2. arcengine拓扑：实现图层合并(c#)

直接上demo

using ESRI.ArcGIS.Geoprocessor;
using ESRI.ArcGIS.Geoprocessing;
using ESRI.ArcGIS.DataManagementTools;

 /// <summary>
        /// 图层合并
        /// </summary>
        /// <param name="inputPaths"></param>
        /// <param name="outputPath"></param>
        /// <returns></returns>
        public static IGeoProcessorResult MergeFeatureClass(string inputPaths, string outputPath)
        {
            try
            {
                Merge pMerge = new Merge(inputPaths, outputPath);
                Geoprocessor GP = new Geoprocessor();
                GP.OverwriteOutput = true;
                GP.TemporaryMapLayers = false;
                return GP.Execute(pMerge, null) as IGeoProcessorResult;
            }
            catch
            {
                return null;
            }
        }