topic Re: How to add buffer layer to TOCControl without creating feature class in ArcObjects SDK Questions

How to add buffer layer to TOCControl without creating feature class

ArunYegi — Fri, 18 Jan 2013 04:34:58 GMT

Hi,

I have created buffer polygon using topological operator. Now i want to add that feature(bufferpolygon feature)to mxd(TOCControl) document.
Ho can i add?Please help..

Regrads,
Arun

Re: How to add buffer layer to TOCControl without creating feature class

SteveFang — Fri, 18 Jan 2013 23:16:16 GMT

Hi,

I am not sure it's doable. If you want your buffer polygon to show up in TOC but without writing to disk, try looking at the InMemoryWorkspaceFactoryClass class to create a temp workspace to put your features in.

Steve

Re: How to add buffer layer to TOCControl without creating feature class

ArunYegi — Sat, 19 Jan 2013 03:21:08 GMT

Hi,

I tried this, and it worked.

            IFeatureLayer2 featureLayer = (IFeatureLayer2)map.get_Layer(0);
            IFeatureClass featureClass = featureLayer.FeatureClass;

            ////create a new feature(row)
            IFeature feature = featureClass.CreateFeature();
            feature.Shape = buffPolygon;

            IFeatureLayer bufferLayer = new FeatureLayerClass();
            bufferLayer.Name = "Buffer Layer";
            bufferLayer.FeatureClass = featureClass;
            axMapControl1.AddLayer(bufferLayer);

buffPolygon is the buffer created.

I don't know how efficient this code is. But it works fine

Regards,
Arun