[英]The given key was not present in the dictionary - MS CRM FetchXML
巨大的編輯:
似乎通過嘗試使事情變得簡單來表明我使問題變得更加復雜。
這是全部功能:
[AllowAnonymous]
[HttpGet]
public HttpResponseMessage getCPDActiviesByMemberNumber(int memberNumber) {
List<Entity> sourceData = null;
List<CPDActivity> membersActivites = new List<CPDActivity>();
List<member> memberRecords = new List<member>();
try {
string xmlFile = "";
string memberNumberString = memberNumber.ToString();
xmlFile = File.ReadAllText(AppDomain.CurrentDomain.BaseDirectory + @"_Code\Fetch\MembersActivities.xml");
xmlFile = String.Format(xmlFile, memberNumberString);
OrganizationServiceClient crm = new OrganizationServiceClient();
sourceData = crm.GetEntities(xmlFile);
if (sourceData.Count > 0) {
member member = new member();
foreach (Entity entity in sourceData) {
CPDActivity cpdActivity = new CPDActivity();
// sb_membership
member.ID = entity.GetAttributeValue<Guid>("sb_membershipid");
member.MemberNumber = entity.GetAttributeValue<String>("sb_membershipno");
member.ContactID = entity.GetAttributeValue<EntityReference>("sb_contactid").Id.ToString(); ;
member.MembershipStatus = entity.FormattedValues["statuscode"].ToString();
member.MemberGrade = entity.GetAttributeValue<String>("sb_name");
member.StartDate = entity.GetAttributeValue<DateTime>("sb_startdate").ToString();
member.ExpiryDate = entity.GetAttributeValue<DateTime>("sb_expirydate").ToString();
// contact (membercontact)
member.Title = entity.FormattedValues["membercontact.sb_title"].ToString();
member.FirstName = entity.GetAttributeValue<AliasedValue>("membercontact.firstname").Value.ToString();
member.LastName = entity.GetAttributeValue<AliasedValue>("membercontact.lastname").Value.ToString();
member.RegionCode = entity.GetAttributeValue<AliasedValue>("membercontact.sb_regioncode").Value.ToString();
member.Email = entity.GetAttributeValue<AliasedValue>("membercontact.emailaddress1").Value.ToString();
// contact (membercontact) - sb_cpdactivity (cpdactivity)
member.Region = entity.GetAttributeValue<AliasedValue>("region.sb_name").Value.ToString();
// sb_cpdactivity (cpdactivity)
cpdActivity.ActivityName = entity.GetAttributeValue<AliasedValue>("cpdactivity.sb_name").Value.ToString();
cpdActivity.CreatedOn = (DateTime)entity.GetAttributeValue<AliasedValue>("cpdactivity.createdon").Value;
cpdActivity.CpdHours = Convert.ToSingle(entity.GetAttributeValue<AliasedValue>("cpdactivity.sb_cpdhours").Value);
cpdActivity.ActivityDate = (DateTime)entity.GetAttributeValue<AliasedValue>("cpdactivity.sb_activitydate").Value;
cpdActivity.StatusCode = entity.FormattedValues["cpdactivity.statuscode"].ToString();
cpdActivity.CpdActivityID = (Guid)entity.GetAttributeValue<AliasedValue>("cpdactivity.sb_cpdactivityid").Value;
cpdActivity.MemberContactID = ((EntityReference)entity.GetAttributeValue<AliasedValue>("cpdactivity.sb_membercontactid").Value).Id;
//
cpdActivity.EventType = entity.GetAttributeValue<AliasedValue>("cpdactivity.sb_type").Value.ToString(); // <<<<< problem here
cpdActivity.EventType = entity.FormattedValues["cpdactivity.sb_type"].ToString(); // <<<<< problem here
//
member.Activities.Add(cpdActivity);
memberRecords.Add(member);
}
return Request.CreateResponse(HttpStatusCode.OK, memberRecords);
} else {
return Request.CreateResponse(HttpStatusCode.OK, "getCPDActiviesByMemberId " + "no records found");
}
} catch (Exception ex) {
string error = ex.Message.ToString();
string errors = error;
return Request.CreateResponse(HttpStatusCode.OK, "getMembers - error : " + error);
}
}
這是FetchXML:
<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="false">
<entity name="sb_membership">
<attribute name="sb_contactid" />
<attribute name="sb_name" />
<attribute name="sb_membershipno" />
<attribute name="sb_expirydate" />
<attribute name="sb_startdate" />
<attribute name="statuscode" />
<attribute name="sb_membershipid" />
<order attribute="sb_name" descending="false" />
<filter type="and">
<condition attribute="statecode" operator="eq" value="0" />
<condition attribute="sb_membershipno" operator="eq" value='{0}' />
</filter>
<link-entity name="contact" from="contactid" to="sb_contactid" visible="false" link-type="outer" alias="membercontact">
<attribute name="sb_title" />
<attribute name="lastname" />
<attribute name="firstname" />
<attribute name="mobilephone" />
<attribute name="emailaddress1" />
<attribute name="sb_regioncode" />
<link-entity name="sb_geographicregion" from="sb_regioncode" to="sb_regioncode" link-type="outer" alias="region">
<attribute name="sb_name" />
</link-entity>
</link-entity>
<link-entity name="sb_cpdactivity" from="sb_membercontactid" to="sb_contactid" visible="false" link-type="outer" alias="cpdactivity">
<attribute name="sb_cpdactivityid" />
<attribute name="sb_membercontactid" />
<attribute name="sb_name" />
<attribute name="sb_type" />
<attribute name="createdon" />
<attribute name="sb_activitydate" />
<attribute name="statuscode" />
<attribute name="sb_cpdhours" />
</link-entity>
</entity>
</fetch>
問題是,當嘗試獲取sb_type(注意,不是前面提到的eventdateid)屬性(確實出現在數據庫中的列)時,出現錯誤“字典中不存在給定鍵”。 因此,列DOES會出現在數據庫表中,並在fetchXML中被引用,與在數據庫中的引用完全相同,但是在調試實體時查看實體時,該屬性未像在fetchXML中的其他列(例如'sb_name')一樣列出。
這是FetchXML查詢的預期行為。 當您的結果集的所有記錄的列(屬性)中都將具有NULL
值時,該屬性將不包括在EntityCollection
結果集中。
如果至少一個記錄具有該列的值,則結果集將包括該列。
做這樣的檢查並繼續。
var thing;
if(entity.Contains("sb_eventdateid")){
thing = entity.GetAttributeValue<Guid>("sb_eventdateid");
}
更新 :最佳做法是在獲取null
列時(如下所示)在訪問.Value
之前處理以下null
檢查。
if(entity.Attributes.Contains("cpdactivity.sb_type") && entity.GetAttributeValue<AliasedValue>("cpdactivity.sb_type") != null)
{
cpdActivity.EventType = entity.GetAttributeValue<AliasedValue>("cpdactivity.sb_type").Value.ToString();
cpdActivity.EventType = entity.FormattedValues["cpdactivity.sb_type"].ToString();
}
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