尝试从CRM 2011 Web服务接收信息时出错 [英] Error when trying to receive Information from CRM 2011 Webservice

问题描述

尝试从Dynamics CRM 2011检索系统用户信息时收到错误。以下代码有效：

I'm receiving an error while trying to retrieve systemuser information from Dynamics CRM 2011. The following Code works:

public List<CrmUser> GetAllCrmUsers()
{
    List<CrmUser> CrmUsers = new List<CrmUser>();
    using (CrmSdk.OrganizationServiceClient myCrm = new CrmSdk.OrganizationServiceClient("CustomBinding_IOrganizationService1"))
    {
        try
        {

            // this will need to be changed... the address to a key in the app.config and the credentials will need to be whatever is correct for the
            // end server to hit the CRM WCF service
            myCrm.Endpoint.Address = new System.ServiceModel.EndpointAddress("https://devcrm.removed/XRMServices/2011/Organization.svc");
            myCrm.ClientCredentials.Windows.ClientCredential = System.Net.CredentialCache.DefaultNetworkCredentials;


            CrmSdk.ColumnSet colsPrincipal = new CrmSdk.ColumnSet();

            colsPrincipal.Columns = new string[] { "lastname", "firstname", "domainname", "systemuserid" };

            CrmSdk.QueryExpression queryPrincipal = new CrmSdk.QueryExpression();
            queryPrincipal.EntityName = "systemuser";
            queryPrincipal.ColumnSet = colsPrincipal;

            CrmSdk.EntityCollection myAccounts = myCrm.RetrieveMultiple(queryPrincipal);

            foreach (CrmSdk.Entity myEntity in myAccounts.Entities)
            {
                //create new crm users and add it to the list
                CrmUser thisOne = new CrmUser();

                thisOne.firstName = myEntity.Attributes[0].Value.ToString();
                thisOne.lastName = myEntity.Attributes[1].Value.ToString();
                thisOne.userId = myEntity.Attributes[2].Value.ToString();
                thisOne.userGuid = myEntity.Attributes[3].Value.ToString();

                CrmUsers.Add(thisOne);

            }


        }

        catch (Exception ex)
        {
            CrmUser thisOne = new CrmUser();
            thisOne.firstName = "Crap there was an error";
            thisOne.lastName = ex.ToString();
            CrmUsers.Add(thisOne);
        }
    }
    return CrmUsers;
}

但是，当我尝试在调用列集时尝试将 businessunitid添加到ColumnSet时服务我收到一条错误消息，指出：

However if I try to add "businessunitid" to the ColumnSet when I invoke the service I get an error stating:

第1行位置1879错误。元素\ 2004/07 / System.Collections.Generic： value\'包含来自映射到名称\'/ xrm / 2011 / Contracts：OptionSetValue\'的类型的数据。解串器不知道任何映射到该名称的类型。请考虑使用DataContractResolver或添加与已知类型列表中的'OptionSetValue\'相对应的类型-例如，通过使用KnownTypeAttribute属性或将其添加到传递给DataContractSerializer的已知类型列表中。\'

"Error in line 1 position 1879. Element \ 2004/07/System.Collections.Generic:value\' contains data from a type that maps to the name \'/xrm/2011/Contracts:OptionSetValue\'. The deserializer has no knowledge of any type that maps to this name. Consider using a DataContractResolver or add the type corresponding to \'OptionSetValue\' to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding it to the list of known types passed to DataContractSerializer.\'"

此错误是因为根据元数据信息。我尝试在 [数据合约] 标记下添加 [KnownType（typeof（OptionSetValue））] 无济于事，我已经Googling和Binging（？）这两天了，所以如果已经回答了，我表示歉意。

This error is because the data being returned is the type "Lookup" according to the metadata information. I tried adding [KnownType(typeof(OptionSetValue))] just under the [Data Contract] tag to no avail and I've been Googling and Binging(?) this for two days now so if it's already been answered I apologize.

推荐答案

我终于找到了。您必须打开自动生成的Reference.cs代码。搜索实体类：

I finally found it. You have to open the auto generated Reference.cs code. Do a search for the entity class:

public partial class Entity : object, System.Runtime.Serialization.IExtensibleDataObject, System.ComponentModel.INotifyPropertyChanged {

转到其上方的行并添加已知类型的东西，以便实体可以取消

Go to the line above it and add the known type stuff so the entity can de-serialize it.

[System.Runtime.Serialization.KnownTypeAttribute(typeof(EntityReference))]
[System.Runtime.Serialization.KnownTypeAttribute(typeof(OptionSetValue))]
public partial class Entity : object, System.Runtime.Serialization.IExtensibleDataObject, System.ComponentModel.INotifyPropertyChanged {

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