Why does IFieldChecker change the name of OID field?

WWalker — Fri, 26 Apr 2019 21:04:21 GMT

The documentation for IFieldChecker states that the interface checks for errors in field names. Specifically, it renames the OID field to "ObjectID" based on 4 cases. When creating a standalone table in a geodatabase, using the IFieldsEdit interface to create the OID field, there are no requirements on what constitutes a valid name for the OID field. However, if the OID field is not named "ObjectID" when fed to the FieldChecker, it is changed to "ObjectID". What constitutes a valid OID field name? Are there any restrictions on valid OID field names in a geodatabase? Will naming my OID field something other than "ObjectID" cause issues? See relevant code below:

    IFields fields = new FieldsClass();
    IFieldsEdit fieldsEdit = (IFieldsEdit)fields;
    fieldsEdit.FieldCount_2 = 10;

    IField field = new Field();
    IFieldEdit fieldEdit = (IFieldEdit)field;
    fieldEdit.Name_2 = "MyOidFieldName";
    fieldEdit.Type_2 = esriFieldType.esriFieldTypeOID;
    fieldsEdit.set_Field(0, field);

// Add other fields here...

    // use IFieldChecker to create validated fields collection
    IFieldChecker fieldChecker = new FieldChecker();
    IEnumFieldError enumFieldError = null;
    IFields validatedFields = null;
    fieldChecker.ValidateWorkspace = (IWorkspace)fws; //fws = my feature workspace
    fieldChecker.Validate(fields, out enumFieldError, out validatedFields);    //<--my OID field name is changed to "ObjectID"

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topic Why does IFieldChecker change the name of OID field? in Developers Questions

Why does IFieldChecker change the name of OID field?