C#•2y ago

✅ Two symbols not resolved

I have two errors saying "symbol not resolved" on my code. All the methods here are inside of the same class. I tried to initialize a variable from the Class but it did not work. Could anyone kindly point me out a correct direction (like links to tutorials/videos or just a little bit of advice)?

public static Hashtable Solution
        {
            get
            {
                return _solution;
            }

            private set
            {
                _solution = value;
            }
        }

  public void AddItem(string attribute, string classification, string column)
        {
            column = ActivateReader(@"/.csv").ToString();
            var key = Convert.ToString(attribute + Convert.ToString("->")) + classification; //irgendwo hier soll csv datei abgelesen werden

            Finder item = null;
            if (Items.ContainsKey(key))
                ;

            if (item == null)
            {
                item = new Finder(attribute, classification, column);
                
            }
        }

public void Build(TextReader r)
    {
        foreach (string head in header)
        {
            list.Add(new Solution(head)); //ERROR "Symbol Solution not resolved"
        }

        string line = r.ReadLine();
        
        while (line != null)
        {
            var tokens = line.Split(new char[] { ';' });

            string classfication = tokens[0];

            for (int i = 1; i <= tokens.Length - 1; i++)
            {
                Finder add = new Finder();
                string attribute = tokens[i];


                list[i].AddItem(attribute, classfication, ""); //ERROR "Symbol AddItem not resolved"
            }
            line = r.ReadLine();
        }
        r.Close();

    }

public static Hashtable Solution
        {
            get
            {
                return _solution;
            }

            private set
            {
                _solution = value;
            }
        }

  public void AddItem(string attribute, string classification, string column)
        {
            column = ActivateReader(@"/.csv").ToString();
            var key = Convert.ToString(attribute + Convert.ToString("->")) + classification; //irgendwo hier soll csv datei abgelesen werden

            Finder item = null;
            if (Items.ContainsKey(key))
                ;

            if (item == null)
            {
                item = new Finder(attribute, classification, column);
                
            }
        }

public void Build(TextReader r)
    {
        foreach (string head in header)
        {
            list.Add(new Solution(head)); //ERROR "Symbol Solution not resolved"
        }

        string line = r.ReadLine();
        
        while (line != null)
        {
            var tokens = line.Split(new char[] { ';' });

            string classfication = tokens[0];

            for (int i = 1; i <= tokens.Length - 1; i++)
            {
                Finder add = new Finder();
                string attribute = tokens[i];


                list[i].AddItem(attribute, classfication, ""); //ERROR "Symbol AddItem not resolved"
            }
            line = r.ReadLine();
        }
        r.Close();

    }

7 Replies

Angius•2y ago

Why are you using HashTable...? Also, do you have a class named Solution?

morry329#OP•2y ago

The Hashtable came from the book that I practice code with. No, I only have the data named

Solution

Solution

, this one:

public static Hashtable Solution
        {
            get
            {
                return _solution;
            }

            private set
            {
                _solution = value;
            }
        }

public static Hashtable Solution
        {
            get
            {
                return _solution;
            }

            private set
            {
                _solution = value;
            }
        }

Angius•2y ago

Just so you know, hashtable hasn't been in use for for probably well over a decade now Dictionary<TKey, TValue> is what you use So if it came from a book, the book is probably too old to be of any use

morry329#OP•2y ago

Ahhhhhh Thank you so much for pointing that out The book was first published in 2018, but seems to me like I am working with the deprecated reference I did not know Hashtable hasn't been in use for such a long time

Angius•2y ago

Here you can find a bit more about non-generic and generic collections and why you shouldn't be using the former: https://youtu.be/egPvSkPwDN4?t=2107

morry329#OP•2y ago

Thanks a lot for the link, will check it out tomorrow 😉

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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✅ Two symbols not resolved