Sample: More LINQ query examples
Applies To: Dynamics CRM 2013
This sample code is for Microsoft Dynamics CRM 2013 and Microsoft Dynamics CRM Online. Download the Microsoft Dynamics CRM SDK package. The sample can be found in the following location in the download package:
SampleCode\CS\GeneralProgramming\Queries\UseLinqQuery.cs
SampleCode\VB\GeneralProgramming\Queries\UseLinqQuery.vb
Requirements
For more information about the requirements for running the sample code provided in this SDK, see Use the sample and helper code.
Demonstrates
This sample shows how to create LINQ queries. The following queries are demonstrated:
Retrieve records with Skip/Take record paging.
Use orderBy to order items retrieved.
Filter multiple entities using LINQ.
Build a complex query with LINQ.
Example
using System;
using System.Collections.Generic;
using System.Linq;
using System.ServiceModel;
// 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.Client;
namespace Microsoft.Crm.Sdk.Samples
{
/// <summary>
/// Demonstrates how to make LINQ queries with the OrganizationServiceContext
/// object and strongly-typed entities.</summary>
/// <remarks>
/// At run-time, you will be given the option to delete all the
/// database records created by this program.</remarks>
public class UseLinqQuery
{
#region Class Level Members
private List<Guid> _accountIds = new List<Guid>();
private List<Guid> _contactIds = new List<Guid>();
private List<Guid> _leadIds = new List<Guid>();
private List<Guid> _taskIds = new List<Guid>();
private OrganizationServiceProxy _serviceProxy;
private IOrganizationService _service;
#endregion Class Level Members
#region How To Sample Code
/// <summary>
/// This method first connects to the Organization service and service context.
/// Afterwards, several LINQ query techniques are demonstrated.
/// </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 = ServerConnection.GetOrganizationProxy(serverConfig))
{
// This statement is required to enable early-bound type support.
_serviceProxy.EnableProxyTypes();
_service = (IOrganizationService)_serviceProxy;
CreateRequiredRecords();
ServiceContext svcContext =
new ServiceContext(_service);
// Retrieve records with Skip/Take record paging. Setting a page size
// can help you manage your Skip and Take calls, since Skip must be
// passed a multiple of Take's parameter value.
int pageSize = 5;
var accountsByPage = (from a in svcContext.AccountSet
select new Account
{
Name = a.Name,
});
System.Console.WriteLine("Skip 10 accounts, then Take 5 accounts");
System.Console.WriteLine("======================================");
foreach (var a in accountsByPage.Skip(2 * pageSize).Take(pageSize))
{
System.Console.WriteLine(a.Name);
}
System.Console.WriteLine();
System.Console.WriteLine("<End of Listing>");
System.Console.WriteLine();
//OUTPUT:
//Skip 10 accounts, then Take 5 accounts
//======================================
//Fourth Coffee 6
//Fourth Coffee 7
//Fourth Coffee 8
//Fourth Coffee 9
//Fourth Coffee 10
//<End of Listing>
// Use orderBy to order items retrieved.
var orderedAccounts = from a in svcContext.AccountSet
orderby a.Name
select new Account
{
Name = a.Name,
};
System.Console.WriteLine("Display accounts ordered by name");
System.Console.WriteLine("================================");
foreach (var a in orderedAccounts)
{
System.Console.WriteLine(a.Name);
}
System.Console.WriteLine();
System.Console.WriteLine("<End of Listing>");
System.Console.WriteLine();
//OUTPUT:
//Display accounts ordered by name
//================================
//A. Datum Corporation
//Adventure Works
//Coho Vineyard
//Fabrikam
//Fourth Coffee 1
//Fourth Coffee 10
//Fourth Coffee 2
//Fourth Coffee 3
//Fourth Coffee 4
//Fourth Coffee 5
//Fourth Coffee 6
//Fourth Coffee 7
//Fourth Coffee 8
//Fourth Coffee 9
//Humongous Insurance
//<End of Listing>
// Filter multiple entities using LINQ.
var query = from c in svcContext.ContactSet
join a in svcContext.AccountSet
on c.ContactId equals a.PrimaryContactId.Id
where c.LastName == "Wilcox" || c.LastName == "Andrews"
where a.Address1_Telephone1.Contains("(206)")
|| a.Address1_Telephone1.Contains("(425)")
select new
{
Contact = new Contact
{
FirstName = c.FirstName,
LastName = c.LastName,
},
Account = new Account
{
Address1_Telephone1 = a.Address1_Telephone1
}
};
Console.WriteLine("Join account and contact");
Console.WriteLine("List all records matching specified parameters");
Console.WriteLine("Contact name: Wilcox or Andrews");
Console.WriteLine("Account area code: 206 or 425");
Console.WriteLine("==============================================");
foreach (var record in query)
{
Console.WriteLine("Contact Name: {0} {1}",
record.Contact.FirstName, record.Contact.LastName);
Console.WriteLine("Account Phone: {0}",
record.Account.Address1_Telephone1);
}
Console.WriteLine("<End of Listing>");
Console.WriteLine();
//OUTPUT:
//Join account and contact
//List all records matching specified parameters
//Contact name: Wilcox or Andrews
//Account area code: 206 or 425
//==============================================
//Contact Name: Ben Andrews
//Account Phone: (206)555-5555
//Contact Name: Ben Andrews
//Account Phone: (425)555-5555
//Contact Name: Colin Wilcox
//Account Phone: (425)555-5555
//<End of Listing>
// Build a complex query with LINQ. This query includes multiple
// JOINs and a complex WHERE statement.
var complexQuery = from c in svcContext.ContactSet
join a in svcContext.AccountSet
on c.ContactId equals a.PrimaryContactId.Id
join l in svcContext.CreateQuery<Lead>()
on a.OriginatingLeadId.Id equals l.LeadId
where c.LastName == "Wilcox" || c.LastName == "Andrews"
where a.Address1_Telephone1.Contains("(206)")
|| a.Address1_Telephone1.Contains("(425)")
select new
{
Contact = new Contact
{
FirstName = c.FirstName,
LastName = c.LastName,
},
Account = new Account
{
Address1_Telephone1 = a.Address1_Telephone1
},
Lead = new Lead
{
LeadId = l.LeadId
}
};
Console.WriteLine("Join account, contact and lead");
Console.WriteLine("List all records matching specified parameters");
Console.WriteLine("Contact name: Wilcox or Andrews");
Console.WriteLine("Account area code: 206 or 425");
Console.WriteLine("==============================================");
foreach (var record in complexQuery)
{
Console.WriteLine("Lead ID: {0}",
record.Lead.LeadId);
Console.WriteLine("Contact Name: {0} {1}",
record.Contact.FirstName, record.Contact.LastName);
Console.WriteLine("Account Phone: {0}",
record.Account.Address1_Telephone1);
}
Console.WriteLine("<End of Listing>");
Console.WriteLine();
//OUTPUT:
//Join account, contact and lead
//List all records matching specified parameters
//Contact name: Wilcox or Andrews
//Account area code: 206 or 425
//==============================================
//Lead ID: 78d5df14-64a3-e011-aea3-00155dba3818
//Contact Name: Colin Wilcox
//Account Phone: (425)555-5555
//<End of Listing>
//Retrieve a related Task for a Contact
//Shows requirement that LoadProperty must be used to access the related record.
Contact benAndrews = svcContext.ContactSet.Where(c => c.FullName == "Ben Andrews").FirstOrDefault();
if (benAndrews != null)
{
//benAndrews.Contact_Tasks is null until LoadProperty is used.
svcContext.LoadProperty(benAndrews, "Contact_Tasks");
Task benAndrewsFirstTask = benAndrews.Contact_Tasks.FirstOrDefault();
if (benAndrewsFirstTask != null)
{
Console.WriteLine("Ben Andrews first task with Subject: '{0}' retrieved.", benAndrewsFirstTask.Subject);
}
}
DeleteRequiredRecords(promptForDelete);
}
}
// 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()
{
// Create 3 contacts.
Contact contact = new Contact()
{
FirstName = "Ben",
LastName = "Andrews",
EMailAddress1 = "sample@example.com",
Address1_City = "Redmond",
Address1_StateOrProvince = "WA"
};
Guid benAndrewsContactId = _service.Create(contact);
_contactIds.Add(benAndrewsContactId);
//Create a task associated with Ben Andrews
Task task = new Task() {
Subject = "Sample Task",
RegardingObjectId = new EntityReference() {
LogicalName = Contact.EntityLogicalName,
Id = benAndrewsContactId,
Name = contact.FullName
}
};
_taskIds.Add(_service.Create(task));
contact = new Contact()
{
FirstName = "Colin",
LastName = "Wilcox",
EMailAddress1 = "sample@example.com",
Address1_City = "Bellevue",
Address1_StateOrProvince = "WA"
};
_contactIds.Add(_service.Create(contact));
contact = new Contact()
{
FirstName = "Ben",
LastName = "Smith",
EMailAddress1 = "sample@example.com",
Address1_City = "Bellevue",
Address1_StateOrProvince = "WA"
};
_contactIds.Add(_service.Create(contact));
// Create 3 leads.
Lead lead = new Lead()
{
FirstName = "Dan",
LastName = "Wilson",
EMailAddress1 = "sample@example.com",
Address1_City = "Redmond",
Address1_StateOrProvince = "WA"
};
_leadIds.Add(_service.Create(lead));
lead = new Lead()
{
FirstName = "Jim",
LastName = "Wilson",
EMailAddress1 = "sample@example.com",
Address1_City = "Bellevue",
Address1_StateOrProvince = "WA"
};
_leadIds.Add(_service.Create(lead));
lead = new Lead()
{
FirstName = "Denise",
LastName = "Smith",
EMailAddress1 = "sample@example.com",
Address1_City = "Bellevue",
Address1_StateOrProvince = "WA"
};
_leadIds.Add(_service.Create(lead));
// Create 5 customized Accounts for the LINQ samples.
Account account = new Account
{
Name = "A. Datum Corporation",
Address1_StateOrProvince = "Colorado",
Address1_Telephone1 = "(206)555-5555",
PrimaryContactId =
new EntityReference(Contact.EntityLogicalName, _contactIds[0])
};
_accountIds.Add(_service.Create(account));
account = new Account
{
Name = "Adventure Works",
Address1_StateOrProvince = "Illinois",
Address1_County = "Lake County",
Address1_Telephone1 = "(206)555-5555",
OriginatingLeadId =
new EntityReference(Lead.EntityLogicalName, _leadIds[0])
};
_accountIds.Add(_service.Create(account));
account = new Account
{
Name = "Coho Vineyard",
Address1_StateOrProvince = "Washington",
Address1_County = "King County",
Address1_Telephone1 = "(425)555-5555",
PrimaryContactId =
new EntityReference(Contact.EntityLogicalName, _contactIds[1]),
OriginatingLeadId =
new EntityReference(Lead.EntityLogicalName, _leadIds[0])
};
_accountIds.Add(_service.Create(account));
account = new Account
{
Name = "Fabrikam",
Address1_StateOrProvince = "Washington",
Address1_Telephone1 = "(425)555-5555",
PrimaryContactId =
new EntityReference(Contact.EntityLogicalName, _contactIds[0])
};
_accountIds.Add(_service.Create(account));
account = new Account
{
Name = "Humongous Insurance",
Address1_StateOrProvince = "Missouri",
Address1_County = "Saint Louis County",
Address1_Telephone1 = "(314)555-5555",
PrimaryContactId =
new EntityReference(Contact.EntityLogicalName, _contactIds[1])
};
_accountIds.Add(_service.Create(account));
// Create 10 basic Account records.
for (int i = 1; i <= 10; i++)
{
account = new Account
{
Name = "Fourth Coffee " + i,
Address1_StateOrProvince = "California"
};
_accountIds.Add(_service.Create(account));
}
}
/// <summary>
/// Deletes any entity records that were created for this sample.
/// <param name="prompt">Indicates whether to prompt the user
/// to delete the records created in this sample.</param>
/// </summary>
public void DeleteRequiredRecords(bool prompt)
{
bool toBeDeleted = true;
if (prompt)
{
// Ask the user if the created entities should be deleted.
Console.Write("\nDo you want these entity records deleted? (y/n) [y]: ");
String answer = Console.ReadLine();
if (answer.StartsWith("y") ||
answer.StartsWith("Y") ||
answer == String.Empty)
{
toBeDeleted = true;
}
else
{
toBeDeleted = false;
}
}
if (toBeDeleted)
{
// Delete all records created in this sample.
foreach (Guid taskId in _taskIds)
{
_service.Delete(Task.EntityLogicalName, taskId);
}
foreach (Guid accountId in _accountIds)
{
_service.Delete(Account.EntityLogicalName, accountId);
}
foreach (Guid contactId in _contactIds)
{
_service.Delete(Contact.EntityLogicalName, contactId);
}
foreach (Guid leadId in _leadIds)
{
_service.Delete(Lead.EntityLogicalName, leadId);
}
Console.WriteLine("Entity record(s) have been deleted.");
}
}
#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();
UseLinqQuery app = new UseLinqQuery();
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("Plugin 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("Plugin 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
}
}
Imports System.ServiceModel
' These namespaces are found in the Microsoft.Xrm.Sdk.dll assembly
' located in the SDK\bin folder of the SDK download.
Imports Microsoft.Xrm.Sdk
Imports Microsoft.Xrm.Sdk.Client
Namespace Microsoft.Crm.Sdk.Samples
''' <summary>
''' Demonstrates how to make LINQ queries with the OrganizationServiceContext
''' object and strongly-typed entities.</summary>
''' <remarks>
''' At run-time, you will be given the option to delete all the
''' database records created by this program.</remarks>
Public Class UseLinqQuery
#Region "Class Level Members"
Private _accountIds As New List(Of Guid)()
Private _contactIds As New List(Of Guid)()
Private _leadIds As New List(Of Guid)()
Private _taskIds As New List(Of Guid)()
Private _serviceProxy As OrganizationServiceProxy
Private _service As IOrganizationService
#End Region ' Class Level Members
#Region "How To Sample Code"
''' <summary>
''' This method first connects to the Organization service and service context.
''' Afterwards, several LINQ query techniques are demonstrated.
''' </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 Sub Run(ByVal serverConfig As ServerConnection.Configuration,
ByVal promptForDelete As Boolean)
Try
' Connect to the Organization service.
' The using statement assures that the service proxy will be properly disposed.
_serviceProxy = ServerConnection.GetOrganizationProxy(serverConfig)
Using _serviceProxy
' This statement is required to enable early-bound type support.
_serviceProxy.EnableProxyTypes()
_service = CType(_serviceProxy, IOrganizationService)
CreateRequiredRecords()
Dim svcContext As New ServiceContext(_service)
' Retrieve records with Skip/Take record paging. Setting a page size
' can help you manage your Skip and Take calls, since Skip must be
' passed a multiple of Take's parameter value.
Dim pageSize As Integer = 5
Dim accountsByPage = ( _
From a In svcContext.CreateQuery(Of Account)() _
Select New Account With {.Name = a.Name})
Console.WriteLine("Skip 10 accounts, then Take 5 accounts")
Console.WriteLine("======================================")
For Each a In accountsByPage.Skip(2 * pageSize).Take(pageSize)
Console.WriteLine(a.Name)
Next a
Console.WriteLine()
Console.WriteLine("<End of Listing>")
Console.WriteLine()
' Use orderBy to order items retrieved.
Dim orderedAccounts = From a In svcContext.CreateQuery(Of Account)() _
Order By a.Name _
Select New Account With {.Name = a.Name}
Console.WriteLine("Display accounts ordered by name")
Console.WriteLine("================================")
For Each a In orderedAccounts
Console.WriteLine(a.Name)
Next a
Console.WriteLine()
Console.WriteLine("<End of Listing>")
Console.WriteLine()
' Filter multiple entities using LINQ.
Dim query = From c In svcContext.CreateQuery(Of Contact)() _
Join a In svcContext.CreateQuery(Of Account)() _
On c.ContactId Equals a.PrimaryContactId.Id _
Where c.LastName.Equals("Wilcox") _
OrElse c.LastName.Equals("Andrews") _
Where a.Address1_Telephone1.Contains("(206)") _
OrElse a.Address1_Telephone1.Contains("(425)") _
Select New With
{
Key .Contact =
New Contact With
{
.FirstName = c.FirstName,
.LastName = c.LastName
},
Key .Account =
New Account With
{
.Address1_Telephone1 =
a.Address1_Telephone1
}
}
Console.WriteLine("Join account and contact")
Console.WriteLine("List all records matching specified parameters")
Console.WriteLine("Contact name: Wilcox or Andrews")
Console.WriteLine("Account area code: 206 or 425")
Console.WriteLine("==============================================")
For Each record In query
Console.WriteLine("Contact Name: {0} {1}",
record.Contact.FirstName,
record.Contact.LastName)
Console.WriteLine("Account Phone: {0}",
record.Account.Address1_Telephone1)
Next record
Console.WriteLine("<End of Listing>")
Console.WriteLine()
' Build a complex query with LINQ.
'This query includes multiple JOINs.
'Note: Where statements are not working with the below multiple join query.
' Refer equivalent C# snippet for full complex query.
'TODO: Fix issue to include where statements as shown in C# sample.
Dim complexQuery = From c In svcContext.CreateQuery(Of Contact)() _
Join a In svcContext.CreateQuery(Of Account)() _
On c.ContactId Equals a.PrimaryContactId.Id _
Join l In svcContext.CreateQuery(Of Lead)() _
On a.OriginatingLeadId.Id Equals l.LeadId _
Select New With
{
Key .Contact =
New Contact With
{
.FirstName = c.FirstName,
.LastName = c.LastName
},
Key .Account =
New Account With
{
.Address1_Telephone1 =
a.Address1_Telephone1
},
Key .Lead =
New Lead With
{
.LeadId = l.LeadId
}
}
Console.WriteLine("Join account, contact and lead")
Console.WriteLine("List all records matching specified parameters")
Console.WriteLine("==============================================")
For Each record In complexQuery
Console.WriteLine("Lead ID: {0}", record.Lead.LeadId)
Console.WriteLine("Contact Name: {0} {1}",
record.Contact.FirstName,
record.Contact.LastName)
Console.WriteLine("Account Phone: {0}",
record.Account.Address1_Telephone1)
Next record
Console.WriteLine("<End of Listing>")
Console.WriteLine()
'Retrieve a related Task for a Contact
'Shows requirement that LoadProperty must be used to access the related record.
Dim benAndrews As Contact = (From c In svcContext.ContactSet
Where c.FullName.Equals("Ben Andrews")).FirstOrDefault()
If benAndrews IsNot Nothing Then
'benAndrews.Contact_Tasks is null until LoadProperty is used.
svcContext.LoadProperty(benAndrews, "Contact_Tasks")
Dim benAndrewsFirstTask As Task = benAndrews.Contact_Tasks.FirstOrDefault()
If benAndrewsFirstTask IsNot Nothing Then
Console.WriteLine("Ben Andrews first task with Subject: '{0}' retrieved.",
benAndrewsFirstTask.Subject)
End If
End If
DeleteRequiredRecords(promptForDelete)
End Using
' Catch any service fault exceptions that Microsoft Dynamics CRM throws.
Catch fe As FaultException(Of Microsoft.Xrm.Sdk.OrganizationServiceFault)
' You can handle an exception here or pass it back to the calling method.
Throw
End Try
End Sub
''' <summary>
''' Creates any entity records that this sample requires.
''' </summary>
Public Sub CreateRequiredRecords()
' Create 3 contacts.
Dim contact As New Contact() With
{
.FirstName = "Ben",
.LastName = "Andrews",
.EMailAddress1 = "sample@example.com",
.Address1_City = "Redmond",
.Address1_StateOrProvince = "WA"
}
Dim benAndrewsContactId As Guid = _service.Create(contact)
_contactIds.Add(benAndrewsContactId)
'Create a task associated with Ben Andrews
Dim task_Renamed As New Task() With
{
.Subject = "Sample Task",
.RegardingObjectId = New EntityReference() With
{
.LogicalName = contact.EntityLogicalName,
.Id = benAndrewsContactId,
.Name = contact.FullName
}
}
_taskIds.Add(_service.Create(task_Renamed))
contact = New Contact() With
{
.FirstName = "Colin",
.LastName = "Wilcox",
.EMailAddress1 = "sample@example.com",
.Address1_City = "Bellevue",
.Address1_StateOrProvince = "WA"
}
_contactIds.Add(_service.Create(contact))
contact = New Contact() With
{
.FirstName = "Ben",
.LastName = "Smith",
.EMailAddress1 = "sample@example.com",
.Address1_City = "Bellevue",
.Address1_StateOrProvince = "WA"
}
_contactIds.Add(_service.Create(contact))
' Create 3 leads.
Dim lead As New Lead() With
{
.FirstName = "Dan",
.LastName = "Wilson",
.EMailAddress1 = "sample@example.com",
.Address1_City = "Redmond",
.Address1_StateOrProvince = "WA"
}
_leadIds.Add(_service.Create(lead))
lead = New Lead() With
{
.FirstName = "Jim",
.LastName = "Wilson",
.EMailAddress1 = "sample@example.com",
.Address1_City = "Bellevue",
.Address1_StateOrProvince = "WA"
}
_leadIds.Add(_service.Create(lead))
lead = New Lead() With
{
.FirstName = "Denise",
.LastName = "Smith",
.EMailAddress1 = "sample@example.com",
.Address1_City = "Bellevue",
.Address1_StateOrProvince = "WA"
}
_leadIds.Add(_service.Create(lead))
' Create 5 customized Accounts for the LINQ samples.
Dim account As Account =
New Account With
{
.Name = "A. Datum Corporation",
.Address1_StateOrProvince = "Colorado",
.Address1_Telephone1 = "(206)555-5555",
.PrimaryContactId =
New EntityReference(contact.EntityLogicalName,
_contactIds(0))
}
_accountIds.Add(_service.Create(account))
account =
New Account With
{
.Name = "Adventure Works",
.Address1_StateOrProvince = "Illinois",
.Address1_County = "Lake County",
.Address1_Telephone1 = "(206)555-5555",
.OriginatingLeadId = New EntityReference(lead.EntityLogicalName,
_leadIds(0))
}
_accountIds.Add(_service.Create(account))
account =
New Account With
{
.Name = "Coho Vineyard",
.Address1_StateOrProvince = "Washington",
.Address1_County = "King County",
.Address1_Telephone1 = "(425)555-5555",
.PrimaryContactId = New EntityReference(contact.EntityLogicalName,
_contactIds(1)),
.OriginatingLeadId = New EntityReference(lead.EntityLogicalName,
_leadIds(0))
}
_accountIds.Add(_service.Create(account))
account =
New Account With
{
.Name = "Fabrikam",
.Address1_StateOrProvince = "Washington",
.Address1_Telephone1 = "(425)555-5555",
.PrimaryContactId = New EntityReference(contact.EntityLogicalName,
_contactIds(0))
}
_accountIds.Add(_service.Create(account))
account =
New Account With
{
.Name = "Humongous Insurance",
.Address1_StateOrProvince = "Missouri",
.Address1_County = "Saint Louis County",
.Address1_Telephone1 = "(314)555-5555",
.PrimaryContactId = New EntityReference(contact.EntityLogicalName,
_contactIds(1))
}
_accountIds.Add(_service.Create(account))
' Create 10 basic Account records.
For i As Integer = 1 To 10
account =
New Account With
{
.Name = "Fourth Coffee " & i,
.Address1_StateOrProvince = "California"
}
_accountIds.Add(_service.Create(account))
Next i
End Sub
''' <summary>
''' Deletes any entity records that were created for this sample.
''' <param name="prompt">Indicates whether to prompt the user
''' to delete the records created in this sample.</param>
''' </summary>
Public Sub DeleteRequiredRecords(ByVal prompt As Boolean)
Dim toBeDeleted As Boolean = True
If prompt Then
' Ask the user if the created entities should be deleted.
Console.Write(vbLf & "Do you want these entity records deleted? (y/n) [y]: ")
Dim answer As String = Console.ReadLine()
If answer.StartsWith("y") OrElse answer.StartsWith("Y") _
OrElse answer = String.Empty Then
toBeDeleted = True
Else
toBeDeleted = False
End If
End If
If toBeDeleted Then
' Delete all records created in this sample.
For Each taskId As Guid In _taskIds
_service.Delete(Task.EntityLogicalName, taskId)
Next taskId
For Each accountId As Guid In _accountIds
_service.Delete(Account.EntityLogicalName, accountId)
Next accountId
For Each contactId As Guid In _contactIds
_service.Delete(Contact.EntityLogicalName, contactId)
Next contactId
For Each leadId As Guid In _leadIds
_service.Delete(Lead.EntityLogicalName, leadId)
Next leadId
Console.WriteLine("Entity record(s) have been deleted.")
End If
End Sub
#End Region ' How To Sample Code
#Region "Main method"
''' <summary>
''' Standard Main() method used by most SDK samples.
''' </summary>
''' <param name="args"></param>
Public Shared Sub Main(ByVal args() As String)
Try
' Obtain the target organization's Web address and client logon
' credentials from the user.
Dim serverConnect As New ServerConnection()
Dim config As ServerConnection.Configuration =
serverConnect.GetServerConfiguration()
Dim app As New UseLinqQuery()
app.Run(config, True)
Catch ex As FaultException(Of Microsoft.Xrm.Sdk.OrganizationServiceFault)
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("Plugin Trace: {0}", ex.Detail.TraceText)
Console.WriteLine("Inner Fault: {0}", If(Nothing Is ex.Detail.InnerFault, "No Inner Fault", "Has Inner Fault"))
Catch ex As TimeoutException
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}",
If(Nothing Is ex.InnerException.Message, "No Inner Fault", ex.InnerException.Message))
Catch ex As Exception
Console.WriteLine("The application terminated with an error.")
Console.WriteLine(ex.Message)
' Display the details of the inner exception.
If ex.InnerException IsNot Nothing Then
Console.WriteLine(ex.InnerException.Message)
Dim fe As FaultException(Of Microsoft.Xrm.Sdk.OrganizationServiceFault) =
TryCast(ex.InnerException,
FaultException(Of Microsoft.Xrm.Sdk.OrganizationServiceFault))
If fe IsNot Nothing Then
Console.WriteLine("Timestamp: {0}", fe.Detail.Timestamp)
Console.WriteLine("Code: {0}", fe.Detail.ErrorCode)
Console.WriteLine("Message: {0}", fe.Detail.Message)
Console.WriteLine("Plugin Trace: {0}", fe.Detail.TraceText)
Console.WriteLine("Inner Fault: {0}",
If(Nothing Is fe.Detail.InnerFault, "No Inner Fault", "Has Inner Fault"))
End If
End If
' Additional exceptions to catch: SecurityTokenValidationException, ExpiredSecurityTokenException,
' SecurityAccessDeniedException, MessageSecurityException, and SecurityNegotiationException.
Finally
Console.WriteLine("Press <Enter> to exit.")
Console.ReadLine()
End Try
End Sub
#End Region ' Main method
End Class
End Namespace
See Also
OrganizationServiceContext
Build queries with LINQ (.NET language-integrated query)
Sample: Use LINQ with late binding