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Cannot convert type 'Microsoft.Xrm.Sdk.OptionSetValue' to 'Microsoft.Xrm.Sdk.EntityReference'

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Posted on by Lee-Martin

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During a code upgrade (to 8.2) I'm getting the following error.

Cannot convert type 'Microsoft.Xrm.Sdk.OptionSetValue' to 'Microsoft.Xrm.Sdk.EntityReference'

my code is

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if (DBStatus.custom_field != null)
InsertStatusHistory("Investigation Outcome Status", ((EntityReference)DBStatus.custom_field).Name, _caseID, service);

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(EntityReference)DBStatus.custom_field).Name is the cause of the error

Can anybody let me know what the upgrade to this code should read like?

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Torrado 1,270 on at

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Hello Lee-Martin,

It seems that you are trying to set a value for a lookup attribute but not using the correct object properties. Probably you are using a constructor that cannot be used with earlier versions of Dynamics 365.

Please check how to set EntityReference: docs.microsoft.com/.../microsoft.xrm.sdk.entityreference.-ctor

You should use something like:

entity.Attributes["lookupFieldName"] = new EntityReference(string logicalName, Guid id);

Hope this helps you.

Please mark the answer as verified if helpful. That will help others in future.

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Lee-Martin 515 on at

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Thank you, but it is an optionset not a lookup

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Torrado 1,270 on at

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Hello,

Then, please refer to this article, about how to set a value for OptionSet field: crmbusiness.wordpress.com/.../

Hope this help you.

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Wahaj Rashid 11,321 on at

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Hi,

Thank you for your query.

If you are sure that the DBStatus.custom_field is an option set, you should pass OptionSetValue or string label instead of Entity Reference (depending on your logic).

You can get the OptionSet Label using Formatted values collection form your entity object.

if (DBStatus.custom_field != null) { string dbStatusLabel = DBStatus.FormattedValues["custom_fiel_name"]; InsertStatusHistory("Investigation Outcome Status", dbStatusLabel, _caseID, service); }

Please note, above code is for your reference, you might need to modify it to match your logic.

More details on getting formatted values:

Get OptionSet Label using FormattedValues property of Entity in Plugin in CRM – Nishant Rana's Weblog

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