ConditionOperator To FetchXml Operator

Dynamics CRM SDK contains the ConditionOperator enumerator that can be used when building a QueryExpression, but the SDK doesn't provide a way to convert a ConditionOperator to its FetchXml equivalent.

I created a static method that accepts a ConditionOperator enumerator and returns a string containing the equivalent FetchXml operator:

public static string ConditionOperatorToFetchXmlOperator(ConditionOperator conditionOperator)

string fetchXmlOperator = ConditionOperatorToFetchXmlOperator(ConditionOperator.EqualUserId); 
// fetchXmlOperator will be "eq-userid"

The library can be downloaded from Technet Gallery:
https://gallery.technet.microsoft.com/scriptcenter/ConditionOperator-To-065c445e

Note: the library contains the ConditionOperator for CRM 2011, CRM 2013 and CRM 2015.

Retrieve the members of a specific Team

The code to retrieve the members of a specific Team is quite easy, it's a standard QueryExpression, but contains a linked entity with a condition inside, it's good as start point for similar queries.

// Id of the specific Team
Guid teamId = new Guid("DAC1F09E-02EF-E311-A2AB-D89D67630DBC");
// main query returing users
QueryExpression userQuery = new QueryExpression("systemuser");
// take all columns
userQuery.ColumnSet = new ColumnSet(true);
// this is the intersect condition
LinkEntity teamLink = new LinkEntity("systemuser", "teammembership", "systemuserid", "systemuserid", JoinOperator.Inner);
// this is the condition to use the specific Team
ConditionExpression teamCondition = new ConditionExpression("teamid", ConditionOperator.Equal, teamId);
// add the condition to the intersect
teamLink.LinkCriteria.AddCondition(teamCondition);
// add the intersect to the query
userQuery.LinkEntities.Add(teamLink); 
//get the results
EntityCollection retrievedUsers = service.RetrieveMultiple(userQuery);
// fetch the results
foreach (Entity user in retrievedUsers.Entities)
{
    // Id of the user
    var userId = user.Id;
    // FullName of the user 
    var userFullName = user.Contains("fullname") ? user["fullname"].ToString() : "";
}