好吧,我有这个命令:IOrganizationService.Retrieve(String entityName, Guid ID, ColumnSet columnSet)
参考:IOrganizationService
我尝试了SDK代码示例,但是当创建记录时,使用Guid创建检索信息,如下所示:Guid _accountId = orgService.Create(account);
我想使用帐户(实体)的名称获取此Guid
,我该怎么做?
你必须使用RetrieveMultiple
方法和QueryExpression
来实现它。例如,下面的MSDN code example是自我解释,以获得与lastname = “Brown”
的联系
// Query using ConditionExpression and FilterExpression
ConditionExpression condition1 = new ConditionExpression();
condition1.AttributeName = "lastname";
condition1.Operator = ConditionOperator.Equal;
condition1.Values.Add("Brown");
FilterExpression filter1 = new FilterExpression();
filter1.Conditions.Add(condition1);
QueryExpression query = new QueryExpression("contact");
query.ColumnSet.AddColumns("firstname", "lastname");
query.Criteria.AddFilter(filter1);
EntityCollection result1 = _serviceProxy.RetrieveMultiple(query);
Console.WriteLine();Console.WriteLine("Query using Query Expression with ConditionExpression and FilterExpression");
Console.WriteLine("---------------------------------------");
foreach (var a in result1.Entities)
{
Console.WriteLine("Name: " + a.Attributes["firstname"] + " " + a.Attributes["lastname"]);
}
查询表达式用于检索多个记录的方法,例如IOrganizationService.RetrieveMultiple方法,在对查询表达式指定的结果集执行操作的消息中,如BulkDeleteRequest,以及特定记录的ID不是众所周知。
我使用Query获得了解决方案:
//Query for the GUID of the Account using Account Name
QueryExpression query = new QueryExpression("account");
string[] cols = { "accountid", "name" };
query.Criteria = new FilterExpression();
query.Criteria.AddCondition("name", ConditionOperator.Equal, "Account Name");
query.ColumnSet = new ColumnSet(cols);
var account = Service.RetrieveMultiple(query);
//Casting the reference to GUID
Guid accountId = (Guid)account[0].Attributes["accountid"];
这将使用帐户名称返回Guid信息。
查询表达式是一种选择。我发现效率最低。寻找更常用的方法: