CODEWITHSUNDEEP
c#xmllinq
Ahkam Nihardeen
Ahkam Nihardeen

Reputation: 147

Make C# function stored in XML

I have a specific function that I want to run, and it is located inside an XML File:

Console.WriteLine("Text for test, {0}, {1}", testWord, testWord2);

The text is stored in an XML file:

<?xml version="1.0" encoding="utf-8" ?>
<root>
  <world>
    <region name="TestRegion">
      <area name="TestArea">
        <building name="Outside">
          <room name="TutorialRoom">
            <textToDisplay>"Text for test, {0},{1}"</textToDisplay>
            <extraString>testWord,tesWord2</extraString>
          </room>
        </building>
      </area>
    </region>
  </world>
</root>

I can easily get the string data using LINQ

XElement xelement = XElement.Load("..\\..\\LocationDatabase.xml");

        var textToDisplay= xelement.Elements("world")
            .Elements("region").Where(region => (string)region.Attribute("name") == "TestRegion")
            .Elements("area").Where(area => (string)area.Attribute("name") == "TestArea")
            .Elements("building").Where(building => (string)building.Attribute("name") == "Outside")
            .Elements("room").Where(room => (string)room.Attribute("name") == "TutorialRoom")
            .Elements("textToDisplay");

        var extraString= xelement.Elements("world")
            .Elements("region").Where(region => (string)region.Attribute("name") == "TestRegion")
            .Elements("area").Where(area => (string)area.Attribute("name") == "TestArea")
            .Elements("building").Where(building => (string)building.Attribute("name") == "Outside")
            .Elements("room").Where(room => (string)room.Attribute("name") == "TutorialRoom")
            .Elements("extraString");

My issue here is how I make the command `Console.WriteLine("Something {0}", extra); to accept both LINQ statements. Anybody have an idea?

Upvotes: 0

Views: 231

Answers (3)

Marco
Marco

Reputation: 23937

how about this:

First split the extra string into a String[] by using Split(',') and then use a String.Format() to display the textToDisplay with the 2 strings in your string array.

 var values = extraString.FirstOrDefault().Value.Split(',');
 Console.WriteLine(String.Format(textToDisplay.First().Value, values[0], values[1]));

Upvotes: 1

Jeroen Mostert
Jeroen Mostert

Reputation: 28779

The call to Console.WriteLine() is nothing special -- it just expects a string and an object[]. Your data is there, but buried in XElement instances. So

Console.WriteLine(
  (string) textToDisplay.First(), 
  ((string) extraString.First()).Split(',')
);

does what you want.

Note that this only works when "extraString" is something simple like a comma-separated list. You can't put arbitrary expressions like "2 + 2" in there and expect that to work -- for that we'd need to invoke the compiler and actually produce code, which is much more complicated.

Upvotes: 2

Sayse
Sayse

Reputation: 43300

You can simply just pass in the strings as they are, however you will probably need to split the second one at the comma.

    string one = "format me {0}{1}";
    string two = "here, and here";
    Console.WriteLine(one, two.Split(','));

IDEOne Example

Upvotes: 2

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