topic Com exception in RasterCalcUniqueValues in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/com-exception-in-rastercalcuniquevalues/m-p/563478#M15186 <HTML><HEAD></HEAD><BODY><SPAN>Good afternoon. When I try to get UniqueValues from raster, I have sometimes Com exception:</SPAN><BR /><SPAN>HRESULT: 0x8004101F</SPAN><BR /><SPAN>? ESRI.ArcGIS.DataSourcesRaster.RasterCalcUniqueValu esClass.AddFromRaster(IRaster pRaster, Int32 iBand, IUniqueValues pUniqueValues)</SPAN><BR /><SPAN>code: </SPAN><BR /><BR /><SPAN>Type t = Type.GetTypeFromProgID("esriDataSourcesRaster.RasterWorkspaceFactory");</SPAN><BR /><SPAN>object obj = Activator.CreateInstance(t);</SPAN><BR /><SPAN>IWorkspaceFactory workspaceFactory =(IWorkspaceFactory) obj</SPAN><BR /><BR /><SPAN>IRasterWorkspace2 rasterWorkspace = null;</SPAN><BR /><SPAN>rasterWorkspace = (IRasterWorkspace2) workspaceFactory.OpenFromFile(rasterWorkspaceName, 0); </SPAN><BR /><BR /><SPAN>IRasterDataset2 rasterDataset = </SPAN><BR /><SPAN>(IRasterDataset2)rasterWorkspace.OpenRasterDataset (rasterDatasetName);</SPAN><BR /><BR /><SPAN>IRaster raster = rasterDataset.CreateDefaultRaster();</SPAN><BR /><BR /><SPAN>IUniqueValues uniqueValues = new UniqueValues();</SPAN><BR /><SPAN>IRasterCalcUniqueValues rasterCalcUniqueValues = new RasterCalcUniqueValues();</SPAN><BR /><BR /><SPAN>rasterCalcUniqueValues.AddFromRaster(raster, 0, uniqueValues);</SPAN><BR /><BR /><SPAN>if rasterDataset.CompressionType="none" all going well</SPAN><BR /><SPAN>else I have exception</SPAN><BR /><BR /><SPAN>Help me, please.</SPAN><BR /><SPAN>p.s:sorry for my bad English)</SPAN></BODY></HTML> Fri, 28 Jan 2011 02:25:15 GMT AndreyP 2011-01-28T02:25:15Z Com exception in RasterCalcUniqueValues https://community.esri.com/t5/arcobjects-sdk-questions/com-exception-in-rastercalcuniquevalues/m-p/563478#M15186 <HTML><HEAD></HEAD><BODY><SPAN>Good afternoon. When I try to get UniqueValues from raster, I have sometimes Com exception:</SPAN><BR /><SPAN>HRESULT: 0x8004101F</SPAN><BR /><SPAN>? ESRI.ArcGIS.DataSourcesRaster.RasterCalcUniqueValu esClass.AddFromRaster(IRaster pRaster, Int32 iBand, IUniqueValues pUniqueValues)</SPAN><BR /><SPAN>code: </SPAN><BR /><BR /><SPAN>Type t = Type.GetTypeFromProgID("esriDataSourcesRaster.RasterWorkspaceFactory");</SPAN><BR /><SPAN>object obj = Activator.CreateInstance(t);</SPAN><BR /><SPAN>IWorkspaceFactory workspaceFactory =(IWorkspaceFactory) obj</SPAN><BR /><BR /><SPAN>IRasterWorkspace2 rasterWorkspace = null;</SPAN><BR /><SPAN>rasterWorkspace = (IRasterWorkspace2) workspaceFactory.OpenFromFile(rasterWorkspaceName, 0); </SPAN><BR /><BR /><SPAN>IRasterDataset2 rasterDataset = </SPAN><BR /><SPAN>(IRasterDataset2)rasterWorkspace.OpenRasterDataset (rasterDatasetName);</SPAN><BR /><BR /><SPAN>IRaster raster = rasterDataset.CreateDefaultRaster();</SPAN><BR /><BR /><SPAN>IUniqueValues uniqueValues = new UniqueValues();</SPAN><BR /><SPAN>IRasterCalcUniqueValues rasterCalcUniqueValues = new RasterCalcUniqueValues();</SPAN><BR /><BR /><SPAN>rasterCalcUniqueValues.AddFromRaster(raster, 0, uniqueValues);</SPAN><BR /><BR /><SPAN>if rasterDataset.CompressionType="none" all going well</SPAN><BR /><SPAN>else I have exception</SPAN><BR /><BR /><SPAN>Help me, please.</SPAN><BR /><SPAN>p.s:sorry for my bad English)</SPAN></BODY></HTML> Fri, 28 Jan 2011 02:25:15 GMT https://community.esri.com/t5/arcobjects-sdk-questions/com-exception-in-rastercalcuniquevalues/m-p/563478#M15186 AndreyP 2011-01-28T02:25:15Z