I have successfully created a data extract widget. It works great.

I would now like to be able to set a limit say of 5000sqm or something.

I have seen other sites do this. They have a message pop up saying:

you have exceeded the size limitation, reduce your area of interest.

Looking for some sugestions on how to achieve this.

here is some examples of sites that do what I would like to achieve



We are an ESRI site, using Flex 3.6 viewer and Flex SDK 4.6. Hope that makes sense.

  • Welcome to GIS SE! Would you be able to edit your question to include the GIS software and version that you are using, please? – PolyGeo Sep 15 '14 at 5:33
  • At what point in the process does the "exceeded limitation" message pop up? Do you have an example URL of a site that does that? – Bjorn Svensson Sep 15 '14 at 16:55
  • seamless (or the national map, does it) – If you do not know- just GIS Sep 15 '14 at 17:44

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