Local variable to property of class - linq

Question

I have created an a list using linq. Unfortunately i want to have it as a property of a class. How can i convert it to a accessable property of a class?
public class Component {
// Property of class Component
public string Komponentenart { get; set;}
public int KomponentenID { get; set;}
public string KomponentenArtikelnummer { get; set;}
public var Variablen { get; set; }
}
public Component(string _filename)
{
string componentFile = _filename;
try
{
StreamReader reader = new StreamReader(componentFile, Encoding.UTF8);
XDocument xmlDoc = XDocument.Load(reader);
var variablen = (from element in xmlDoc.Descendants("variable")
select new
{
Variable = (string)element.Attribute("ID"),
Index = (string)element.Attribute("index"),
Name = (string)element.Attribute("name"),
Path = (string)element.Attribute("path"),
Interval = (string)element.Attribute("interval"),
ConnectorId = (string)element.Attribute("connectorId"),
Type = (string)element.Attribute("type"),
Factor = (string)element.Attribute("factor"),
MaxValue = (string)element.Attribute("maxvalue")
}
).ToList();
}

Answer 1

You can not return instances of anonymous types as return value of functions or properties (From my latest information. A quick google search yielded no indication that that's changed so far). Which means you can't make a list of an anonymous type like you are creating with new {VariableName1 = "123", VarName2 = "456"}.
You could define a class or struct which has the members you need, such as Variable, Index, Name, Path. Then when you build your list, instead of creating an oject with new {...}, you create one of a named type, i.e.:
Define this somewhere:
class MyBunchOfVariables
{
public string Variable ;
public string Index ;
public string Name ;
public string Path ;
public string Interval ;
public string ConnectorId ;
public string Type ;
public string Factor ;
public string MaxValue ;
}
Modify the property type accordingly:
public class Component
{
// Property of class Component
public string Komponentenart { get; set;}
public int KomponentenID { get; set;}
public string KomponentenArtikelnummer { get; set;}
public MyBunchOfVariables Variablen { get; set}; // ### CHANGED TYPE ###
}
And then:
var variablen = (from element in xmlDoc.Descendants("variable")
select
new MyBunchOfVariables
{
Variable = (string)element.Attribute("ID"),
Index = (string)element.Attribute("index"),
Name = (string)element.Attribute("name"),
Path = (string)element.Attribute("path"),
Interval = (string)element.Attribute("interval"),
ConnectorId = (string)element.Attribute("connectorId"),
Type = (string)element.Attribute("type"),
Factor = (string)element.Attribute("factor"),
MaxValue = (string)element.Attribute("maxvalue")
}
).ToList();