private void ExecutePerformSearch(string obj)
{
_proxy.GetConceptByCodeSystemCodeAsync(obj, _selectedNamespace.Id);
}
/// <summary>
/// Does the advanced search.
/// </summary>
/// <param name="isPageChange">If set to <c>true</c> [is page change].</param>
protected override void DoAdvancedSearch(bool isPageChange)
{
_proxy.GetConceptByCodeSystemCodeAsync(AdvancedSearchCriteria.CodeSystemCode, _namspace.Id);
}