topic esriViewDrawPhase.esriViewDrawBackground relates what? in ArcObjects SDK Questions

esriViewDrawPhase.esriViewDrawBackground relates what?

kju — Fri, 01 Nov 2013 14:25:39 GMT

Hi,there.
I got some information ref esri help:http://resources.esri.com/help/9.3/arcgisengine/dotnet/2a1de2c3-0c3e-412e-8e1e-1a29d657be8c.htm

It says that esriViewDrawBackground relates to the 'bottom layer',I confuse about this and I saw some code like:

axMapControl1.PartialRefresh(esriViewDrawPhase.esriViewBackground, null, null);

after tracking a new regtangle to show.

Re: esriViewDrawPhase.esriViewDrawBackground relates what?

kju — Sat, 02 Nov 2013 05:09:12 GMT

Hi,there.
I got some information ref esri help:http://resources.esri.com/help/9.3/arcgisengine/dotnet/2a1de2c3-0c3e-412e-8e1e-1a29d657be8c.htm

It says that esriViewDrawBackground relates to the 'bottom layer',I confuse about this and I saw some code like:
axMapControl1.PartialRefresh(esriViewDrawPhase.esriViewBackground, null, null);
after tracking a new regtangle to show.

At the 10 version of the esri document,It replaced with esriViewGeography.

Why I mustRefresh instead of partial refresh when trying to unselect feature?

kju — Sat, 02 Nov 2013 05:20:03 GMT

Hi friends,I am new to the arc object and the engine.
    Using 'IMapControlDefault.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);' or 'IMapControlDefault.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);' does not work at all.
    using 'IMapControlDefault.Refresh();' or 'IMapControlDefault.ActiveView.Refresh();' instead will work.
    I have searched informations on the esri help document,but it seems none suit or can explain why.