.Behaviors.Remove(defaultCredentials); 

// 第二步 - 实例化您的凭证
ClientCredentials 登录凭据 = new ClientCredentials();
loginCredentials.UserName.UserName = CServiceCredentials.Instance.Username;
loginCredentials.UserName.Password = “密码123”;

// 第三步 - 将其设置为工厂中的新端点行为
工厂.Endpoint.Behaviors.Add(loginCredentials); //添加需要的

似乎有点奇怪和复杂，但这似乎是实现这一目标的唯一方法！

Yes, the MSDN documentation is pretty clear:

C#
public ClientCredentials Credentials { get; }

The property only has a get accessor - no set accessor --> it's readonly.

Also in the MSDN docs:

Remarks
The ClientCredentials object is stored
as a type of endpoint behavior and can
be accessed through the Behaviors
property.
The OnOpened method initializes a
read-only copy of the
ClientCredentials object for the
factory.

So what is it you're doing to do here??

UPDATE: you cannot set the user credentials that your client proxy is supposed to use on the channel factory. See this excellent blog post on how to do it anyway - with a bit of a detour:

first, remove the default endpoint behavior from the factory
secondly, instantiate your own credentials

thirdly, set those new credentials as new endpoint behavior on factory

// step one - find and remove default endpoint behavior 
var defaultCredentials = factory.Endpoint.Behaviors.Find<ClientCredentials>();
factory.Endpoint.Behaviors.Remove(defaultCredentials); 

// step two - instantiate your credentials
ClientCredentials loginCredentials = new ClientCredentials();
loginCredentials.UserName.UserName = CServiceCredentials.Instance.Username;
loginCredentials.UserName.Password = “Password123″;

// step three - set that as new endpoint behavior on factory
factory.Endpoint.Behaviors.Add(loginCredentials); //add required ones

Seems a bit odd and complicated, but that seems to be the one and only way to achieve this!

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独夜无伴 2024-08-31 08:53:31

为了完成这个答案，它对每个人都起作用的实际方式，如

http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/4668e261-0fd0-4ca5-91d2-497aa479f2a9/

您不需要删除，而是覆盖找到凭据：

var credentialBehaviour = factory.Endpoint.Behaviors.Find < ClientCredentials > ();
credentialBehaviour.UserName.UserName = "test";
credentialBehaviour.UserName.Password = "test";

这解决了我的问题。

To complete this answer, the actual way in which it worked for everyone as explained at

http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/4668e261-0fd0-4ca5-91d2-497aa479f2a9/

You need not to remove, but override found credentials:

var credentialBehaviour = factory.Endpoint.Behaviors.Find < ClientCredentials > ();
credentialBehaviour.UserName.UserName = "test";
credentialBehaviour.UserName.Password = "test";

This has solved my problem.

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