示例：确定用户是否具有角色
发布日期： 2017年1月
适用于： Dynamics 365 (online),Dynamics 365 (on-premises),Dynamics CRM 2016,Dynamics CRM Online
此示例代码适用于 Microsoft Dynamics 365（在线或本地）。下载 Microsoft Dynamics CRM SDK 包。 它可能位于下载包的以下位置：
SampleCode\CS\BusinessDataModel\UsersAndRoles\DoesUserBelongToRole.cs
要求
有关运行此 SDK 中提供的示例代码的要求的详细信息，请参阅使用示例和帮助程序代码。
演示
此示例演示如何确定 Microsoft Dynamics 365 中的用户是否与特定角色关联。 可以使用查询与 IOrganizationService.RetrieveMultiple 方法执行此操作。 首先显示包含示例关键部分的片段，后面再显示完整示例代码。 请注意，由于此示例创建用户，所以它只能在内部部署环境中运行。 不过，演示检索用户角色的示例部分适用于所有环境。
示例
// Connect to the Organization service.
// The using statement assures that the service proxy will be properly disposed.
using (_serviceProxy = new OrganizationServiceProxy(serverConfig.OrganizationUri, serverConfig.HomeRealmUri,serverConfig.Credentials, serverConfig.DeviceCredentials))
{
_serviceProxy.EnableProxyTypes();
CreateRequiredRecords();
// Retrieve a user.
SystemUser user = _serviceProxy.Retrieve(SystemUser.EntityLogicalName,
_userId, new ColumnSet(new String [] {"systemuserid", "firstname", "lastname"})).ToEntity<SystemUser>();
if (user != null)
{
Console.WriteLine("{1} {0} user account is retrieved.", user.LastName, user.FirstName);
// Find a role.
QueryExpression query = new QueryExpression
{
EntityName = Role.EntityLogicalName,
ColumnSet = new ColumnSet("roleid"),
Criteria = new FilterExpression
{
Conditions =
{
new ConditionExpression
{
AttributeName = "name",
Operator = ConditionOperator.Equal,
Values = {_givenRole}
}
}
}
};
// Get the role.
EntityCollection givenRoles = _serviceProxy.RetrieveMultiple(query);
if (givenRoles.Entities.Count > 0)
{
Role givenRole = givenRoles.Entities[0].ToEntity<Role>();
Console.WriteLine("Role {0} is retrieved.", _givenRole);
Console.WriteLine("Checking association between user and role.");
// Establish a SystemUser link for a query.
LinkEntity systemUserLink = new LinkEntity()
{
LinkFromEntityName = SystemUserRoles.EntityLogicalName,
LinkFromAttributeName = "systemuserid",
LinkToEntityName = SystemUser.EntityLogicalName,
LinkToAttributeName = "systemuserid",
LinkCriteria =
{
Conditions =
{
new ConditionExpression(
"systemuserid", ConditionOperator.Equal, user.Id)
}
}
};
// Build the query.
QueryExpression linkQuery = new QueryExpression()
{
EntityName = Role.EntityLogicalName,
ColumnSet = new ColumnSet("roleid"),
LinkEntities =
{
new LinkEntity()
{
LinkFromEntityName = Role.EntityLogicalName,
LinkFromAttributeName = "roleid",
LinkToEntityName = SystemUserRoles.EntityLogicalName,
LinkToAttributeName = "roleid",
LinkEntities = {systemUserLink}
}
},
Criteria =
{
Conditions =
{
new ConditionExpression("roleid", ConditionOperator.Equal, givenRole.Id)
}
}
};
// Retrieve matching roles.
EntityCollection matchEntities = _serviceProxy.RetrieveMultiple(linkQuery);
// if an entity is returned then the user is a member
// of the role
Boolean isUserInRole = (matchEntities.Entities.Count > 0);
if(isUserInRole)
Console.WriteLine("User do not belong to the role.");
else
Console.WriteLine("User belong to this role.");
}
}
}
完整示例代码
using System;
using System.ServiceModel;
using System.ServiceModel.Description;
// These namespaces are found in the Microsoft.Xrm.Sdk.dll assembly
// located in the SDK\bin folder of the SDK download.
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Crm.Sdk.Messages;
namespace Microsoft.Crm.Sdk.Samples
{
/// <summary>
/// Demonstrates how to check a role association with the system user.
/// </summary>
/// <remarks>
/// At run-time, you will be given the option to revert the role
/// association created by this program.</remarks>
public class DoesUserBelongToRole
{
#region Class Level Members
// Define the IDs needed for this sample.
private Guid _userId;
private OrganizationServiceProxy _serviceProxy;
private String _givenRole = "salesperson";
#endregion Class Level Members
#region How To Sample Code
/// <summary>
/// This method first connects to the Organization service. Afterwards,
/// creates/retrieve a system user,
/// retrieve a system user to check if it is associate with the salesperson role.
/// Note: Creating a user is only supported
/// in on-premises/active directory environment.
/// </summary>
/// <param name="serverConfig">Contains server connection information.</param>
/// <param name="promptforDelete">When True, the user will be prompted to delete all
/// created entities.</param>
public void Run(ServerConnection.Configuration serverConfig, bool promptforDelete)
{
try
{
// Connect to the Organization service.
// The using statement assures that the service proxy will be properly disposed.
using (_serviceProxy = new OrganizationServiceProxy(serverConfig.OrganizationUri, serverConfig.HomeRealmUri,serverConfig.Credentials, serverConfig.DeviceCredentials))
{
_serviceProxy.EnableProxyTypes();
CreateRequiredRecords();
// Retrieve a user.
SystemUser user = _serviceProxy.Retrieve(SystemUser.EntityLogicalName,
_userId, new ColumnSet(new String [] {"systemuserid", "firstname", "lastname"})).ToEntity<SystemUser>();
if (user != null)
{
Console.WriteLine("{1} {0} user account is retrieved.", user.LastName, user.FirstName);
// Find a role.
QueryExpression query = new QueryExpression
{
EntityName = Role.EntityLogicalName,
ColumnSet = new ColumnSet("roleid"),
Criteria = new FilterExpression
{
Conditions =
{
new ConditionExpression
{
AttributeName = "name",
Operator = ConditionOperator.Equal,
Values = {_givenRole}
}
}
}
};
// Get the role.
EntityCollection givenRoles = _serviceProxy.RetrieveMultiple(query);
if (givenRoles.Entities.Count > 0)
{
Role givenRole = givenRoles.Entities[0].ToEntity<Role>();
Console.WriteLine("Role {0} is retrieved.", _givenRole);
Console.WriteLine("Checking association between user and role.");
// Establish a SystemUser link for a query.
LinkEntity systemUserLink = new LinkEntity()
{
LinkFromEntityName = SystemUserRoles.EntityLogicalName,
LinkFromAttributeName = "systemuserid",
LinkToEntityName = SystemUser.EntityLogicalName,
LinkToAttributeName = "systemuserid",
LinkCriteria =
{
Conditions =
{
new ConditionExpression(
"systemuserid", ConditionOperator.Equal, user.Id)
}
}
};
// Build the query.
QueryExpression linkQuery = new QueryExpression()
{
EntityName = Role.EntityLogicalName,
ColumnSet = new ColumnSet("roleid"),
LinkEntities =
{
new LinkEntity()
{
LinkFromEntityName = Role.EntityLogicalName,
LinkFromAttributeName = "roleid",
LinkToEntityName = SystemUserRoles.EntityLogicalName,
LinkToAttributeName = "roleid",
LinkEntities = {systemUserLink}
}
},
Criteria =
{
Conditions =
{
new ConditionExpression("roleid", ConditionOperator.Equal, givenRole.Id)
}
}
};
// Retrieve matching roles.
EntityCollection matchEntities = _serviceProxy.RetrieveMultiple(linkQuery);
// if an entity is returned then the user is a member
// of the role
Boolean isUserInRole = (matchEntities.Entities.Count > 0);
if(isUserInRole)
Console.WriteLine("User do not belong to the role.");
else
Console.WriteLine("User belong to this role.");
}
}
}
}
// Catch any service fault exceptions that Microsoft Dynamics CRM throws.
catch (FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault>)
{
// You can handle an exception here or pass it back to the calling method.
throw;
}
}
/// <summary>
/// Creates any entity records that this sample requires.
/// </summary>
public void CreateRequiredRecords()
{
// For this sample, all required entities are created in the Run() method.
// Create/Retrieve a user.
_userId = SystemUserProvider.RetrieveAUserWithoutAnyRoleAssigned(_serviceProxy);
if (_userId != Guid.Empty)
Console.WriteLine("{0} user retrieved.", _userId);
}
#endregion How To Sample Code
#region Main method
/// <summary>
/// Standard Main() method used by most SDK samples.
/// </summary>
/// <param name="args"></param>
static public void Main(string[] args)
{
try
{
// Obtain the target organization's Web address and client logon
// credentials from the user.
ServerConnection serverConnect = new ServerConnection();
ServerConnection.Configuration config = serverConnect.GetServerConfiguration();
DoesUserBelongToRole app = new DoesUserBelongToRole();
app.Run(config, true);
}
catch (FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault> ex)
{
Console.WriteLine("The application terminated with an error.");
Console.WriteLine("Timestamp: {0}", ex.Detail.Timestamp);
Console.WriteLine("Code: {0}", ex.Detail.ErrorCode);
Console.WriteLine("Message: {0}", ex.Detail.Message);
Console.WriteLine("Trace: {0}", ex.Detail.TraceText);
Console.WriteLine("Inner Fault: {0}",
null == ex.Detail.InnerFault ? "No Inner Fault" : "Has Inner Fault");
}
catch (System.TimeoutException ex)
{
Console.WriteLine("The application terminated with an error.");
Console.WriteLine("Message: {0}", ex.Message);
Console.WriteLine("Stack Trace: {0}", ex.StackTrace);
Console.WriteLine("Inner Fault: {0}",
null == ex.InnerException.Message ? "No Inner Fault" : ex.InnerException.Message);
}
catch (System.Exception ex)
{
Console.WriteLine("The application terminated with an error.");
Console.WriteLine(ex.Message);
// Display the details of the inner exception.
if (ex.InnerException != null)
{
Console.WriteLine(ex.InnerException.Message);
FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault> fe = ex.InnerException
as FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault>;
if (fe != null)
{
Console.WriteLine("Timestamp: {0}", fe.Detail.Timestamp);
Console.WriteLine("Code: {0}", fe.Detail.ErrorCode);
Console.WriteLine("Message: {0}", fe.Detail.Message);
Console.WriteLine("Trace: {0}", fe.Detail.TraceText);
Console.WriteLine("Inner Fault: {0}",
null == fe.Detail.InnerFault ? "No Inner Fault" : "Has Inner Fault");
}
}
}
// Additional exceptions to catch: SecurityTokenValidationException, ExpiredSecurityTokenException,
// SecurityAccessDeniedException, MessageSecurityException, and SecurityNegotiationException.
finally
{
Console.WriteLine("Press <Enter> to exit.");
Console.ReadLine();
}
}
#endregion Main method
}
}
另请参阅
权限和角色实体
示例：删除用户角色
用户和团队实体
帮助程序代码：ServerConnection 类
Microsoft Dynamics 365（联机）和 Office 365 中的同步用户
Microsoft Dynamics 365
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