topic Re: Help with IBasicGeoprocessor.Merge in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/help-with-ibasicgeoprocessor-merge/m-p/467167#M12682 <HTML><HEAD></HEAD><BODY><SPAN>ok I think I know why my field names are changing... the original featureclasses (that are being merged) have field names that are longer than 8 characters and dbf flat files only support up to 8 character field names....&nbsp; so is it possible to rename the ITable fields to something shorter?</SPAN></BODY></HTML> Mon, 21 May 2012 22:09:39 GMT DerekLoi 2012-05-21T22:09:39Z Help with IBasicGeoprocessor.Merge https://community.esri.com/t5/arcobjects-sdk-questions/help-with-ibasicgeoprocessor-merge/m-p/467166#M12681 <HTML><HEAD></HEAD><BODY><SPAN>I have managed to merge all the layers (with the same table attributes) into one single shapefile.&nbsp; However, the table structure is not the same as the original.&nbsp; For instance, my layers in the map control have fields named "Contact", "Address", "Location", "Phone" and the merged shapefile has a table with fields: "field_1", "field_2", "field_3", etc</SPAN><BR /><SPAN>Worse, there isn't even any data in any of the fields...</SPAN><BR /><SPAN>What am I doing wrong?</SPAN><BR /><BR /><PRE class="plain" name="code"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ITable inputTable = null;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Create a feature class name for the output shapefile and open the output's workspace &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IWorkspaceName pWorkspaceName = new WorkspaceNameClass(); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pWorkspaceName.WorkspaceFactoryProgID = "esriCore.ShapeFileWorkspaceFactory.1"; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pWorkspaceName.PathName = @"C:\Temp"; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // define the temp output featureclass name &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IFeatureClassName pFeatClassName = new FeatureClassNameClass(); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pFeatClassName.FeatureType = esriFeatureType.esriFTSimple; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pFeatClassName.ShapeFieldName = "Shape"; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pFeatClassName.ShapeType = esriGeometryType.esriGeometryPolygon; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IDatasetName pDatasetName = (IDatasetName)pFeatClassName; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pDatasetName.Name = "Merge_Result"; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pDatasetName.WorkspaceName = pWorkspaceName; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IArray featArray = new ArrayClass(); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ILayer pLayer; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for (int i = 0; i &lt; axMapControl1.LayerCount; i++) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pLayer = (ILayer)axMapControl1.get_Layer(i);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inputTable = (ITable)pLayer; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; featArray.Add(inputTable); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // perform the merge &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IBasicGeoprocessor pBGP = new BasicGeoprocessorClass(); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; try &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IFeatureClass pOutFeatureClass = pBGP.Merge(featArray, inputTable, pFeatClassName); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; catch (Exception ex) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Console.WriteLine(ex.Message); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } </PRE><DIV style="display:none;"> </DIV></BODY></HTML> Mon, 21 May 2012 15:54:29 GMT https://community.esri.com/t5/arcobjects-sdk-questions/help-with-ibasicgeoprocessor-merge/m-p/467166#M12681 DerekLoi 2012-05-21T15:54:29Z Re: Help with IBasicGeoprocessor.Merge https://community.esri.com/t5/arcobjects-sdk-questions/help-with-ibasicgeoprocessor-merge/m-p/467167#M12682 <HTML><HEAD></HEAD><BODY><SPAN>ok I think I know why my field names are changing... the original featureclasses (that are being merged) have field names that are longer than 8 characters and dbf flat files only support up to 8 character field names....&nbsp; so is it possible to rename the ITable fields to something shorter?</SPAN></BODY></HTML> Mon, 21 May 2012 22:09:39 GMT https://community.esri.com/t5/arcobjects-sdk-questions/help-with-ibasicgeoprocessor-merge/m-p/467167#M12682 DerekLoi 2012-05-21T22:09:39Z