如何读取属性块？

• 回答：

                  MxDrawUtility mxUtility = new MxDrawUtility();
  
                  MxDrawPoint getPt;
                  MxDrawEntity ent = mxUtility.GetEntity(out getPt, "\n 选择块引用实体:");
                  if (ent == null)
                  {
                      return;
                  }
  
                  if (ent is MxDrawBlockReference)
                  {
                      MxDrawBlockReference blkRef = (MxDrawBlockReference)ent;
                      // 读取块名。
  
                      mxUtility.Prompt("\n Name" +  blkRef.GetBlockName());
  
                      for (int j = 0; j < blkRef.AttributeCount; j++)
                      {
                          MxDrawAttribute attrib = blkRef.AttributeItem(j);
                          mxUtility.Prompt("\n Tag: " + attrib.Tag + "  Text:" + attrib.TextString
                              
                              );
                      }
  
                      // 从块记录中，得到提示文字.
                      MxDrawBlockTableRecord blkRec = blkRef.BlockTableRecord;
  
                      MxDrawBlockTableRecordIterator iter = blkRec.NewIterator();
  
                      for (; !iter.Done(); iter.Step(true, false))
                      {
                          MxDrawEntity tmpEnt = iter.GetEntity();
  
                          if (tmpEnt is MxDrawAttributeDefinition)
                          {
                              MxDrawAttributeDefinition attribDef = (MxDrawAttributeDefinition)(tmpEnt);
  
                              mxUtility.Prompt("\n Tag: " + attribDef.Tag + " Tip:" + attribDef.Prompt
                            
                             );
  
                          }
  
                      }
  
  
  
                  }
                  else
                  {
                      MessageBox.Show("选择块引用实体");
                  }