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private void DefineInitialValueForXpoComboBoxFamily()
{
FIN_ArticleFamily xpoArticleFamily = ((FIN_ArticleFamily)_xpoComboBoxFamily.Value);
FIN_ArticleSubFamily xpoArticleSubFamily = ((FIN_Article)DataSourceRow).SubFamily;
Guid currentOid = Guid.Empty;
if (xpoArticleFamily != null)
{
currentOid = ((FIN_ArticleFamily)_xpoComboBoxFamily.Value).Oid;
}
CriteriaOperator criteria = CriteriaOperator.Parse(string.Format("Family = '{0}'", currentOid));
_xpoComboBoxSubFamily.UpdateModel(criteria, xpoArticleSubFamily);
}