将图层导入SDE
将图层导入ＳＤＥ有两种情况，一种是直接导入到ＳＤＥ的根目录下，一种是ＳＤＥ中用户建立了要素集(Dataset)，然后往某个要素集中导入数据
第一种情况：直接往ＳＤＥ根目录下导入图层：
[c-sharp] view plaincopyprint? bool impLayerByName(IName lName,IWorkspace inWorkspace,IWorkspace outWorkspace){try{//Open input Featureclass to get field definitions.IFeatureClass inFeatureClass = (IFeatureClass)lName.Open();IFeatureClassName inFeatureClassName = (IFeatureClassName)lName;// Set out dataset and feature class names.IFeatureClassName outFeatureClassName = new FeatureClassNameClass();IDatasetName outDatasetName = (IDatasetName)outFeatureClassName;IDataset outWorkspaceDataset = (IDataset)outWorkspace;IWorkspaceName outWorkspaceName = (IWorkspaceName)outWorkspaceDataset.FullName;outDatasetName.WorkspaceName = outWorkspaceName;//string outFullName = ((IDatasetName)lName).Name;//string outFileName = outFullName.Substring(outFullName.LastIndexOf(".") + 1);outDatasetName.Name = "SDE."+((IDatasetName)lName).Name;//Validate the field names.IFieldChecker fieldChecker = new FieldCheckerClass();IFields outFeatureClassFields;IFields inFeatureClassFields = inFeatureClass.Fields;IEnumFieldError enumFieldError;fieldChecker.InputWorkspace = inWorkspace;fieldChecker.ValidateWorkspace = outWorkspace;// Validate the fields.fieldChecker.Validate(inFeatureClassFields,out enumFieldError,outoutFeatureClassFields);// Set up the geometry definition.IField geometryField;geometryField = outFeatureClassFields.get_Field(outFeatureClassFields.FindField(inFeatureClass.ShapeFieldName));// Get the geometry field's geometry definition.IGeometryDef geometryDef = geometryField.GeometryDef;//Set up the IQueryFilter to convert all the features by leaving a blank WhereClauseQueryFilter qf = new QueryFilterClass();qf.WhereClause = "";//Load the feature classIFeatureDataConverter fctofc = new FeatureDataConverterClass();IEnumInvalidObject enumErrors = fctofc.ConvertFeatureClass(inFeatureClassName,qf,null,outFeatureClassName,geometryDef,outFeatureClassFields,"",1000,0);return true;}catch (Exception ex){MessageBox.Show(ex.Message);return false;}}
其中，lName是源图层的IName，inWorkspace是源图层所在的工作空间，outWorkspace是要导出到的工作空间，这段代码默认将导出后的图层命名为与源图层一样
第二种情况：往ＳＤＥ中某个要素集导入图层
[c-sharp] view plaincopyprint? bool impLayerByNameIntoDataset(IName lName,IWorkspace inWorkspace,IFeatureDataset featureDataset){try{//IFeatureClassDescription fcDesc = new FeatureClassDescriptionClass();//IObjectClassDescription ocDesc = (IObjectClassDescription)fcDesc;//Open input Featureclass to get field definitions.IFeatureClass inFeatureClass = (IFeatureClass)lName.Open();IFeatureClassName inFeatureClassName = (IFeatureClassName)lName;// Set out dataset and feature class names.IFeatureClassName outFeatureClassName = new FeatureClassNameClass();IDatasetName outDatasetName = (IDatasetName)outFeatureClassName;IDataset outWorkspaceDataset = (IDataset)featureDataset.Workspace;IWorkspaceName outWorkspaceName = (IWorkspaceName)outWorkspaceDataset.FullName;outDatasetName.WorkspaceName = outWorkspaceName;outDatasetName.Name = "SDE." + ((IDatasetName)lName).Name;//Validate the field names.IFieldChecker fieldChecker = new FieldCheckerClass();IFields outFeatureClassFields;IFields inFeatureClassFields = inFeatureClass.Fields;IEnumFieldError enumFieldError;fieldChecker.InputWorkspace = inWorkspace;fieldChecker.ValidateWorkspace = featureDataset.Workspace;// Validate the fields.fieldChecker.Validate(inFeatureClassFields,out enumFieldError,outoutFeatureClassFields);//featureDataset.CreateFeatureClass("SDE." + ((IDatasetName)lName).Name,outFeatureClassFields,ocDesc.InstanceCLSID,ocDesc.ClassExtensionCLSID,esriFeatureType.esriFTSimple,fcDesc.ShapeFieldName,"");// Set up the geometry definition.IField geometryField;geometryField = outFeatureClassFields.get_Field(outFeatureClassFields.FindField(inFeatureClass.ShapeFieldName));// Get the geometry field's geometry definition.IGeometryDef geometryDef = geometryField.GeometryDef;//Set up the IQueryFilter to convert all the features by leaving a blank WhereClauseIQueryFilter qf = new QueryFilterClass();qf.WhereClause = "";//Load the feature classIFeatureDataConverter fctofc = new FeatureDataConverterClass();IEnumInvalidObject enumErrors = fctofc.ConvertFeatureClass(inFeatureClassName,qf,(IFeatureDatasetName)featureDataset.FullName,outFeatureClassName,geometryDef,outFeatureClassFields,"",1000,0);return true;}catch (Exception ex){MessageBox.Show(ex.Message);return false;}}
其中，lName是源图层的IName，inWorkspace是源图层所在的工作空间，featureDataset是目标数据集,这段代码默认将导出后的图层命名为与源图层一样
附：获取SDE中数据集(Dataset)的方法：
[c-sharp] view plaincopyprint? //在SDE里查找名称为datasetName的DatasetIFeatureDataset outSet = null;IEnumDatasetName idNames = outSpace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);IDatasetName idNames.Reset();fNameBase = idNames.Next();while (fNameBase != null){if(fNameBase.Name == datasetName) outSet = (IFeatureDataset)((IName)fNameBase).Open();fNameBase = idNames.Next();}
其中outSpace为已经打开的SDE工作空间
转载于:https://www.cnblogs.com/cuizhiyuan/p/4599606.html
