Prevent duplicate user in Email

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Posted on by FikriHailal

121

Hi, i have requirement to create email in CRM using C#.

The following is a piece of code used to get the list of recipients.

for (int iusr = 0; iusr < dtableUserQuality.Rows.Count; iusr  )
{
systemuserid = Guid.Empty;
systemuserid = new Guid(dtableUserQuality.Rows[iusr][0].ToString());
QueryExpression to_query = new QueryExpression("systemuser");
to_query.Criteria = new FilterExpression();
to_query.Criteria.AddCondition("systemuserid", ConditionOperator.Equal, systemuserid);
to_query.ColumnSet = new ColumnSet(true);

EntityCollection to_colect_email = _service.RetrieveMultiple(to_query);


toUserParty.EntityName = "systemuser";

foreach (Entity to_ent_email in to_colect_email.Entities)
{
string fullname = to_ent_email.GetAttributeValue("fullname");



Entity fromParty = new Entity("activityparty");
EntityReference userParty = new EntityReference("systemuser", to_ent_email.Id);

fromParty.Attributes.Add("partyid", userParty);

toUserParty.Entities.Add(fromParty);

}
}

if (toUserParty.Entities.Count > 0)
{
email.Attributes.Add("to", toUserParty);
}

The email created succesfully, however the code allowed duplicate user exist in the recepients list.

how to prevent users already in the recipient list from being duplicated.

Thanks

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David Jennaway 14,065 on at

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There are 2 ways you could do this:

If the query that you use to get the list of users can be written as one query on the systemuser entity that can be executed just once, then you can set Distinct = true, so that it will only return each record once. You currently aren't doing this, as you're submitting the query within a loop

Or, before you add the recipient to the toUserParty.Entities collection, check if it's already been added. I normally create a separate collection (of type List<Guid> ) to track the Guids of the records in a collection

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Anthony Dong on at

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Some sample code for your reference at docs.microsoft.com/.../hh210213(v=crm.8)

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gdas 50,091 Moderator on at

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Hi ,

Try with this -

for (int iusr = 0; iusr < dtableUserQuality.Rows.Count; iusr ) { systemuserid = Guid.Empty; systemuserid = new Guid(dtableUserQuality.Rows[iusr][0].ToString()); Entity to_colect_email = _service.Retrieve("systemuser", systemuserid, new ColumnSet(true)); //Use retrieve as you are using Guid in the filter operation , and put column name which you need toUserParty.EntityName = "systemuser"; string fullname = to_colect_email.GetAttributeValue("fullname"); // I dont see any reason for this code Entity fromParty = new Entity("activityparty"); EntityReference userParty = new EntityReference("systemuser", to_colect_email.Id); fromParty.Attributes.Add("partyid", userParty); toUserParty.Entities.Add(fromParty); } if (toUserParty.Entities.Count > 0) { email.Attributes.Add("to", toUserParty); }

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FikriHailal 121 on at

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Hi Gouthan, i found that after using your code the results didn't change.

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gdas 50,091 Moderator on at

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Its seems dtableUserQuality. table has duplicate entry.

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FikriHailal 121 on at

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Hi david, using your second idea, finally i can prevent duplicate recepient. Thanks

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