设计界面

创建类

代码如下

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using ESRI.ArcGIS.Controls;

using System.Data;

using ESRI.ArcGIS.Carto;

using ESRI.ArcGIS.Geodatabase;

using ESRI.ArcGIS.Geometry;



namespace test

{

   public class DataHelper

    {

        #region 读取mapControl属性表

        public static DataTable GetAttribute(AxMapControl axMapControl)

        {

            int layerCount = axMapControl.Map.LayerCount;



           // IFeature pFeature;

            string fieldName=string.Empty;

            int fieldCount;

            bool firstThroght=true;

            DataTable dataTable = new DataTable();

            //循环图层得到每一层的数据

            for (int l = 0; l < layerCount; l++)

            {

                IFeatureLayer pFeatureLayer = axMapControl.Map.get_Layer(l) as IFeatureLayer;

                IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;

                fieldCount = pFeatureClass.Fields.FieldCount;

                int featureCount = pFeatureClass.FeatureCount(new QueryFilterClass());

                if (firstThroght)

                {

                    for (int i = 0; i < fieldCount; i++)

                    {

                        string fieldHeadName = pFeatureClass.Fields.get_Field(i).AliasName;

                        dataTable.Columns.Add(fieldHeadName);



                    }

                    firstThroght = false;

                }

                //判断feature的类型

                int indexofShape = pFeatureClass.FindField("Shape");

                ESRI.ArcGIS.Geometry.esriGeometryType pFeatureClassShapeType = pFeatureClass.ShapeType;

                for (int i = 0; i < featureCount; i++)

                {

                    DataRow dataRow = dataTable.NewRow();

                    for (int j = 0; j < fieldCount; j++)

                    {

                        if (j == indexofShape)

                        {

                            //Geometroy.shapetype转换

                            switch (pFeatureClassShapeType)

                            {

                                case esriGeometryType.esriGeometryPoint:

                                    fieldName = "Point";

                                    break;

                                case esriGeometryType.esriGeometryPolyline:

                                    fieldName = "Polyline";

                                    break;

                                case esriGeometryType.esriGeometryPolygon:

                                    fieldName = "Polygon";

                                    break;

                                default:

                                    break;

                            }

                            // fieldName = pFeatureClass.GetFeature(i).get_Value(j).ToString();

                            //dataTable.Columns.Add(fieldName);



                            dataRow[j] = fieldName;

                        }

                        else

                        {

                            //添加非shape字段到表中

                            fieldName = pFeatureClass.GetFeature(i).get_Value(j).ToString();

                            //dataTable.Columns.Add(fieldName);



                            dataRow[j] = fieldName;

                        }



                        //dataTable[i][j] = fieldName;

                    }

                    dataTable.Rows.Add(dataRow);



                }

            }

            return dataTable;

        }

        #endregion

    }

}