NDBGJK5.0/Kingo.Plugins/Kingo.Plugin.MapView/Commands/ClearAllGraphicsCommand.cs

using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using KGIS.Framework.Commands;
using KGIS.Framework.Core.Attributes;
using KGIS.Framework.Utils;
using KGIS.Framework.Utils.Helper;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Kingo.Plugin.MapView.Commands
{
    //[PathAttribute("Kingo.Plugin.MapView.Commands.ClearAllGraphicsCommand")]
    public class ClearAllGraphicsCommand : BaseMenuCommand
    {
        public IHookHelper m_hookHelper = null;//获取地图控件和主窗体

        public override void OnClick()
        {
            try
            {
                if (m_hookHelper != null)
                {
                    IGraphicsContainer graphics = m_hookHelper.ActiveView.GraphicsContainer;
                    if (graphics == null)
                    {
                        return;
                    }
                    graphics.Reset();
                    IElement ele = null;
                    while ((ele = graphics.Next()) != null)
                    {
                        IElementProperties eleProp = ele as IElementProperties;
                        if (eleProp.Name == "BaseElement")
                            continue;
                        (ele as IGroupElement).ClearElements();
                    }
                    //graphics.DeleteAllElements();
                    if (this.m_hookHelper != null && this.m_hookHelper.Hook != null && (this.m_hookHelper.Hook as IMapControl4) != null)
                    {
                        //在地图上测量，画一条线或者图形，离开绘制图形界面，功能有错误
                        IMapControl4 currentMap = this.m_hookHelper.Hook as IMapControl4;
                        currentMap.CurrentTool = null;
                        //刷新地图
                        (this.m_hookHelper.Hook as IMapControl4).ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, (this.m_hookHelper.Hook as IMapControl4).ActiveView.Extent);
                    }
                }
                else
                {
                    MessageHelper.Show("hookHelper获取失败");
                    //return;
                }
            }
            catch (Exception ex)
            {
                LogAPI.Debug("点击 清除图形 时异常，异常信息如下：");
                LogAPI.Debug(ex);
                LogAPI.Debug("点击 清除图形 时异常信息结束");
            }
        }

        public override void OnCreate(object Hook)
        {
            try
            {
                if (Hook != null)
                {
                    if (m_hookHelper == null)
                    {
                        m_hookHelper = new HookHelper();
                        m_hookHelper.Hook = Hook;
                    }
                    //m_hookHelper.Hook = hook;
                    if (m_hookHelper.ActiveView == null)
                    {
                        m_hookHelper = null;
                        //return;
                    }
                }
            }
            catch (Exception ex)
            {
                m_hookHelper = new HookHelper();
                m_hookHelper.Hook = null;
                //return;

                LogAPI.Debug("初始化 清除图形 时异常，异常信息如下：");
                LogAPI.Debug(ex);
                LogAPI.Debug("初始化 清除图形 时异常信息结束");
            }
        }

    }

}