How to read and write xml file in vb6

If reader. IsStartElement Then ' See if perls element or article element. Read Then Console. Thursday, September 5, PM. He used XMLDocument. Vijay, First of all for those who are put on the wrong track with your text scripting. Take a look at the literals, I know that those who have tried it swore with it. Smith 0. Please call me Frank :. Dang man, where ya been? I am well - as it gets. I'm convinced that the older I get, the faster I get old.

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Please rate your experience Yes No. This section shows how we can use this simple method to do a quick first implementation that is usually good enough for a quick first prototype. The tree structure contains a root object, a collection of root items, and their children:.

This simple XmlSerializer method requires the above object model structure and the work-flow shown in the main method everything else is just demo set-up. The above code generates XML into a string or a file, and reads the XML from a string or a file, depending on whether we use the:.

The foreach loop at the bottom of the listing is used to visit traverse each node in the tree and display its content. We can see here that saving serializing and loading de-serializing from and to XML is not that complicated when we consider that we are looking at a tree structure.

The naming of the XML elements is by default based on class names and property names but this can be separated from the model, if we decorate items accordingly [6]. A pit-fall to avoid here are direct references to parent items, because these would result into a circular structure, which cannot be serialized in XML this is a limitation of the XML format.

But this does not mean that we cannot have a parent pointer in the model, if we feel like we need one. We can simply apply the [XmlIgnore] [6] tag to the Parent property and get away with that because the Parent property is not needed for XML serialization or we can resolve the parent relationship by using a ParentId as shown in the code below assuming that Ids are unique over the complete tree structure.

The ParentId can be converted into a parent reference upon loading by using the foreach loop at the bottom of the second last listing together with a dictionary as previously explained for the Level-Order conversion. The above serialization and de-serialization code requires the class of the root to be known and can be done between different "storage types", such as, string, file etc.

So, that's the easy solution and it should be applicable as long as the structure is rather small a few thousand objects and public access to the objects that make up the model is not a problem. This is where the IXmlSerializable interface and the DataContractSerializer come to the rescue as we will see in the developments of the next sections.

The IXmlSerializable interface [7] must be implemented by the classes that represent the data model.