Esempio: determinare se un utente dispone di un ruolo
Data di pubblicazione: novembre 2016
Si applica a: Dynamics CRM 2015
Questo codice di esempio è per Aggiornamento di Microsoft Dynamics CRM 2015 e Microsoft Dynamics CRM Online 2015.Scarica il pacchetto SDK di Microsoft Dynamics CRM. È disponibile nel percorso seguente nel pacchetto di download:
SampleCode\CS\BusinessDataModel\UsersAndRoles\DoesUserBelongToRole.cs
Requisiti
Per ulteriori informazioni sui requisiti per l'esecuzione del codice di esempio fornito nell'SDK, vedi Utilizzare il codice di esempio e dell'helper.
Dimostra
In questo esempio viene illustrato come determinare se un utente in Microsoft Dynamics 365 è stato associato a un ruolo specifico. Questo avviene tramite una query con il metodo IOrganizationService.RetrieveMultiple. Un frammento che visualizza le sezioni principali dell'esempio viene visualizzato all'inizio, seguito da Codice di esempio completo. Si noti che questo esempio può essere eseguito solo in un ambiente locale perché crea un utente. Tuttavia, la sezione dell'esempio che dimostra il recupero dei ruoli per un utente funzionerà per tutti gli ambienti.
Esempio
// 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.");
}
}
}
Codice di esempio completo
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
}
}
Vedere anche
Entità di privilegi e di ruoli
Esempio: rimuovere un ruolo per un utente
Entità team e entità utente
Codice dell'helper: classe di ServerConnection
Utenti sincronizzati in Microsoft Dynamics CRM Online e Office 365
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