![]() ![]() The data residing in a data store or database is retrieved through the data provider. The object model can be pictorially described as − ADO.Net Object ModelĪDO.Net object model is nothing but the structured process flow through various components. Net applications for retrieving, accessing and updating data. Microsoft ActiveX Data Objects.Net (ADO.Net) is a model, a part of the. Sorry for my stream-of-consciousness thoughts maybe there's something helpful in there.Applications communicate with a database, firstly, to retrieve the data stored there and present it in a user-friendly way, and secondly, to update the database by inserting, modifying and deleting data. So you're probably going to have a hard time mixing these two schema files unless you combine them on your own into a new xsd file, which is likely a bad idea. It seems that blows up any strong typing, because it can take any element. Maybe you have to do something similar with the. Looking here it seems that you have to create an xml schema instance (xsi) which references the different schemas you are using in a particular xml file. I think Groundspeak only extends the elements with information. So, looking at the main gpx schema file, obviously the elements are where any extension points go. You wouldn't be able to use it as a document schema because it's insufficient by itself (this is probably why you're getting Nothing or Null values). Looking at the Groundspeak xsd, it just represents a snippet of a document, not the entire thing. It's particularly hard without an actual Groundspeak gpx file to look at. Looking at the two files you linked, I had a hard time figuring out how they fit together. Okay, first let me qualify this by saying that I'm just learning XSD, and I've resisted diving into. I appreciate your solution that would surely work, but I really want to get this working using the supplied gpx.xsd and cache.xsd files. This is more educational purposes for myself, than trying to find something that works. I am just having problems getting the specific data out using this method and the supplied cache.xsd definition. gpx files), and then modify the code I have a bit to use that instead of the cache.xsd, you can get all the information from the gpx.xsd in to a strongly type object in. If you use the XSD tool to generate your class from the gpx.xsd (version 1.0 for. You should try this out to really see the benefits of doing it this way. XSD files to create up native data structures automatically from a supplied file. I'm specifically trying to learn how to use the supplied. Reading the XML using XPath or something is trivial. ‘ Note the gpxfile object has some propties from the cache.xsd description, but they are all Nothing/null Gpxfile = CType(serializer.Deserialize(reader), GCBetter.cache1_0.cache) Reader = New XmlTextReader(OpenFileDialog.FileName) If OpenFileDialog.ShowDialog().Equals(DialogResult.OK) Then Private Sub btnBrowse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBrowse.Click ĭim serializer As XmlSerializer = New XmlSerializer(GetType(GCBetter.cache1_0.cache)) Note the cache1_0 namespace is what was generated from the XSD tool pointing toward. Here is some sample code below I am using. Why are all the properties coming back null when using just the cache.xsd above? Or does that have to do with knowing how to do 1 above? How do I read in both the standard GPX information as defined in and the extended information as defined in in to the same object when deserilzing a. gpx file from, the only properties I see are the specific ones and they all have null values.ġ. I am able to create up an instance of the XMLSerializer with the classes that are created. I tried doing the same process and creating the. I found out this is because Speakeasy has extended the gpx.xsd to the definition in cache.xsd found at. ![]() log notes) do not show up in the object that is created. ![]() However, a lot of the information that I see in the raw XML in the. I can use this to create an instance of the XMLSeriallizer and use this to read a. I am writing a little program right now for my own learning experiences.
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