Being reasonably new to the CRM SDK I needed a method to retrieve all users from the system. This was needed as I was doing a piece of work to replicate permissions between CRM business units and SharePoint.
Retrieving all users via a query expression turned out to be quite simple…
private static EntityCollection RetrieveAllUsers(IOrganizationService service)
{
QueryExpression query = new QueryExpression
{
EntityName = "systemuser",
ColumnSet = new ColumnSet(true),
Criteria =
{
Conditions =
{
new ConditionExpression
{
AttributeName = "businessunitid",
Operator = ConditionOperator.NotNull
}
}
}
};
return service.RetrieveMultiple(query);
}
The EntityCollection returns a number of useful attributes, such as the users’ business unit, whether they have a valid licence, account status and so on.
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