public string GetFilterName(int nFilterNum)
{
var result = string.Empty;
if (_graphBuilder != null && _filterNames == null)
{
DsUtils.EnumFilters(_graphBuilder, out _filterNames);
}
if (_filterNames != null)
{
var filterNames = _filterNames as string[] ?? _filterNames.ToArray();
if (_filterNames != null && nFilterNum < filterNames.Count())
{
result = filterNames[nFilterNum];
}
}
return(result);
}
