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Adding some inputs into a <List>

Posted on 2009-03-31
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Last Modified: 2012-05-06
I can manage to get this to work with the top class but when I have lower classes I dont get this to work.

I want a list to be printet out in a listbox. Like this:

Die hard    Date     Distributor      Category

but all the code includes is the thing from class movie and not audioVideo
this wont come out
        private string m_country;
        private string m_language;
        private decimal  m_price;
        private DateTime m_releaseDate;
        private int m_runtime;
        private string m_title;

this willl

        private string m_category;        
        private string m_system;
        private string m_distributor;

See code


List<AudioVideo> audioVideoLista = new List<AudioVideo>();
List<Movie> movieVideoLista = new List<Movie>();
------------------------------------------------------
  //*******************************************************************
        //          ReadXmlFileFilm
        //*******************************************************************
        private void ReadXmlFileFilm()
        {
            string xmlFile;
            xmlFile = Environment.CurrentDirectory;
            xmlFile = xmlFile.Substring(0, xmlFile.Length - 9);
            xmlFile = xmlFile + "xml\\videofilm.xml";
 
            XmlTextReader reader = new XmlTextReader(xmlFile);
            XmlDocument doc = new XmlDocument();
            doc.Load(xmlFile);
 
            // Loop through all the videofilmer/videofilm elements
            foreach (XmlNode film in doc.DocumentElement.SelectNodes("videofilm"))
            {
                Movie mv = new Movie();
 
                XmlNode tempNode;
                // titel
                tempNode = film.SelectSingleNode("titel");
                string title = (tempNode == null ? "" : tempNode.InnerText);
                // språk
                tempNode = film.SelectSingleNode("språk");
                string sprak = (tempNode == null ? "" : tempNode.InnerText);
                // datum
                tempNode = film.SelectSingleNode("datum");
                DateTime datum = DateTime.MinValue;
                if (tempNode != null) datum = DateTime.Parse(tempNode.InnerText);
                // pris
                tempNode = film.SelectSingleNode("pris");
                decimal pris = -1;
                if (tempNode != null) pris = decimal.Parse(tempNode.InnerText);
                // tid
                tempNode = film.SelectSingleNode("tid");
                int tid = -1;
                if (tempNode != null) tid = Int32.Parse(tempNode.InnerText);
                // land
                tempNode = film.SelectSingleNode("land");
                string land = (tempNode == null ? "" : tempNode.InnerText);
                //Category
                tempNode = film.SelectSingleNode("category");
                string category = (tempNode == null ? "" : tempNode.InnerText);
                //System
                tempNode = film.SelectSingleNode("system");
                string system = (tempNode == null ? "" : tempNode.InnerText);
                //distributor
                tempNode = film.SelectSingleNode("distributor");
                string distributor = (tempNode == null ? "" : tempNode.InnerText);
                
                mv.Price = pris;
                mv.RunTime = tid;
                mv.Language = sprak;
                mv.Title = title;
                mv.Date = datum;
                mv.Country = land;
                mv.Category = category;
                mv.Distributor = distributor;
                mv.System = system;
                movieVideoLista.Add(mv);
            }
 
------------------------------------
 
 
namespace AudioVideoGallery.AudioVideoFiles
{
    class AudioVideo
    {
 
        #region Deklaration
 
        private string m_country;
        private string m_language;
        private decimal  m_price;
        private DateTime m_releaseDate;
        private int m_runtime;
        private string m_title;
 
        #endregion
 
        #region Egenskaper
 
 
        //*******************************************************************
        //          Contries
        //*******************************************************************
        public string Country
        {
            get { return m_country; }
            set { m_country = value; }
        } //end Contries
 
 
 
        //*******************************************************************
        //          Language
        //*******************************************************************
        public string Language
        {
            get { return m_language; }
            set { m_language = value; }
        } //end Language
 
 
        //*******************************************************************
        //          Price
        //*******************************************************************
        public decimal Price
        {
            get { return m_price; }
            set { m_price = value; }
        } //end Price
 
 
        //*******************************************************************
        //          Date
        //*******************************************************************
        public DateTime Date
        {
            get { return m_releaseDate; }
            set { m_releaseDate = value; }
        } //end Date
 
 
        //*******************************************************************
        //          RunTime
        //*******************************************************************
        public int RunTime
        {
            get { return m_runtime; }
            set { m_runtime = value; }
        } //end RunTime
 
 
        //*******************************************************************
        //          Title
        //*******************************************************************
        public string Title
        {
            get { return m_title; }
            set { m_title = value; }
        } //end Title
 
 
        #endregion
 
 
 
        #region Metoder
 
 
        //*******************************************************************
        //          ToString
        //*******************************************************************
        public override string ToString()
        {
            return "" + m_title + "_!_" + m_language + "_!_" + m_releaseDate + "_!_" +m_price +"_!_" + m_runtime + "_!_" + m_country + "_!_";
        } //end ToString
 
        #endregion
 
    }
}
 
---------------------------------------------
 
 
namespace AudioVideoGallery.AudioVideoFiles
{
    class Movie : AudioVideo
    {
        #region Deklaration
 
        private string m_category;        
        private string m_system;
        private string m_distributor;
 
        #endregion
 
        
        
        #region Egenskaper
 
 
        //*******************************************************************
        //          Category
        //*******************************************************************
        public string Category
        {
            get { return m_category; }
            set { m_category = value; }
        } //end Category
 
 
 
        //*******************************************************************
        //          System
        //*******************************************************************
        public string System
        {
            get { return m_system; }
            set { m_system = value; }
        } //end System
 
         
 
        
        //*******************************************************************
        //          Distributor
        //*******************************************************************
        public string Distributor
        {
            get { return m_distributor; }
            set { m_distributor = value; }
        } //end Distributor
 
 
        #endregion
 
 
 
        #region Metoder
 
 
        //*******************************************************************
        //          ToString
        //*******************************************************************
        public override string ToString()
        {
            return "" + m_category + "_!_" + m_distributor + "_!_" + m_system + "_!_";
        } //end ToString
 
        #endregion
    }
}

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Question by:Mickeys
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3 Comments
 
LVL 15

Accepted Solution

by:
oobayly earned 2000 total points
ID: 24028120
If I understand your meaning, when you use List<Movie> movieVideoLista as the datasource for the listbox, the text displayed in the listbox isn't what you expect.

I think you wanted to be able to access m_title, m_releaseDate in the class Movie, but these are marked as private in AudioVideo, so they can't be accessed. You could always declare them as protected, but I wouldn't recommend it.

Apologies if this is not what you wanted.
public override string ToString() {
  //return "" + m_category + "_!_" + m_distributor + "_!_" + m_system + "_!_";
  return this.Title + "_!_" + this.Date + "_!_" + this.Distributor + "_!_" +
    this.Category + "_!_";
} //end ToString

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Author Comment

by:Mickeys
ID: 24028193
but I thought they should be private. I use the get and set to access them.

The code you wrote is that in the top class AudioVideo
or the lower Movie.
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LVL 15

Expert Comment

by:oobayly
ID: 24028239
The code I wrote would replace public override string ToString() in Movie.
You're absolutely correct, I would have done the same and made m_title private. The only reason I suggested using Protected is because I thought you may have been trying to access m_title from Movie.ToString()
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