Mscrm 2011 Plugin basic code snippsets:

Code to extract service objects:

IPluginExecutionContext context =

                (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext));

 

            // Get a reference to the organization service.

            IOrganizationServiceFactory factory =

                (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));

            IOrganizationService service = factory.CreateOrganizationService(context.UserId);

 

            // Get a reference to the tracing service.

            ITracingService tracingService = (ITracingService)serviceProvider.GetService(typeof(ITracingService));

 

Getting input parameters:

if (context.InputParameters.Contains("Target") &&

    context.InputParameters["Target"] is Entity)

{

    // Obtain the target entity from the input parmameters.

    Entity entity = (Entity)context.InputParameters["Target"];

Shared variable:

context.SharedVariables.Add("PrimaryContact", (Object)contact.ToString());

if (context.SharedVariables.Contains("PrimaryContact"))

            {

                Guid contact =

                    new Guid((string)context.SharedVariables["PrimaryContact"]);

 

                // Do something with the contact.

            }

Image reading:

if (context.PreEntityImages.Contains("PreImage") &&
12	context.PreEntityImages["PreImage"] is Entity)

 

13	{
14	preMessageImage = (Entity)context.PreEntityImages["PreImage"];

 

15

}

 

 

Query expression class:

//  Create query using querybyattribute

    QueryByAttribute querybyexpression = new QueryByAttribute("account");

    querybyexpression.ColumnSet = new ColumnSet("name", "address1_city", "emailaddress1");

//  Attribute to query

    querybyexpression.Attributes.AddRange("address1_city");

//  Value of queried attribute to return

    querybyexpression.Values.AddRange("Detroit");

   

//  Query passed to the service proxy

    EntityCollection retrieved = _serviceProxy.RetrieveMultiple(querybyexpression);

  

//  Iterate through returned collection

    foreach (var c in retrieved.Entities)

    {

       System.Console.WriteLine("Name: " + c.Attributes["name"]);

       System.Console.WriteLine("Address: " + c.Attributes["address1_city"]);

       System.Console.WriteLine("E-mail: " + c.Attributes["emailaddress1"]);

    } 

-___________________________X___________________________

//  Query using ConditionExpression and FilterExpression

ConditionExpression condition1 = new ConditionExpression();

condition1.AttributeName = "lastname";

condition1.Operator = ConditionOperator.Equal;

condition1.Values.Add("Brown");           

 

FilterExpression filter1 = new FilterExpression();

filter1.Conditions.Add(condition1);

 

QueryExpression query = new QueryExpression("contact");

query.ColumnSet.AddColumns("firstname", "lastname");

query.Criteria.AddFilter(filter1);

 

EntityCollection result1 = _serviceProxy.RetrieveMultiple(query);

 

_________________x________________

QueryExpression contactquery = new QueryExpression

                        {

                            EntityName="contact",

                            ColumnSet = new ColumnSet("firstname", "lastname", "contactid")

                        };

 



LINQ code:
http://msdn.microsoft.com/en-us/library/gg334593.aspx