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Hello Experts,
i have a problem, i try to retrieve Child Records to Update some Attributes but i dont know how to do that.
I read so many Questions and Anwers, blogs and so on but i allways get an Error...
Can anyone help me?
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Report Guid seminarID = Guid.Empty;
EntityReference seminarortId = null;
EntityReference aref = seminarRef.Get<EntityReference>(executionContext);
// Abrufschein ermittlen
Entity seminar = service.Retrieve(aref.LogicalName, aref.Id, new ColumnSet("mrd_seminarort"));
seminarID = seminar.GetAttributeValue<Guid>("mrd_seminarid");
seminarortId = seminar.GetAttributeValue<EntityReference>("mrd_seminarort");
//Teilnehmer ermitteln
Entity teilnehmer = new Entity();
QueryExpression query = new QueryExpression("mrd_teilnehmer");
query.ColumnSet = new ColumnSet(true);
query.Criteria.AddCondition("mrd_ak_seminarid", ConditionOperator.Equal, seminarID);
// query ausführen
EntityCollection retrieveedxpan = service.RetrieveMultiple(query);
tracingService.Trace(Convert.ToString(retrieveedxpan.Entities.Count));
if (retrieveedxpan.Entities.Count == 0)
{
// Template nicht gefunden
tracingService.Trace("Es wurden keine Teilnehmer gefunden!");
}
else
{
foreach (var entity in retrieveedxpan.Entities)
{
tracingService.Trace(Convert.ToString(seminarortId));
teilnehmer["mrd_seminarort"] = seminarortId;
_serviceProxy.Update(teilnehmer);
}
}
*This post is locked for comments
Thank you Pawel :)
It works perfectly :)
Have a nice day!
Well currently you are not updating anything as you did not provide ID for the entity you are trying to update. Check this code with my comments:
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Answers (
//Entity teilnehmer = new Entity(); DON'T do this here, you don't have to create it here as you don't use it here
QueryExpression query = new QueryExpression("mrd_teilnehmer");
query.ColumnSet = new ColumnSet(true);
query.Criteria.AddCondition("mrd_ak_seminarid", ConditionOperator.Equal, seminarID);
// query ausführen
EntityCollection retrieveedxpan = service.RetrieveMultiple(query);
tracingService.Trace(Convert.ToString(retrieveedxpan.Entities.Count));
if (retrieveedxpan.Entities.Count == 0)
{
// Template nicht gefunden
tracingService.Trace("Es wurden keine Teilnehmer gefunden!");
}
else
{
foreach (var entity in retrieveedxpan.Entities)
{
//now it makes sense to create teilnehmer
Entity teilnehmer = new Entity("mrd_teilnehmer"); //but you have to provide name of the entity!
teilnehmer.Id = entity.Id; //And for sure you need to provide ID, if you want to update!
tracingService.Trace(Convert.ToString(seminarortId));
teilnehmer["mrd_seminarort"] = seminarortId;
_serviceProxy.Update(teilnehmer);
}
}
Hi,
Can you share some details about your entity and related entity and on which event you are registering your plugin.
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