[Users] Search tool in Geoext App

[Robert Buckley]

Hi,

I am building a series of basic webviewers which will basically just load wms 
intoa viewport and offer the user navigation tools, a quick zoom combobox, 
legend panel and contents panel.
I have come this far and it is now been asked if I can build a simple search 
mechanism. 

I would like to offer the user a combobox to first pick the layer, then the 
field, then then either enter a word or get a list of entries coming from that 
field.

I believe I have seen something similar in other apps and that it is possible to 
build something like this, but I don´t know where to find any code examples.

Is it true that this search would have to be based on wfs and that a search on 
wms isn´t possible?
Could anyone offer me any help regarding this search mechanism?

thanks for any tips,

Robert

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