Writing code using C# and the DotSpatial library, with the following code:

FeatureSet fs = new FeatureSet(FeatureType.Polygon);
        fs = FeatureSet.Open(Application.StartupPath + "\\MapFile\\Land.shp");

I get this error message:

Cannot implicitly convert type 'DotSpatial.Data.IFeatureSet' to 'DotSpatial.Data.FeatureSet'. An explicit conversion exists (are you missing a cast?)
  • i dont know whether i am missing a cast..
    – ZAJ
    Commented Nov 10, 2015 at 10:27

2 Answers 2


Have you tried:

var featureSet = FeatureSet.Open(Application.StartupPath + "\\MapFile\\Land.shp")

DotSpatial loads shape files by default.

fs = (FeatureSet)FeatureSet.Open(Application.StartupPath + "\\MapFile\\Land.shp");
  • Please include a bit more info about where and how to use, and perhaps even explanation about why this would work.
    – Midavalo
    Commented Jun 18, 2016 at 5:04

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