Create a picklist attribute (Option set)

// ** Create a picklist attribute (Option set) **

PicklistAttributeMetadata pickListAttribute = new PicklistAttributeMetadata

{

    // Set base properties

    SchemaName = "new_picklist",

    DisplayName = new Label("Sample Picklist", _languageCode),

    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),

    Description = new Label("Picklist Attribute", _languageCode),

    // Set extended properties

    // Build local picklist options

    OptionSet = new OptionSetMetadata

    {

        IsGlobal = false,

        OptionSetType = OptionSetType.Picklist,

        Options = 

        {

        new OptionMetadata(

            new Label("Created", _languageCode), null),

        new OptionMetadata(

            new Label("Updated", _languageCode), null),

        new OptionMetadata(

            new Label("Deleted", _languageCode), null)

        }

    }

};

 

// Create the request.

CreateAttributeRequest createAttributeRequest = new CreateAttributeRequest

{

    EntityName = "EntityLogicalName",

    Attribute = pickListAttribute

};

 

// Execute the request. Get Response

CreateAttributeResponse resp = (CreateAttributeResponse)_service.Execute(createAttributeRequest);