i would like to appreciate the any one could help me to import the blocks using The SIMATIC SD format
for me export is working fine, but import the program blocks are not actaually imported in the TIA portal and i did not get any errors as well
beloe is the import code for the new Sd Format
private void ImportProgramBlockFromDocument(PlcSoftware plcSoftware)

{

    DocumentImportResult documentImportResultForBlocks = plcSoftware.BlockGroup.Blocks.

    ImportFromDocuments(new DirectoryInfo(@"D:\Project\Exported Files"),

    " LAD_Block", ImportDocumentOptions.Override);
 

    DocumentResultState documentResultState = documentImportResultForBlocks.State;

   
PlcBlockAssociation importedPlcBlocks = documentImportResultForBlocks. ImportedPlcBlocks;
 

    DocumentResultMessageComposition documentMessages = documentImportResultForBlocks.Messages;
 

    // DocumentResultMessageComposition contains list of DocumentResultMessage.
 

    DocumentResultMessage documentResultMessage = documentImportResultForBlocks.Messages[0].Message;

}

this code is not Performing any tasks or changes in TIA portal i do not get an error also, I wonder why is it not working for me 

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Split from Simple Sample and TIPs - STEP 7 - Import / export SIMATIC SD format for LAD blocks.