C#+AE要素的操作，添加、更新和删除要素

开发环境：VS2010+ArcObject10.1
功能介绍：C#+AE对要素的操作，包括添加要素，查找特定的要素并更新要素、删除要素。
  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.Linq;
  7 using System.Text;
  8 using System.Windows.Forms;
  9 using ESRI.ArcGIS.Carto;
 10 using ESRI.ArcGIS.Geodatabase;
 11 using ESRI.ArcGIS.Geometry;
 12 using ESRI.ArcGIS.Display;
 13 
 14 namespace Test_FieldsQuery
 15 {
 16     public partial class Form1 : Form
 17     {
 18         ILayer pLayer1;
 19         IFeatureLayer pFeatureLayer1;
 20         IFeatureClass pFeatureClass1;
 21 
 22         ILayer pLayer;
 23         IFeatureLayer pFeatureLayer;
 24         IFeatureClass pFeatureClass;
 25 
 26         public Form1()
 27         {
 28             InitializeComponent();
 29         }
 30 
 31         private void Form1_Load(object sender, EventArgs e)
 32         {
 33             axMapControl1.AddShapeFile("数据\", "AsiaCities_new.shp");
 34             axMapControl1.AddShapeFile("数据\", "AsiaCities_old.shp");
 35 
 36             pLayer1 = axMapControl1.get_Layer(1);
 37             pFeatureLayer1 = pLayer1 as IFeatureLayer;
 38             pFeatureClass1 = pFeatureLayer1.FeatureClass;
 39 
 40             pLayer = axMapControl1.get_Layer(0);
 41             pFeatureLayer = pLayer as IFeatureLayer;
 42             pFeatureClass = pFeatureLayer.FeatureClass;
 43         }
 44 
 45           #region 添加、更新和删除要素对象的操作
 46         private void button4_Click(object sender, EventArgs e)
 47         {
 48             AddRow(pFeatureClass1);
 49         }
 50 
 51         private void button2_Click(object sender, EventArgs e)
 52         {
 53             IQueryFilter pQueryFilter = new QueryFilterClass();
 54             pQueryFilter.WhereClause = ""FIRST_CONT" = 'esri'";
 55             IFeatureCursor pFeatureCursor = pFeatureClass1.Search(pQueryFilter, false);
 56             IFeature pFeature = pFeatureCursor.NextFeature();
 57 
 58             UpdateRow(pFeatureClass1, pFeature);
 59         }
 60 
 61         private void button3_Click(object sender, EventArgs e)
 62         {
 63             IQueryFilter pQueryFilter = new QueryFilterClass();
 64             pQueryFilter.WhereClause = ""FIRST_CONT" = 'esriChina'";
 65             IFeatureCursor pFeatureCursor = pFeatureClass1.Search(pQueryFilter, false);
 66             IFeature pFeature = pFeatureCursor.NextFeature();
 67 
 68             DeleteRow(pFeatureClass1, pFeature);
 69         }
 70         /// <summary>
 71         /// 添加要素
 72         /// </summary>
 73         /// <param name="pFeatureClass">要素类</param>
 74         private void AddRow(IFeatureClass pFeatureClass)
 75         {
 76             ITable pTable = pFeatureClass as ITable;
 77             IRow pRow;
 78             int i = pTable.FindField("FIRST_CONT");
 79             //添加记录
 80             pRow = pTable.CreateRow();
 81             pRow.set_Value(i, "esri");//设置属性值
 82             pRow.Store();
 83         }
 84         /// <summary>
 85         /// 更新要素
 86         /// </summary>
 87         /// <param name="pFeatureClass">要素类</param>
 88         /// <param name="pFeature">要更新的要素</param>
 89         private void UpdateRow(IFeatureClass pFeatureClass, IFeature pFeature)
 90         {
 91             ITable pTable = pFeatureClass as ITable;
 92             IRow pRow;
 93             int i = pTable.FindField("FIRST_CONT");
 94             //更新记录
 95             pRow = pTable.GetRow(pFeature.OID);
 96             pRow.set_Value(i, "esriChina");
 97             pRow.Store();
 98         }
 99         /// <summary>
100         /// 删除要素
101         /// </summary>
102         /// <param name="pFeatureClass">要素类</param>
103         /// <param name="pFeature">要删除的要素</param>
104         private void DeleteRow(IFeatureClass pFeatureClass, IFeature pFeature)
105         {
106             ITable pTable = pFeatureClass as ITable;
107             IRow pRow;
108             //删除记录
109             pRow = pTable.GetRow(pFeature.OID);
110             pRow.Delete();
111         } 
112         #endregion
113     }
114 }