[quote=46624:@Peter Truskier]I read the question as referring to “project file” as the application’s “project,” not a Xojo project. If Norman is correct, and you do mean a Xojo “project,” please ignore the following, Oliver…
What I do in cases like this is to separate the creation of the XMLDocument from the code the creates an object’s XMLElement.
I’m assuming you have a method somewhere that is responsible for creating the export, and that knows about the object(s) that need to be included in the export. Create the XMLDocument in that method, create any child element that will hold the objects, and then pass that immediate parent node to a method of each object to add itself to the XML structure.
[code]dim myXML as NEW XMLDocument
dim myRootNode, myParentNode as XMLNode
dim i,n as integer
dim myObject as clsXMLAwareObject // this could be a super class, or a class interface
myRootNode = myXML.createElement(“root”)
myParentNode = myXML.createElement(“objects”)
// add whatever other elements, attributes, etc. that you need (if any) on the document,
// root node, or parent node here
n = mObjectArr.uBound // mObjectArr is defined somewhere outside the method as clsXMLAwareObject()
for i = 0 to n
myObject = mObjectArr(i)
// do whatever you want to with myXML here
In clsXMLAwareObject, create the method addYourselfToXMLNode(theNode as XMLNode) something like this:
if theNode <> NIL then
dim myNode as xmlNode = theNode.ownerDocument.createElement("obj")
I would also, then, create a constructor on each obj class/subclass which takes an XMLElement as a parameter (theNode as XMLNode) so that the objects can be reconstructed from the XML Document:
if theNode <> NIL then
dim myIDStr, myNameStr as string
myIDStr = theNode.getAttribute("ID")
myNameStr = theNode.getAttribute("Name")
if myIDStr <> "" then me.mID = val(myIDStr) // possibly add error handling for an empty ID?
if myNameStr<> "" then me.mName = myNameStr // possibly add error handling for an empty name?
This will allow you to select any subset of all your objects, and export them without needing to combine XMLDocuments. It also means that once you’ve created and debugged the object’s (or objects’) method(s) to add a node to the parent node, you need rarely, if ever, look at the code again :P[/quote]
Thanks but I mean my app’s project file.