This item is no longer available. It may have been deleted by another user

There are many articles about this SharePoint error message: "This item is no longer available. It may have been deleted by another user"

Mike Smith's Tech Training Notes and
http://girishm.blog.com/2010/07/11/this-item-is-no-longer-available-it-may-have-been-deleted-by-another-user-click-ok-to-refresh-the-page/

These solutions didn't work for me!
IN MY CASE I SIMPLY DELETE INTERNET TEMPORARY FILES & COOKIES!!!

SCSM Creating Manual Activity for Incident in C#

Some time ago I had to develope application that could connect two systems: Microsoft Dynamics CRM & SCSM (Microsoft System Center Service Manager). The main purpose of this application is to synchronize data between two applications.

In this article i will show you only some little part (but maybe one of the  toughest for me...) of my application code.
I will continue to post some other usefull parts from this project. 

The code consists of 3 main steps:

1. Create relationship between incident & manual activity
2. Create manual activity
3. Assign created activity to incident

There is good post about creating incident in SCSM which really helped me out: http://blogs.technet.com/b/servicemanager/archive/2009/08/09/the-system-center-platform-in-service-manager-part-3-the-data-access-service-try-it.aspx

//Create relationship between incident & manual acticvity
ManagementPackRelationship workItemContainsActivityRelationship =
mg.EntityTypes.GetRelationshipClass(new Guid("2DA498BE-0485-B2B2-D520-6EBD1698E61B"));
                                             
CreatableEnterpriseManagementRelationshipObject AssignedToIncident = 
new CreatableEnterpriseManagementRelationshipObject(mg, workItemContainsActivityRelationship);

//Create Manual Activity
CreatableEnterpriseManagementObject activityItemObject = 
new CreatableEnterpriseManagementObject(mg, classManualActivity);
Guid newActivityGuid = Guid.NewGuid();
                                             
activityItemObject[classManualActivity, "Id"].Value = newActivityGuid.ToString();                                              
activityItemObject[classManualActivity, "Title"].Value = "<Title>";
activityItemObject[classManualActivity, "Description"].Value = "<Description>";
                                             
EnterpriseManagementObjectGenericCriteria genericCr = 
new EnterpriseManagementObjectGenericCriteria("Id == '" + <SCSM Incident Id>.ToString() + "'");
IObjectReader<EnterpriseManagementObject> reader = mg.EntityObjects.GetObjectReader<EnterpriseManagementObject>(genericCr, ObjectQueryOptions.Default);

 if (reader != null && reader.Count > 0) {

foreach (EnterpriseManagementObject obj in reader) {

AssignedToIncident.SetSource(obj);

AssignedToIncident.SetTarget(activityItemObject);

IncrementalDiscoveryData dd = new IncrementalDiscoveryData();

dd.Add(activityItemObject);

dd.Add(AssignedToIncident);

dd.Overwrite(mg);

//Assign Manual Activity to Incident

AssignedToIncident.Commit();

         }

}

How to get all SharePoint Users with web services in c#

SPservice.UserGroup usergroup = new SPservice.UserGroup();
usergroup.Credentials = System.Net.CredentialCache.DefaultCredentials;

XmlNode allusers = usergroup.GetAllUserCollectionFromWeb();

foreach (XmlNode child in allusers.ChildNodes) {
                            foreach (XmlNode item in child) {
                                  foreach (XmlAttribute atr in item.Attributes) {
                                              if (atr.Name.ToString() == "LoginName") {
                                              MessageBox.Show(atr.OuterXml);
                                              }
                              }
                }
}

SPservice - name of web reference in your visual studio project with URL:
http://<your server name>/_vti_bin/usergroup.asmx

CRM 4 how to retrieve custom attribute value in C#

DynamicEntity someEntity;

TargetRetrieveDynamic retrieveTarget = new TargetRetrieveDynamic();

retrieveTarget.EntityId = <id of entity>;

retrieveTarget.EntityName = EntityName.<entity name>.ToString();

RetrieveRequest retrieveRequest = new RetrieveRequest();

retrieveRequest.ColumnSet = new ColumnSet(new string[] { "your_custom_attribute" });

retrieveRequest.ReturnDynamicEntities = true;

retrieveRequest.Target = retrieveTarget;

RetrieveResponse retrieveResponse = (RetrieveResponse)service.Execute(retrieveRequest);

someEntity = retrieveResponse.BusinessEntity as DynamicEntity;

String result = (String)someEntity["your_custom_attribute"];

String value = result.Value.ToString();

CRM 4 Workflow error message details

In CRM 4 to get more info from workflow error than "An error has occurred" run this command against CRM database:


select Message from AsyncOperationBase
order by CreatedOn desc