本文主要对数据导入等里 常用的不同格式数据创建、转换等 进行代码示例。主要用到IFeatureDataConverter.ConvertFeatureClass方法。
代码如下，难度不大，只是个技巧问题：
函数：
private void ConvertFeaCls(IWorkspace workspaceSource, IWorkspace workspaceTar, stringsSorceFeaClsName, string sTarFeaClsName, string sFeaDTName)
{
IFeatureClass feaCls = (workspaceSource asIFeatureWorkspace).OpenFeatureClass(sSorceFeaClsName);
String shapeFieldName = feaCls.ShapeFieldName;
int shapeFieldIndex = feaCls.FindField(shapeFieldName);
IField shapeField = feaCls.Fields.get_Field(shapeFieldIndex);
IGeometryDef geometryDef = shapeField.GeometryDef;
//create source workspace name
IDataset sourceWorkspaceDataset = (IDataset)workspaceSource;
IWorkspaceName sourceWorkspaceName = (IWorkspaceName)sourceWorkspaceDataset.FullName;
//create source dataset name
IFeatureClassName sourceFeatureClassName = new FeatureClassNameClass();
IDatasetName sourceDatasetName = (IDatasetName)sourceFeatureClassName;
sourceDatasetName.WorkspaceName = sourceWorkspaceName;
sourceDatasetName.Name = sSorceFeaClsName;
//create target workspace name
IDataset tarWorkspaceDataset = (IDataset)workspaceTar;
IWorkspaceName tarWorkspaceName = (IWorkspaceName)tarWorkspaceDataset.FullName;
//create target dataset name
IFeatureClassName tarFeatureClassName = new FeatureClassNameClass();
IDatasetName tarDatasetName = (IDatasetName)tarFeatureClassName;
tarDatasetName.WorkspaceName = tarWorkspaceName;
tarDatasetName.Name = sTarFeaClsName;
IFeatureDatasetName tarFeatureDatasetName = new FeatureDatasetNameClass();
(tarFeatureDatasetName as IDatasetName).WorkspaceName = tarWorkspaceName;
(tarFeatureDatasetName as IDatasetName).Name = sFeaDTName;
if (string.IsNullOrEmpty(sFeaDTName))
{
tarFeatureDatasetName = null;
}
IFeatureDataConverter featureDataConverter = new FeatureDataConverterClass();
featureDataConverter.ConvertFeatureClass(sourceFeatureClassName, null, tarFeatureDatasetName, tarFeatureClassName, geometryDef, feaCls.Fields, "", , ); // Check for errors.
}
调用：
IWorkspaceFactory2 workspaceFactory = new ShapefileWorkspaceFactoryClass() asIWorkspaceFactory2;
IWorkspace workspace = workspaceFactory.OpenFromFile(@"E:\jhl", );
IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)workspace;
IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(Functions.g_ROAD);
IWorkspace workspace2 = workspaceFactory.OpenFromFile(@"E:\", );
DeleteShapeFileIFExist(@"E:\", "test6");
ConvertFeaCls(workspace, workspace2, Functions.g_ROAD, "test6",string.Empty);