C#+AE不同shp文件要素的复制

C#+AE做的一个DEMO，实现了在不同shp文件下要素的复制，其中shp文件要素属性格式相同。

开发环境：VS2010+ArcObject10.1

功能介绍：首先，窗体加载的时候，加载数据AsiaCities_new.shp和AsiaCities_old.shp。

　　　　　点击按钮，执行复制的过程。即筛选AsiaCities_old.shp中POPULATION = 0的所有要素，然后复制到AsiaCities_new.shp中，复制之前先判断复制后　　　　　　的文件中是否已存在复制的要素，如已存在则不复制，如不存在则复制。

代码如下：

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

namespace Test_FieldsQuery
{
    public partial class Form1 : Form
    {
        ILayer pLayer1;
        IFeatureLayer pFeatureLayer1;
        IFeatureClass pFeatureClass1;

        ILayer pLayer;
        IFeatureLayer pFeatureLayer;
        IFeatureClass pFeatureClass;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            axMapControl1.AddShapeFile("数据\", "AsiaCities_new.shp");
            axMapControl1.AddShapeFile("数据\", "AsiaCities_old.shp");

            pLayer1 = axMapControl1.get_Layer(1);
            pFeatureLayer1 = pLayer1 as IFeatureLayer;
            pFeatureClass1 = pFeatureLayer1.FeatureClass;

            pLayer = axMapControl1.get_Layer(0);
            pFeatureLayer = pLayer as IFeatureLayer;
            pFeatureClass = pFeatureLayer.FeatureClass;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            IQueryFilter pQueryFilter1 = new QueryFilterClass();
            pQueryFilter1.WhereClause = "POPULATION = 0";

            IFeatureCursor pFeatureCursor1 = pFeatureClass1.Search(pQueryFilter1, false);
            IFeature pFeature1 = pFeatureCursor1.NextFeature();



            IQueryFilter pQueryFilter = new QueryFilterClass();
            pQueryFilter.WhereClause = "POPULATION = 0";

            IFeatureCursor pFeatureCursor = pFeatureClass.Search(pQueryFilter, false);
            IFeature pFeature = pFeatureCursor.NextFeature();

            int i=0,j=0; //判断全部或者部分要素复制

            while (pFeature != null)
            {
                bool flag0 = false;

                ITable pTable=pFeatureClass as ITable;
                IRow pRow = pTable.GetRow(pFeature.OID);

                while (pFeature1 != null)
                {
                    ITable pTable1 = pFeatureClass1 as ITable;
                    IRow pRow1 = pTable1.GetRow(pFeature1.OID);

                    string a0 = pRow.get_Value(1).ToString();
                    string b0 = pRow.get_Value(2).ToString();
                    string c0 = pRow.get_Value(3).ToString();
                    string d0 = pRow.get_Value(4).ToString();
                    string e0 = pRow.get_Value(5).ToString();
                    string f0 = pRow.get_Value(6).ToString();
                    
                    string a1 = pRow1.get_Value(1).ToString();
                    string b1 = pRow1.get_Value(2).ToString();
                    string c1 = pRow1.get_Value(3).ToString();
                    string d1 = pRow1.get_Value(4).ToString();
                    string e1 = pRow1.get_Value(5).ToString();
                    string f1 = pRow1.get_Value(6).ToString();

                    if (a0 == a1 && b0 == b1 && c0 == c1 && d0 == d1 && e0 == e1 && f0 == f1)
                    {
                        pFeature1 = pFeatureCursor1.NextFeature();
                        flag0 = true;
                        i++;
                        break;
                    }
                    pFeature1 = pFeatureCursor1.NextFeature();
                }
                if (flag0 == true)
                {
                    pFeature = pFeatureCursor.NextFeature();
                    continue;
                }
                if (AddFeatureToFeatureClass(pFeatureClass1, pFeature))
                {
                    j++;
                }
                pFeature = pFeatureCursor.NextFeature();
            }
            if (i > 0 && j > 0)
                MessageBox.Show("部分要素已复制，其中部分要素重复！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
            if (i > 0 && j == 0)
                MessageBox.Show("没有复制任何要素，复制的要素均已存在！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
            if (i == 0 && j > 0)
                MessageBox.Show("所有要素均已复制！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
        }

        private bool AddFeatureToFeatureClass(IFeatureClass pFeatureClass, IFeature pFeature)
        {
            IFeatureCursor pFeatureCursor = pFeatureClass.Insert(true);
            IFeatureBuffer pFeatureBuffer = pFeatureClass.CreateFeatureBuffer();
            IFields pFields = pFeatureClass.Fields;
            for (int i = 1; i <= pFields.FieldCount - 1; i++)
            {
                IField pField = pFields.get_Field(i);
                if (pField.Type == esriFieldType.esriFieldTypeGeometry)
                {
                    pFeatureBuffer.set_Value(i, pFeature.Shape);
                }
                else
                {
                    switch (pField.Type)
                    { 
                        case esriFieldType.esriFieldTypeInteger:
                            pFeatureBuffer.set_Value(i, Convert.ToInt32(pFeature.get_Value(i)));
                            break;
                        case esriFieldType.esriFieldTypeDouble:
                            pFeatureBuffer.set_Value(i, Convert.ToDouble(pFeature.get_Value(i)));
                            break;
                        case esriFieldType.esriFieldTypeString:
                            pFeatureBuffer.set_Value(i, Convert.ToString(pFeature.get_Value(i)));
                            break;
                        default:
                            break;
                    }
                }
            }
            pFeatureCursor.InsertFeature(pFeatureBuffer);
            return true;
        }
    }
}

DEMO下载地址：Test_FieldsQuery.rar