CRM 2011 - C# 插件

Question

我有一个使用 C# 的 CRM 2011 插件：Synchronus，Post-Operation 和 Not-Sandbox。 无论何时启动，该插件都是第一次正常运行。但我的问题是当我第二次调用插件时（使用其他 GUID），实体将具有第一次调用的值。因此，我没有只是调用的新实体属性，而是拥有旧实体的属性（第一次调用）。这个问题有什么解决办法吗？ 请注意，我已经尝试过异步模式并且工作正常，但是我需要在调用 Web 服务后在屏幕上显示错误消息，因此我需要它处于同步模式。

插件CLass:

 namespace FNBChangeCustomerInfGroup
{
public abstract class Plugin : IPlugin
{
    public IServiceProvider _serviceProvider;
    public IOrganizationServiceFactory _organizationServiceFactory;
    public IPluginExecutionContext _pluginExecutionContext;
    public IOrganizationService _organizationService;
    public ResourceManager _resourceManager;
    public Lazy<Helper> _helper;

    public IPluginExecutionContext PluginExecutionContext
    {
        get
        {
            if (_pluginExecutionContext == null)
            {
                _pluginExecutionContext = _serviceProvider.GetService(typeof(IPluginExecutionContext)) as IPluginExecutionContext;
                if (_pluginExecutionContext == null)
                {
                    throw new InvalidOperationException("Cannot get Execution Context");
                }
            }
            return _pluginExecutionContext;
        }
    }

    public IOrganizationServiceFactory OrganizationServiceFactory
    {
        get
        {
            if (_organizationServiceFactory == null)
            {
                _organizationServiceFactory = _serviceProvider.GetService(typeof(IOrganizationServiceFactory)) as IOrganizationServiceFactory;
                if (_organizationServiceFactory == null)
                {
                    throw new InvalidOperationException("Cannot get Service Factory");
                }
            }
            return _organizationServiceFactory;
        }
    }

    public IOrganizationService OrganizationService
    {
        get
        {
            if (_organizationService == null)
            {
                _organizationService = OrganizationServiceFactory.CreateOrganizationService(_pluginExecutionContext.UserId);
                if (_organizationService == null)
                {
                    throw new InvalidOperationException("Cannot get Organization Service");
                }
            }
            return _organizationService;
        }
    }

    protected virtual ResourceManager ResourceManager
    {
        get
        {
            if (_resourceManager == null)
            {
                _resourceManager = new ResourceManager(Constants.File_Resources, Assembly.GetExecutingAssembly());
                if (_resourceManager == null)
                {
                    throw new InvalidOperationException("Cannot access Resources file");
                }
            }
            return _resourceManager;
        }
    }

    protected Lazy<Helper> Helper
    {
        get
        {
            if (_helper == null || !_helper.IsValueCreated)
            {
                _helper = new Lazy<Helper>(() => new Helper(_organizationService));
            }
            return _helper;
        }
    }


    public IExtensibleDataObject CheckType<ExtensibleDataObjectType>(string entityLogicalName) where ExtensibleDataObjectType : IExtensibleDataObject, new()
    {
        // Check if the input parameters property bag contains a target
        // of the operation and that target is of type EntityReference.
        if (PluginExecutionContext.InputParameters.Contains(Constants.InputParameter_Target) && PluginExecutionContext.InputParameters[Constants.InputParameter_Target] is ExtensibleDataObjectType)
        {
            // Obtain the target business entity from the input parameters.
            IExtensibleDataObject entity = (PluginExecutionContext.InputParameters[Constants.InputParameter_Target]) as IExtensibleDataObject;

            // Verify that the entity represents a risk carrier quote.

            if (typeof(Entity).IsAssignableFrom(typeof(ExtensibleDataObjectType)))
            {
                if (!String.Equals(((Entity)entity).LogicalName, entityLogicalName)) { return null; }
            }
            else if (typeof(EntityReference).IsAssignableFrom(typeof(ExtensibleDataObjectType)))
            {
                if (!String.Equals(((EntityReference)entity).LogicalName, entityLogicalName)) { return null; }
            }

            return entity;
        }
        else
        {
            return null;
        }
    }

    public virtual void Execute(IServiceProvider serviceProvider)
    {
        this._serviceProvider = serviceProvider;
    }
}

}

Answer 1

当插件 class 包含字段时会发生这种情况。插件 classes 不允许是有状态的，因为它们由 CRM 平台实例化一次，然后重复使用。因此，这些 classes 上的字段不是线程安全的。

检查你的 CRMPluginBase class。查看方法 base.CheckType<Entity>() 很可能这个 class 有一个包含 IPluginExecutionContext 实例的私有字段。重新设计您的插件库 class 并确保它根本不包含实例字段。