AE C# 图片和文本标注（通过查询）

查询数据后，图形标注

if (myds1V.Tables[0].Rows.Count > 0)
            {
                IActiveView pActiveView = (IActiveView)this.axMapControl1.Map;
                this.axMapControl1.Map.ClearSelection();
                pActiveView.Refresh();         
                IGraphicsContainer pGraphicsContainer = (IGraphicsContainer)pActiveView;
                pGraphicsContainer.DeleteAllElements();
                ILayer pLayer = this.axMapControl1.Map.get_Layer(0);
                if (pLayer.Name=="jx-xian")
                {
                    IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;
                    IQueryFilter pQueryFilter = new QueryFilterClass();
                    IEnvelope pEnvelope = new EnvelopeClass();
                    IRgbColor rgbColor = new RgbColorClass();
                    IPictureMarkerSymbol pictureMarkerSymbol = new PictureMarkerSymbolClass();
                    //  IPoint pPoint = new PointClass();
                    string fileName = "iconimg\\ico\\point.png";
                    pictureMarkerSymbol.CreateMarkerSymbolFromFile(esriIPictureType.esriIPicturePNG, fileName);
                    pictureMarkerSymbol.Angle = 0;
                    pictureMarkerSymbol.BitmapTransparencyColor = rgbColor;
                    pictureMarkerSymbol.Size = 32;
                    pictureMarkerSymbol.XOffset = 0;
                    pictureMarkerSymbol.YOffset = 0;
                    for (int rn = 0; rn < myds1V.Tables[0].Rows.Count; rn++)
                    {
                        try
                        {


                            pQueryFilter.WhereClause = "名称 =" + "'" + myds1V.Tables[0].Rows[rn][1].ToString().Trim() + "'";
                            IFeatureSelection pFeatureSelection = pFeatureLayer as IFeatureSelection; //用来记录最终的结果，由于用户可能在不关闭此窗口的情况下进行
                            int iSelectedFeaturesCount = pFeatureSelection.SelectionSet.Count;//SelectionSet:The selected set of features.
                            esriSelectionResultEnum selectMethod;//用来记录处理结果的方法，用在用whereclause查询的地方
                            selectMethod = esriSelectionResultEnum.esriSelectionResultNew;


                            pFeatureSelection.SelectFeatures(pQueryFilter, selectMethod, false);//执行查询
                            //如果本次查询后，查询的结果数目没有改变，则认为本次查询没有产生新的结果
                            if (pFeatureSelection.SelectionSet.Count != 0)
                            {


                                IEnumFeature pEnumFeature = axMapControl1.Map.FeatureSelection as IEnumFeature;
                                IFeature pFeature = pEnumFeature.Next();




                                while (pFeature != null)
                                {
                                    // geometry = pFeature.ShapeCopy;
                                    pEnvelope.Union(pFeature.Extent);
                                    double mapX, mapY;
                                    mapX = (pFeature.Extent.XMax + pFeature.Extent.XMin) / 2;
                                    mapY = (pFeature.Extent.YMax + pFeature.Extent.YMin) / 2;
                                    IPoint pPoint = new PointClass();
                                    pPoint.PutCoords(mapX, mapY);
                                    IPictureMarkerSymbol pPictureMarkerSymbol = new PictureMarkerSymbolClass();
                                    pPictureMarkerSymbol.Size = 20;
                                    pPictureMarkerSymbol.CreateMarkerSymbolFromFile(esriIPictureType.esriIPicturePNG, fileName);
                                    IMarkerElement pMarkerElement = new MarkerElementClass();
                                    pMarkerElement.Symbol = pPictureMarkerSymbol as IMarkerSymbol;
                                    IElement pElement = (IElement)pMarkerElement;
                                    pElement.Geometry = pPoint;
                                    pGraphicsContainer.AddElement(pElement, 0);
                                    axMapControl1.FlashShape(pFeature.Shape, 3, 500, null);
                                    pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);




                                    pFeature = pEnumFeature.Next();
                                }


                            }
                        }
                        catch (Exception ex)
                        {
                            MessageBox.Show("您的查询语句可能有误,请检查 | " + ex.Message);
                            return;
                        }
                    }
                }
               
                pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
                FrmEditSpecimen frmEditSpec = new FrmEditSpecimen(myds);
                frmEditSpec.Show();
            }

查询数据后，图形或文本标注

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

using ESRI.ArcGIS.Carto;        
using ESRI.ArcGIS.Controls;     
using ESRI.ArcGIS.Geodatabase;  
using ESRI.ArcGIS.Geometry;      
using ESRI.ArcGIS.Display;      

namespace GIS_Demo1
{
    public partial class PropertyQueryFrm : Form
    {
        public IMapControl2 pMapControl;
        public IMap pMap;
        public int iLayerIndex;
        public int iFieldIndex;

        public PropertyQueryFrm(IMapControl2 pFMapControl)
        {
            pMapControl = pFMapControl;
            pMap = pFMapControl.Map;
            InitializeComponent();
        }

        private void PropertyQueryFrm_Load(object sender, EventArgs e)
        {
            ILayer pLayer;
            for (int i = 0; i < pMap.LayerCount; i++)
            {
                pLayer = pMap.get_Layer(i);
                clbLayers.Items.Add(pLayer.Name);
            }
        }

        //属性查图 
        private void btnQuery_Click(object sender, EventArgs e)
        {
            int ct = 0;
            if (clbLayers.Items.Count <= 0)
            {
                MessageBox.Show("请先加入待选择查询的图层", "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return;
            }

            for (int i = 0; i < clbLayers.Items.Count; i++)
            {
                if (clbLayers.GetItemChecked(i))
                {
                    ct = ct + 1;
                }
            }
            if (ct <= 0)
            {
                MessageBox.Show("请选择查询的图层", "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return;
            }
            IActiveView pActiveView = (IActiveView)pMap;
            pMap.ClearSelection();
            pActiveView.Refresh();
            IQueryFilter pQueryFilter = new QueryFilterClass();
            IFeatureLayer pFeatureLayer;
            IGraphicsContainer pGraphicsContainer = (IGraphicsContainer)pActiveView;
            pGraphicsContainer.DeleteAllElements();

            for (int i = 0; i < clbLayers.Items.Count; i++)
            {
                if (clbLayers.GetItemChecked(i))
                {
                    //iLayerIndex = clbLayers.Items.IndexOf(i);
                    pFeatureLayer = (IFeatureLayer)pMap.get_Layer(i);
                    if (pFeatureLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPoint)
                    {
                        IFields pFields = pFeatureLayer.FeatureClass.Fields;
                        IField pField = pFields.get_Field(iFieldIndex);
                        pQueryFilter.WhereClause = lblFieldList.Text + "='" + txbValue.Text + "'";
                        IFeatureCursor pFeatureCursor = pFeatureLayer.FeatureClass.Search(pQueryFilter, false);
                        IFeature pFeature = pFeatureCursor.NextFeature();
                        while (pFeature != null)
                        {
                            double mapX, mapY;
                            mapX = (pFeature.Extent.XMax + pFeature.Extent.XMin) / 2;
                            mapY = (pFeature.Extent.YMax + pFeature.Extent.YMin) / 2;
                            IPoint pPoint = new PointClass();
                            pPoint.PutCoords(mapX, mapY);
                            IPictureMarkerSymbol pPictureMarkerSymbol = new PictureMarkerSymbolClass();
                            pPictureMarkerSymbol.Size = 20;
                            pPictureMarkerSymbol.CreateMarkerSymbolFromFile(esriIPictureType.esriIPictureBitmap, "E:\\资料文档\\GIS Demo1\\image\\TPieceOptDN1.bmp");
                            IMarkerElement pMarkerElement = new MarkerElementClass();
                            pMarkerElement.Symbol = pPictureMarkerSymbol as IMarkerSymbol;
                            IElement pElement = (IElement)pMarkerElement;
                            pElement.Geometry = pPoint;
                            //pMapControl.CenterAt(pPoint);
                            pGraphicsContainer.AddElement(pElement, 0);
                            pMapControl.FlashShape(pFeature.Shape, 3, 500, null);
                            //pMap.SelectFeature(pFeatureLayer, pFeature);
                            pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
                            pFeature = pFeatureCursor.NextFeature();
                        }
                    }
                    else
                    {
                        IFields pFields = pFeatureLayer.FeatureClass.Fields;
                        IField pField = pFields.get_Field(iFieldIndex);
                        pQueryFilter.WhereClause = lblFieldList.Text + "='" + txbValue.Text + "'";
                        IFeatureCursor pFeatureCursor = pFeatureLayer.FeatureClass.Search(pQueryFilter, false);
                        IFeature pFeature = pFeatureCursor.NextFeature();
                        while (pFeature != null)
                        {
                            pMapControl.FlashShape(pFeature.Shape, 3, 500, null);
                            //pMapControl.CenterAt(pPoint);
                            pMap.SelectFeature(pFeatureLayer, pFeature);
                            pFeature = pFeatureCursor.NextFeature();
                        }
                    }
                }
            }
            pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
        }

        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void btnClear_Click(object sender, EventArgs e)
        {
            IMap pMap = pMapControl.Map;
            IActiveView pActiveView = (IActiveView)pMap;
            IGraphicsContainer pGraphicsContainer = (IGraphicsContainer)pActiveView;
            pGraphicsContainer.DeleteAllElements();
            pMap.ClearSelection();
            pActiveView.Refresh();
        }
    }
}