1 ILayer pLayer = axMapControl1.get_Layer(0); 2 ILayerEffects pLayerEffects = (ILayerEffects)pLayer; 3 pLayerEffects.Transparency = (short)0; 4 5 axMapControl1.ActiveView.Refresh();
pLayerEffects.Transparency值为0时,图层不透明;
pLayerEffects.Transparency值为100时,图层完全透明。
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