AE ShapeFile文件的读取和事务的控制对图层的插入

1、对shape file文件的读取，先窗口工作空间，然后从工作空间打开featureclass，最后创建图层置入featureclass，新建的图层就可以加入到map中了。

/// <summary>
        /// 创建一个feature layer
        /// </summary>
        /// <param name="workspacePath"></param>
        /// <param name="className"></param>
        /// <returns></returns>
        public IFeatureLayer CreateShapeFileLayerForShapeFile(string workspacePath,string className)
        {
            IFeatureWorkspace featureWorkspace = OpenFeatureWorkspaceForShapeFile(workspacePath);
            if (featureWorkspace == null) return null;
            IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(className);
            if (featureClass == null) return null;
            IFeatureLayer flayer = new FeatureLayerClass();
            flayer.Name = className;
            flayer.FeatureClass = featureClass;
            return flayer;
        }
        /// <summary>
        /// 打开一个feature workspace
        /// </summary>
        /// <param name="workspacePath"></param>
        /// <returns></returns>
        public IFeatureWorkspace OpenFeatureWorkspaceForShapeFile(string workspacePath)
        {
            IPropertySet properties = new PropertySetClass();
            properties.SetProperty("DATABASE", workspacePath);
            IWorkspaceFactory2 workspaceFactory = new ShapefileWorkspaceFactoryClass();
            IFeatureWorkspace featureWorkspace = workspaceFactory.Open(properties, 0) as IFeatureWorkspace;
            return featureWorkspace;
        }

2、 事务控制，使用iworkspaceedit，获取workspaceedit时需要注意，要保证和你编辑的图层的工作空间一致，一个map中会有多个工作空间，获取dataset时注意，不要使用fclass.featuredataset,因为不是所有图层都在数据集中，一般shape文件的featureclass获取不到featuredataset。

if (flayer == null)
                return null;
            // 获取featureworkspace
            IFeatureClass fclass = flayer.FeatureClass;
            if (fclass == null)
                return null;
            IDataset dataset = fclass as IDataset;
            if (dataset == null)
                return null;
            IWorkspaceEdit wsEditor = dataset.Workspace as IWorkspaceEdit;

            wsEdit.StartEditing(false);// true代表开启操作事务控制，允许使用redo和undo
// 判定必要先决条件,如果不满足则不插入
            if(fclass==null || geometry==null)
                return false;
            if(fclass.ShapeType!=geometry.GeometryType)
                return false;
            // 创建feature
            IFeature feature = fclass.CreateFeature();
            IFields fields = feature.Fields;
            // 向feature插入图形
            feature.Shape = geometry;
            if (values != null)
            {
                // 如果传入值对,则对feature直接赋值
                for (int i = 0; i < values.Count; i++)
                {
                    int fieldIndex = fields.FindField(values.ElementAt(i).Key);
                    if (fieldIndex == -1)
                        continue;
                    // 验证后插入值
                    if(fields.get_Field(fieldIndex).CheckValue(values.ElementAt(i).Value))
                        feature.set_Value(fieldIndex, values.ElementAt(i).Value);
                }
            }
            // 保存退出
            feature.Store();
                  wsEdit.StopEditing(true);//true代表保持操作

结束！！