The funny way to tell difference between null and undefined in JavaScript

You: What is name?
JavaScript: name? What's a name? I don't know what you're talking about. You haven't ever mentioned any name before. Are you seeing some other scripting language on the (client-)side?

name = null;
You: What is name?
JavaScript: I don't know.
In short; undefined is where no notion of the thing exists; it has no type, and it's never been referenced before in that scope; null is where the thing is known to exist, but it's not known what the value is.
One thing to remember is that null is not, conceptually, the same as false or "" or such, even if they equate after type casting, i.e.

name = false;
You: What is name?
JavaScript: Boolean false.

name = '';
You: What is name?
JavaScript: Empty string


http://stackoverflow.com/questions/801032/why-is-null-an-object-and-whats-the-difference-compared-to-undefined

The minimum steps to try out Microsoft CRM early binding

1. Generate CRM entity by CrmSDvcUtil.exe tool in folder of crm\sdk\bin
Reference:
http://msdn.microsoft.com/en-us/library/gg327844.aspx
CrmSvcUtil.exe /url:http://ServerName/OrganizationName/XRMServices/2011/Organization.svc /out:CSFileName.cs /username:usernamewithDomain /password:password /namespace:namespace /serviceContextName:contexName

2. Add following code in console app (Copy generate cs file into project and add it into)

            var _credentials = new ClientCredentials();
            _credentials.Windows.ClientCredential = (NetworkCredential)CredentialCache.DefaultCredentials;
            string CRM_SDK_URL = "http://ServerName/OrganizationName/XRMServices/2011/Organization.svc";
            OrganizationServiceProxy proxy = new OrganizationServiceProxy(new Uri(CRM_SDK_URL), null, _credentials, null);
            proxy.EnableProxyTypes();
            Account account = new Account { Name = "Sample Parent Account" };
            var _parentAccountId = proxy.Create(account);

How to get list of sub accounts in CRM plugin ?

public void Execute(IServiceProvider serviceProvider)
  {
            Microsoft.Xrm.Sdk.IPluginExecutionContext context = (Microsoft.Xrm.Sdk.IPluginExecutionContext) serviceProvider.GetService(typeof(Microsoft.Xrm.Sdk.IPluginExecutionContext));
            if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity)
            {
                Entity entity = (Entity)context.InputParameters["Target"];
                if (entity.LogicalName == "account") 
                {
                    // Obtain the organization service reference.
                    IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
                    IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);

                    //Get current account id (accountid)
                    var currentAccountid = entity["accountid"];
                    Microsoft.Xrm.Sdk.Query.QueryByAttribute querybyattribute = new Microsoft.Xrm.Sdk.Query.QueryByAttribute("account");
                    querybyattribute.ColumnSet = new Microsoft.Xrm.Sdk.Query.ColumnSet("accountnumber", "accountid", "emailaddress1");

                    querybyattribute.Attributes.AddRange("parentaccountid");
                    querybyattribute.Values.AddRange(currentAccountid);

                    EntityCollection retrieved = service.RetrieveMultiple(querybyattribute);
                    int count = 0;
                    foreach (var en in retrieved.Entities)
                    {
                        count += 1;
                        en.Attributes["accountnumber"] = count.ToString();
                        service.Update(en);
                    }
               }  
 
  }

How to remote debug Microsoft CRM plugin?

0. Tried Visual Studio 2010, failed. 32 bit VS not working with 64 bit remote debugger.
Error message:
Unable to attach to the process. The 32-bit version of the Visual Studio Remote Debugging Monitor (MSVSMON.EXE) cannot be used to debug 64-bit processes or 64-bit dumps. Please use the 64-bit version instead.
Certainly, you can not connect 2010 remote debugger with 2012
Unable to connect to the Microsoft Visual Studio Remote Debugging Monitor named 'CHATHAM\rwang@CRM'.  The Microsoft Visual Studio Remote Debugging Monitor (MSVSMON.EXE) does not appear to be running on the remote computer. This may be because a firewall is preventing communication to the remote computer. Please see Help for assistance on configuring remote debugging.

1. Remote tools for Remote Tools for Visual Studio 2012 Update 2
http://www.microsoft.com/en-my/download/details.aspx?id=38184
2. Run and Get Tcp/ip port number
3. Copy plugin pdb file into CRM box folder:
 C:\Program Files\Microsoft Dynamics CRM\Server\bin\assembly
4. In VS2012, Debug -> attach, put mahine_name@port_number in the qualifier box
5. Then attach to w3p process.

How to solve “Action failed for: Assembly must be registered in isolation” when try to register a plugin into CRM?

The user account must exist in the Deployment Administrators group of Deployment Manager.

The Whole error message:
Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: Action failed for assembly 'SamplePlugins, Version=0.0.0.0, Culture=neutral, PublicKeyToken=829f574d80e89132': Assembly must be registered in isolation.

Refenrence:
http://blogs.msdn.com/b/crminthefield/archive/2011/08/17/error-message-assembly-must-be-registered-in-isolation-when-registering-plugins-in-microsoft-dynamics-crm-2011.aspx