I'm new in Arcobject, and I have to convert a selected features to CAD drawing using just arcobjects and c#.the code below work good when i convert to a shapefile "ShapeFileWorkspaceFactory" but with the "CadWorkspaceFactory" it doesn't work.
any help will be greatly appreciated
public void featureToCad(){
IFeatureLayer fl = search_layer2(axMapControl1.Map, "parcelle") as IFeatureLayer;
IFeatureClass pFC;
IFeatureClassName pInFeatureClassName;
IDataset pDataset;
IDatasetName pInDsName;
IFeatureSelection pFSel;
ISelectionSet pSelSet;
IFeatureClassName pFeatureClassName;
IDatasetName pOutDatasetName;
IWorkspaceName pWorkspaceName;
// *******************************
// Get the featureclass from the layer
// *******************************
pFC = fl.FeatureClass;
// ***********************************************
// Get the Featureclassname from the featureclass
// ***********************************************
pDataset = pFC as IDataset;
pInFeatureClassName = (IFeatureClassName)pDataset.FullName;
pInDsName = (IDatasetName)pInFeatureClassName;
// ***************************
// Get the selected features
// ***************************
pFSel = fl as IFeatureSelection;
pSelSet = pFSel.SelectionSet;
IWorkspace pScratchWorkspace;
IScratchWorkspaceFactory pScratchWorkspaceFactory;
pScratchWorkspaceFactory = new ScratchWorkspaceFactory();
pScratchWorkspace = pScratchWorkspaceFactory.DefaultScratchWorkspace;
// ***************************************************
// Define the output featureclass
// give it the name of the input feature class + exp
// ***************************************************
pFeatureClassName = (IFeatureClassName)new FeatureClassName();
pOutDatasetName = (IDatasetName)pFeatureClassName;
pOutDatasetName.Name = (pFC.AliasName + "exp");
pWorkspaceName = (IWorkspaceName)new WorkspaceName();
pWorkspaceName.PathName = "D:\\";
pWorkspaceName.WorkspaceFactoryProgID = "esriDataSourcesFile.CadWorkspaceFactory";//it works with "ShapeFileWorkspaceFacto"
pOutDatasetName.WorkspaceName = pWorkspaceName;
// *************************************************************
// Give the output shapefile the same props as the input dataset
// *************************************************************
pFeatureClassName.FeatureType = pFC.FeatureType;
pFeatureClassName.ShapeType = pFC.ShapeType;
pFeatureClassName.ShapeFieldName = pFC.ShapeFieldName;
// *************************************************************
// Export selected features
// *************************************************************
pExportOp = new ExportOperation();
pExportOp.ExportFeatureClass(pInDsName, null, pSelSet, null,pFeatureClassName,0);
