用过SDE连接，添加数据集Dataset

第一步：添加EngineGeoDB许可初始化

IAoInitialize aoInitialize = new AoInitialize();
aoInitialize.Initialize(esriLicenseProductCode.esriLicenseProductCodeEngineGeoDB);

如果不加，则会报错“The application is not licensed to create or modify schema for this type of data”

第二步：连接sde数据库

var factoryType = Type.GetTypeFromProgID("esriDataSourcesGDB.SdeWorkspaceFactory");
var workspaceFactory = (SdeWorkspaceFactory) Activator.CreateInstance(factoryType);

IPropertySet propertySet = new PropertySet();
propertySet.SetProperty("Server", "192.168.1.188");
propertySet.SetProperty("Instance", "esri_sde");
propertySet.SetProperty("User", "sde");
propertySet.SetProperty("Password", "sde");
propertySet.SetProperty("Database", "sdedb");
propertySet.SetProperty("version", "sde.default");

IWorkspace workspace = workspaceFactory.Open(propertySet, 0);
var featureWorkspace = (IFeatureWorkspace) workspace;

参数的具体设置，详细见 http://blog.csdn.net/zy332719794/article/details/8961390

这样我们就获取了工作空间，现在可以增加Dataset了

第三步：创建FeatureDateset

// 创建坐标系参考
ISpatialReferenceFactory sf = new SpatialReferenceEnvironment();
var geographicCoordinate = sf.CreateGeographicCoordinateSystem(
    (int)esriSRGeoCSType.esriSRGeoCS_Beijing1954);
featureWorkspace.CreateFeatureDataset("NewDataset2", geographicCoordinate);

这样我们的一个名为“NewDataset2”的Dataset就创建好了。