ARCEngine中符号选择器的实现

╰+哭是因爲堅強的太久メ 2021-09-17 09:30 396阅读 0赞

private void axTOCControl1_OnMouseDown(object sender, ITOCControlEvents_OnMouseDownEvent e)
                    {
                        esriTOCControlItem item = esriTOCControlItem.esriTOCControlItemNone;
                        IBasicMap map = null; ILayer layer = null;
                        object other = null; object index = null;
                        this.axTOCControl1.HitTest(e.x, e.y, ref item, ref map, ref layer, ref other, ref index);
    
                        if (item == esriTOCControlItem.esriTOCControlItemLegendClass)
                        {
                            IFeatureLayer layerS;
                            layerS = layer as IFeatureLayer;
                            ILegendClass plc = new LegendClassClass();
                            ILegendGroup plg = new LegendGroupClass();
    
                            if (other is ILegendGroup)
                            {
                                plg = (ILegendGroup)other;
                            }
                            plc = plg.get_Class((int)index);
                            ISymbol pSym;
                            pSym = plc.Symbol;
                            ISymbolSelector pSymbolSelector = new SymbolSelectorClass();
                            pSymbolSelector.AddSymbol(pSym);
                            bool b = pSymbolSelector.SelectSymbol(0);
                            if (b)
                            {
                                plc.Symbol = pSymbolSelector.GetSymbolAt(0);
                            }
                            axMapControl1.ActiveView.Refresh();
                            axTOCControl1.Refresh();
                        }
                }

# **运行效果：**![20181220121632121.gif][] #

[20181220121632121.gif]: /images/20210725/69db8d4e653846b284456cc647c46440.png