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C#:MapControl基本操作代码整理

1	`来自：<a href="http://www.cnblogs.com/shenchao/p/3591312.html">http://www.cnblogs.com/shenchao/p/3591312.html</a>`
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Windows.Forms;
 
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.Geodatabase;
  
namespace MapCtrol　　　　//直接引用时需替换成自己当前的命名空间
{
    public class MapBaseOperate
    {
        /// <summary>
        /// 添加SHP文当
        /// </summary>
        /// <param name="mapControl"></param>
        public static void AddShapeFile(IMapControlDefault mapControl)
        {
            OpenFileDialog openfileDlg = new OpenFileDialog();
            openfileDlg.Title = "添加shp图层文件";
            openfileDlg.Filter = "map document (*.shp)|*.shp";
            openfileDlg.ShowDialog();
            string filepath = openfileDlg.FileName;
 
            bool exist = File.Exists(filepath);
            if (!exist)
            {
                MessageBox.Show("路径不存在！");
                return;
            }
 
            string path;
            string filename;
            //int istart = filepath.LastIndexOf("\");
            //int iend = filepath.LastIndexOf(".");
            //path = filepath.Substring(0, istart);
            //filename = filepath.Substring(istart + 1, iend - istart - 1);
 
            FileInfo fileinfo = new FileInfo(filepath);
            path = filepath.Substring(0, filepath.Length - fileinfo.Name.Length);
            filename = fileinfo.Name;
            try
            {
                //加载图层文件
                mapControl.AddShapeFile(path, filename);
 
                //设置MapControl的显示范围到数据的全局范围
                mapControl.Extent = mapControl.FullExtent;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("添加图层文件失败！" + ex.Message);
            }
             
        }
 
        /// <summary>
        /// 添加LYR文当
        /// </summary>
        /// <param name="mapControl"></param>
        public static void AddLayerFile(IMapControlDefault mapControl)
        {
            OpenFileDialog openfileDlg = new OpenFileDialog();
            openfileDlg.Title = "添加lyr图层文件";
            openfileDlg.Filter = "map documents (*.lyr)|*.lyr";
            openfileDlg.ShowDialog();
            string filepath = openfileDlg.FileName;
 
            bool exist = File.Exists(filepath);
            if (!exist)
            {
                MessageBox.Show("路径不存在！");
                return;
            }
            try
            {
                mapControl.AddLayerFromFile(filepath);
 
                //设置MapControl的显示范围到数据的全局范围
                mapControl.Extent = mapControl.FullExtent;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("添加图层文件失败！" + ex.Message);
            }
        }
 
        /// <summary>
        /// 删除地图所有图层
        /// </summary>
        public static void DeleteAllLayers(IMapControlDefault mapControl)
        {
            try
            {
                for (int i = mapControl.LayerCount - 1; i >= 0; i-- )
                {
                    mapControl.DeleteLayer(i);
                }
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("删除图层失败！" + ex.Message);
            }
        }
 
        /// <summary>
        /// 将最底图层,移动到最上层
        /// </summary>
        public static void MoveLayerToTop(IMapControlDefault mapControl)
        {
             
            try
            {
                if (mapControl.LayerCount > 0)
                {
                    mapControl.MoveLayerTo(mapControl.LayerCount - 1, 0);
                }
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("移动图层失败！" + ex.Message);
            }
        }
 
        /// <summary>
        /// 加载地图文当
        /// </summary>
        /// <param name="mapControl"></param>
        public static void LoadMapDocument(IMapControlDefault mapControl)
        {
            OpenFileDialog openfileDlg = new OpenFileDialog();
            openfileDlg.Title = "加载地图文当";
            openfileDlg.Filter = "map document (*.mxd)|*.mxd";
            openfileDlg.ShowDialog();
            string filepath = openfileDlg.FileName;
            if (mapControl.CheckMxFile(filepath))
            {
                mapControl.MousePointer = esriControlsMousePointer.esriPointerHourglass;
                mapControl.LoadMxFile(filepath, 0, Type.Missing);
                mapControl.MousePointer = esriControlsMousePointer.esriPointerDefault;
            }
            else
            {
                MessageBox.Show(filepath + "不是有效的地图文当！");
            }
        }
 
        /// <summary>
        /// 加载特定地图文当
        /// </summary>
        /// <param name="mapControl"></param>
        public static void LoadSpecificMapDocument(IMapControlDefault mapControl, string specificMapName)
        {
            OpenFileDialog openfileDlg = new OpenFileDialog();
            openfileDlg.Title = "加载特定地图文当";
            openfileDlg.Filter = "map document (*.mxd)|*.mxd";
            openfileDlg.ShowDialog();
            string filepath = openfileDlg.FileName;
 
            if (mapControl.CheckMxFile(filepath))
            {
                if (string.IsNullOrWhiteSpace(specificMapName))
                {
                    int istart = filepath.LastIndexOf("\");
                    int iend = filepath.LastIndexOf(".");
                    specificMapName = filepath.Substring(istart + 1, iend - istart - 1);
                }
 
                IArray arrayMap = mapControl.ReadMxMaps(filepath, Type.Missing);
                for (int i = 0; i < arrayMap.Count; i++)
                {
                    IMap map = arrayMap.get_Element(i) as IMap;
                    if (specificMapName == map.Name)
                    {
                        mapControl.MousePointer = esriControlsMousePointer.esriPointerHourglass;
                        mapControl.LoadMxFile(filepath, 0, Type.Missing);
                        mapControl.MousePointer = esriControlsMousePointer.esriPointerDefault;
                        break;
                    }
                }
            }
            else
            {
                MessageBox.Show(filepath + "不是有效的地图文当！");
            }
        }
 
        /// <summary>
        /// By MapDocument
        /// </summary>
        public static IMapDocument LoadMapDoc(IMapControlDefault mapControl)
        {
            MapDocument mapdoc = new MapDocument();
 
            try
            {
                OpenFileDialog openfileDlg = new OpenFileDialog();
                openfileDlg.Title = "加载地图文当";
                openfileDlg.Filter = "map document (*.mxd)|*.mxd";
                openfileDlg.ShowDialog();
                string filepath = openfileDlg.FileName;
 
                mapdoc.Open(filepath, "");
 
                for (int i = 0; i < mapdoc.MapCount; i++ )
                {
                    mapControl.Map = mapdoc.get_Map(i);
                }
                mapControl.Refresh();
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("加载地图文当失败" + ex.Message);
                mapdoc = null;
            }
            return mapdoc;
 
        }
 
        /// <summary>
        /// By MapDocument
        /// </summary>
        /// <param name="mapDoc"></param>
        public static void SaveMapDoc(IMapDocument mapDoc)
        {
            if (null == mapDoc)
            {
                MessageBox.Show("保存地图文档失败！");
                return;
            }
 
            if (mapDoc.get_IsReadOnly(mapDoc.DocumentFilename) == true)
            {
                MessageBox.Show("文档只读无法保存！");
            }
             
            try
            {
                mapDoc.Save(mapDoc.UsesRelativePaths,true);
                MessageBox.Show("保存地图文档成功！");
 
            }
            catch (System.Exception ex)
            {
                 MessageBox.Show("保存地图文档失败！" + ex.Message);
            }
 
        }
 
        /// <summary>
        /// By MapDocument
        /// </summary>
        /// <param name="mapDoc"></param>
        public static void SaveAsMapDoc(IMapDocument mapDoc)
        {
            if (null == mapDoc)
            {
                MessageBox.Show("保存地图文档失败！");
                return;
            }
 
            if (mapDoc.get_IsReadOnly(mapDoc.DocumentFilename) == true)
            {
                MessageBox.Show("文档只读无法保存！");
            }
             
            SaveFileDialog savefiledlg = new SaveFileDialog();
            savefiledlg.Title = "保存地图文当";
            savefiledlg.Filter = "map document (*.mxd)|*.mxd";
            savefiledlg.ShowDialog();
            string filepath = savefiledlg.FileName;
            try
            {
                mapDoc.SaveAs(filepath,mapDoc.UsesRelativePaths,true);
                MessageBox.Show("保存地图文档成功！");
 
            }
            catch (System.Exception ex)
            {
                 MessageBox.Show("保存地图文档失败！" + ex.Message);
            }
 
        }
 
        /// <summary>
        /// 缩小
        /// </summary>
        /// <param name="mapControl"></param>
        public static void ZoomOut(IMapControlDefault mapControl)
        {
            try
            {
               mapControl.MousePointer = esriControlsMousePointer.esriPointerPageZoomOut;
            　　//IEnvelope ipEnv = mapControl.TrackRectangle();
            　　IEnvelope ipEnv = mapControl.Extent;
            　　ipEnv.Expand(2, 2, true);
            　　mapControl.Extent = ipEnv;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("缩小失败！" + ex.Message);
            }
        }
 
        /// <summary>
        /// 放大
        /// </summary>
        /// <param name="mapControl"></param>
        public static void ZoomIn(IMapControlDefault mapControl)
        {
            try
            {
               mapControl.MousePointer = esriControlsMousePointer.esriPointerPageZoomIn;
            　　IEnvelope ipEnv = mapControl.TrackRectangle();
            　　if (ipEnv.IsEmpty)
            　　{
                　　ipEnv = mapControl.Extent;
                　　ipEnv.Expand(0.5, 0.5, true);
            　　}
            　　mapControl.Extent = ipEnv;　　　　　　　　　　　　　　　　　　
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("放大失败！" + ex.Message);
            }
        }
 
        /// <summary>
        /// 漫游
        /// </summary>
        /// <param name="mapControl"></param>
        public static void Pan(IMapControlDefault mapControl)
        {
            try
            {
                mapControl.MousePointer = esriControlsMousePointer.esriPointerPagePan;
                //IEnvelope ipEnv = mapControl.Extent;
                mapControl.Pan();
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("漫游失败！" + ex.Message);
            }
        }
 
        /// <summary>
        /// 全图
        /// </summary>
        /// <param name="mapControl"></param>
        public static void FullExtent(IMapControlDefault mapControl)
        {
            try
            {
                mapControl.Extent = mapControl.FullExtent;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("全图失败！" + ex.Message);
            }
        }
 
        /// <summary>
        /// 写文字(待优化)
        /// </summary>
        /// <param name="mapControl"></param>
        /// <param name="pGeom"></param>
        /// <param name="pColor"></param>
        /// <param name="text"></param>
        public static void DrawMapText(IMapControlDefault mapControl, IGeometry pGeom, IRgbColor pColor, string text)
        {
            try
            {
                if (null == pColor)
                {
                    pColor = new RgbColorClass();
                    pColor.Red = 255;
                    pColor.Green = 0;
                    pColor.Blue = 0;
                }
                ITextSymbol textsymbol = new TextSymbolClass();
                textsymbol.Color = pColor;
                if (null == text)
                {
                    text = "Draw Text";
                }
                textsymbol.Text = "Text";
                object symbol = textsymbol;
                mapControl.DrawText(pGeom, text, ref symbol);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("写文字失败！" + ex);
            }
              
        }
 
        /// <summary>
        /// 画图
        /// </summary>
        /// <param name="mapControl"></param>
        /// <param name="pGeom"></param>
        /// <param name="pColor"></param>
        /// <param name="width"></param>
        public static void DrawMapShape(IMapControlDefault mapControl, IGeometry pGeom, IRgbColor pColor, int width)
        {
            try
            {
                if (null == pColor)
                {
                    pColor = new RgbColorClass();
                    pColor.Red = 255;
                    pColor.Green = 255;
                    pColor.Blue = 0;
                }
 
                if (width < 1 || width > 20)
                {
                    width = 5;
                }
                object symbol = null;
                if (pGeom.GeometryType == esriGeometryType.esriGeometryPolyline)
                {
                    ISimpleLineSymbol simpleLine = new SimpleLineSymbolClass();
                    simpleLine.Color = pColor;
                    simpleLine.Width = width;
                    symbol = simpleLine;
                }
                else
                {
                    ISimpleFillSymbol simpleFill = new SimpleFillSymbolClass();
                    simpleFill.Color = pColor;
                    symbol = simpleFill;
                }
 
                mapControl.DrawShape(pGeom, ref symbol);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("画图失败！" + ex);
            }
        }
 
        /// <summary>
        /// 颜色
        /// </summary>
        /// <param name="r"></param>
        /// <param name="g"></param>
        /// <param name="b"></param>
        /// <param name="t"></param>
        /// <returns></returns>
        public static IRgbColor GetColor(int r, int g, int b, int t)
        {
            IRgbColor rgbcolor = new RgbColorClass();
            rgbcolor.Red = r;
            rgbcolor.Green = g;
            rgbcolor.Blue = b;
            rgbcolor.Transparency = (byte)t;
            return rgbcolor;
        }
 
        /// <summary>
        /// 框选指定区域（鹰眼功能）
        /// </summary>
        /// <param name="envelope">e.NewEnvelope</param>
        /// <param name="mapControl"></param>
        public static void ShowRectangleByEnvelope(IEnvelope envelope, IMapControlDefault mapControl)
        {
            try
            {
                IGraphicsContainer graphicsContainer = mapControl.Map as IGraphicsContainer;
                IActiveView activeView = graphicsContainer as IActiveView;
 
                //在绘制前，清除axMapControl2中的任何图像元素
                graphicsContainer.DeleteAllElements();
                IElement element = new RectangleElementClass();
                element.Geometry = envelope;
                //设置鹰眼中的红线
                //产生一个符号对象
                ILineSymbol outLineSymbol = new SimpleLineSymbolClass();
                outLineSymbol.Width = 2;
                outLineSymbol.Color = GetColor(255, 0, 0, 255);
 
                //设置颜色属性
                //设置填充符号属性
                IFillSymbol fillsymbol = new SimpleFillSymbolClass();
                fillsymbol.Color = GetColor(9, 0, 0, 0);
                fillsymbol.Outline = outLineSymbol;
                IFillShapeElement fillShapeElement = element as IFillShapeElement;
                fillShapeElement.Symbol = fillsymbol;
                graphicsContainer.AddElement((IElement)fillShapeElement, 0);
                activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("框选指定区域失败！" + ex);
            }
        }
 
        /// <summary>
        /// 清除选择
        /// </summary>
        /// <param name="mapControl"></param>
        public static void ClearSelection(IMapControlDefault mapControl)
        {
            try
            {
                IActiveView activeView = (IActiveView)mapControl.Map;
                //清除数据集前必须先刷新
                activeView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, mapControl.get_Layer(0), null);
                mapControl.Map.ClearSelection();
                activeView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, mapControl.get_Layer(0), null);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("清除选择失败！" + ex);
            }
        }
 
        /// <summary>
        /// 名称查询
        /// </summary>
        /// <param name="mapControl"></param>
        /// <param name="value"></param>
        public static void SelectByName(IMapControlDefault mapControl, string field, string value)
        {
            try
            {
                string selectName = value.Trim();
                ILayer layer = mapControl.Map.get_Layer(0);
                IFeatureLayer featureLayer = layer as IFeatureLayer;
                IFeatureClass featureClass = featureLayer.FeatureClass;
                IQueryFilter queryFilter = new QueryFilterClass();
                IFeatureCursor featureCursor;
                IFeature feature = null; ;
                queryFilter.WhereClause = field + " = " + value;
                featureCursor = featureClass.Search(queryFilter, true);
                feature = featureCursor.NextFeature();
                if (null != feature)
                {
                    mapControl.Map.SelectFeature(layer, feature);
                    mapControl.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
                }
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("依据名称查询选中要素失败！" + ex);
            }
        }
 
        /// <summary>
        /// 依据指定的Geometry（Shape）选中要素
        /// </summary>
        /// <param name="mapControl"></param>
        /// <param name="geometry"></param>
        public static void SelectByShape(IMapControlDefault mapControl, IGeometry geometry)
        {
            try
            {
                mapControl.Map.SelectByShape(geometry, null, false);
                mapControl.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("依据指定的Geometry（Shape）选中要素失败！" + ex);
            }
        }
 
        /// <summary>
        /// 同步到MapControl控件
        /// </summary>
        public static void CopyToMapControl(IMapControlDefault mapControl, IMapControlDefault toMapControl)
        {
            try
            {
                IObjectCopy objCopy = new ObjectCopyClass();
                object copyFromMap = mapControl.Map;
                object copyMap = objCopy.Copy(copyFromMap);
                object copyToMap = toMapControl.ActiveView.FocusMap;
                objCopy.Overwrite(copyMap, ref copyToMap);
                toMapControl.Extent = mapControl.FullExtent;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("Map间数据同步失败！" + ex);
            }
             
        }
 
        /// <summary>
        /// 同步到PageLayout控件
        /// </summary>
        public static void CopyToPageLayout(IMapControlDefault mapControl, IPageLayoutControlDefault pageLayoutControl)
        {
            try
            {
                IObjectCopy objCopy = new ObjectCopyClass();
                object copyFromMap = mapControl.Map;
                object copyMap = objCopy.Copy(copyFromMap);
                object copyToMap = pageLayoutControl.ActiveView.FocusMap;
                objCopy.Overwrite(copyMap, ref copyToMap);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("Map与PageLayout数据同步失败！" + ex);
            }
             
        }
 
        /// <summary>
        /// 屏幕变化后刷新屏幕
        /// </summary>
        /// <param name="mapControl"></param>
        public static void AfterScreenDraw(IMapControlDefault mapControl)
        {
            try
            {
                IActiveView activeView = (IActiveView)mapControl.ActiveView.FocusMap;
                IDisplayTransformation displayTransformation = activeView.ScreenDisplay.DisplayTransformation;
                displayTransformation.VisibleBounds = mapControl.Extent;
                mapControl.ActiveView.Refresh();
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("刷新屏幕失败！" + ex);
            }
 
        }
    }
}
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 将文件转换为base64字符串，然后还原
 读取2007以上版本的excel(xslx格式)
原文地址：https://www.cnblogs.com/janeaiai/p/4920600.html