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Dynamics CRM Plugin 獲取當前使用者語言

1033為英語,2052為中文

        public static int? GetCurrentUserLanguageId(IOrganizationService service, Guid userid)
        {
            QueryExpression mySavedQuery = new QueryExpression
            {
                ColumnSet = new ColumnSet("systemuserid", "uilanguageid"),
                EntityName = "usersettings",
                Criteria = new FilterExpression()
                {
                    FilterOperator = Microsoft.Xrm.Sdk.Query.LogicalOperator.And,
                    Conditions =  
                    {        
                        new ConditionExpression  
                        {  
                            AttributeName = "systemuserid",  
                            Operator = ConditionOperator.Equal,  
                            Values = {userid}  
                        }  
                    }
                }
            };

            EntityCollection ec = service.RetrieveMultiple(mySavedQuery);
            if (ec != null && ec.Entities != null && ec.Entities.Count > 0 && ec.Entities[0].Contains("uilanguageid"))
            {
                return (int)(ec.Entities[0]["uilanguageid"]);
            }
            else
            {
                return null;
            }
        }