Intermittent exception when using CRM 2011 early bound APIs via a Threading.Task
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Wednesday, October 05, 2011 8:57 AM
I am experiencing intermittent SaveChangesException when creating CRM entities using the early binding APIs (generated context) via a Threading.Task.
Using the code below I am able to recreate the exception - note that it is intermittent and I can have several runs without experiencing it.
As you can see there is no shared state in my code, I am creating the CRM Connection, service and context per operation.
The exception thrown is:
Microsoft.Xrm.Sdk.SaveChangesException: An error occured while processing this request. ---> System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
Am I missing something here or are the early bound SDK classes unsafe to use in a multi-threaded environment?
class Program
{
static void Main(string[] args)
{
foreach (var index in Enumerable.Range(1, 400))
{
var capturedIndex = index;
Task.Factory.StartNew(() => CreateContact(capturedIndex));
}
Console.Read();
}
private static void CreateContact(int i)
{
var contact = new Contact {FirstName = "Test", LastName = string.Concat("Contact_", i)};
var context = new XrmServiceContext(new OrganizationService(new CrmConnection("Crm"))); // The generated context is taken from the SDK samples
context.AddObject(contact);
try
{
context.SaveChanges();
Console.WriteLine(string.Concat("Contact created - ", i));
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
}
