EntityReference中的DynamicsCRM QueryExpression Criteria

时间:2016-02-28 14:59:45

标签: powershell dynamics-crm-2011 dynamics-crm dynamics-crm-2013

我正在使用PowerShell中的CRM SDK,尝试查询链接到特定帐户名称的合同,如果我对帐户GUID进行查询,我会得到结果,但我想查询EntityReference对象中的名称,而不是GUID,例如(这很好):

$query = new-object Microsoft.Xrm.Sdk.Query.QueryExpression('new_contract')
$query.Criteria.AddCondition('new_account', [Microsoft.Xrm.Sdk.Query.ConditionOperator]::Equal, $AccountGuid)

以上结果如下:

Key                 Value
---                 -----
createdby           Microsoft.Xrm.Sdk.EntityReference
createdon           21/10/2014
modifiedby          Microsoft.Xrm.Sdk.EntityReference
modifiedon          28/02/2016
modifiedonbehalfby  Microsoft.Xrm.Sdk.EntityReference
new_account         Microsoft.Xrm.Sdk.EntityReference
[...]               [...]

new_account属性为:

Id            : dab2909d-6149-e411-93fc-005056af5481
LogicalName   : account
Name          : CustomerNameText
KeyAttributes : {}
RowVersion    : 
ExtensionData : System.Runtime.Serialization.ExtensionDataObject

我想为new_contract创建new_account名称LIKE CustomerNameText

的查询

我试过了:

  $query.Criteria.AddCondition('new_account',([Microsoft.Xrm.Sdk.EntityReference].Attributes['new_account']).Name, [Microsoft.Xrm.Sdk.Query.ConditionOperator]::Like, $AccountName)

但它不起作用会收到以下错误:

Exception calling "RetrieveMultiple" with "1" argument(s): "Link entity with name or alias new_account is not found"
At line:2 char:5
+     $temp = $service.RetrieveMultiple($query);
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : FaultException`1

我希望我很清楚,但如果没有,请回答任何问题。

Powershell代码更可取,c#也可以

...谢谢

1 个答案:

答案 0 :(得分:3)

您无法对QueryExpression名称使用EntityReference条件。使用EntityReference,您只能使用Guid

如果要按名称查询,可以在QueryExpression中使用LinkEntity。您必须使用LinkCriteria

var q = new QueryExpression();
            q.EntityName = "new_contract";
            q.ColumnSet = new ColumnSet();
            q.ColumnSet.Columns.Add("new_contractid");

            q.LinkEntities.Add(new LinkEntity("new_contract", "account", "new_account", "accountid", JoinOperator.Inner));
            q.LinkEntities[0].Columns.AddColumns("accountid", "name");
            q.LinkEntities[0].EntityAlias = "temp";
            q.LinkEntities[0].LinkCriteria.AddCondition("name", ConditionOperator.Equal, "yourAccountName");

P.S 如果以上代码段不适合您。并且您希望按accountName检索。要做到这一点,请使用帐户Guid使用现有代码。但首先你需要检索accountGuid by name。在那种情况下

  public Guid getAccountGuidByName(string name)
    {

        QueryExpression accountQuery = new QueryExpression("account");
        accountQuery.Criteria.AddCondition("name", ConditionOperator.Equal, "yourAccountName");
        EntityCollection entCol = Service.RetrieveMultiple(accountQuery);
        if (entCol.Entities.Count > 0)
        {
            return entCol.Entities[0].Id;
        }
       return Guid.Empty;

    }

仅举例来说我不知道​​你怎么能在powershell中调用函数等但是我提供了c#代码,正如你说的那样好吧如果它在C#然后使用它如下:

$query = new-object Microsoft.Xrm.Sdk.Query.QueryExpression('new_contract')
$query.Criteria.AddCondition('new_account', [Microsoft.Xrm.Sdk.Query.ConditionOperator]::Equal, getAccountGuidByName("yourAccountName"));