HOW CAN I WRITE XML FROM LIST COLLECTION ???

[TARAK NATH ROY]

HOW CAN I WRITE XML FROM LIST COLLECTION ??? I have List like KeyValuePair<int, List<Point2D>> arcCollection here total item in arcCollection is 30. i.e arcCollection.count =30 And each List<Point2D>> i have stored 3 points(x1,y1 x2y2 x3y3) Each there any way out that to write XML of value of List<Point2D>> for each arcCollection.count wthe regards tarak

[0x3c0]

Look into XDocument and LINQ. You could also add the items using a loop. If all else fails, then this piece of C# code should give you the general idea:

using System.Xml.Linq;

   XDocument xDoc = new XDocument(new XElement("root",
            new XElement("key", arcCollection.Key),
            new XElement("values",
                from Point pt in arcCollection.Value
                select new XElement("point",
                    new XElement("x", pt.X),
                    new XElement("y", pt.Y)
                )
            )
        ));

That piece of code iterates through every Point structure in arcCollection.Value, and creates a nice neat XML structure. I didn't have the Point2D structure definition with me, so I used the Point structure instead, but this is still fairly neat. If you need to add properties, then look at the lines which reference pt.X and pt.Y. They form a list, and you simply have to add the properties as XElements like I did. Don't forget to change the definition of pt to a Point2D structure though, otherwise the code probably won't even compile

[Tristan Rhodes]

XmlSerializer. Although you might need to modify your object hierachy. You can read/write the serialized object output to streams and files.

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