i use TStringList to store about 100.000 values.

That's ok, but i would like to know if there are better ways to do that?

I have Values from a Oracle Database with Row-Id's like 2016070502523396 HTCSFVRY

My StringList is sorted, to do a quick IndexOf()

I would need add and IndexOf()

What about VirtualTree? TList ... ?

advices are welcome :-))

Have a look at my generic TVector implementation, written from scratch, based on dynamic array:

https://github.com/xrfang/fpcollection/blob/master/src/units/vector.pas

Regards.

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Landmesser John wrote

i use TStringList to store about 100.000 values. That's ok, but i would like to know if there are better ways to do that?

You can try TFPStringHashTable and TDictionary/THashMap generics. Maybe they will perform faster than TStringList.

Denis

I would need add and IndexOf()

Fast insertion, fast retrieval, definitely a hash table / map. Follow Denis suggestion. I personally prefers fcl-stl's ghashmap (THashmap), but any other similar classes will do.