Question

C#中如何判断arcgis中图层的存在

Answer 1

                if (axMapControl1.LayerCount > 0)
                {
                    for (int i = 0; i < axMapControl1.LayerCount; i++)
                    {
                        ILayer pLayer = axMapControl1.get_Layer(i);
                        if (pLayer is IFeatureLayer)
                        {
                            MessageBox.Show("IFeatureLayer name : " + pLayer.Name);
                        }
                        else if (pLayer is IRasterLayer)
                        {
                            MessageBox.Show("IRasterLayer name : " + pLayer.Name);
                        }
                    }
                }

Answer 2

图层存在，左边的菜单就能显示。。。要判断的么。。。