Show position of item in a list

Question

I am working with a link list. My constructor takes arrays with items in it or appends an item(one at time) to the list through BtnAddTree click. For experiment

Answer 1

Develop a way to compare the object properly. is tree type unique? maybe you need a full icomparable?

then create a method in the listoftrees class

public int getPosition(fruit_trees tree)
{
 fruit_trees ft = first_tree;
 if(ft.tree_type == tree.tree_type)
 {
      return 0; //or return 1 depending on how you want to index stuff
 }
 int i = 1;//possibly set to 2 if returning 1 above
 while(ft.next_tree != null)
 {
     ft = ft.next_tree;
     if(ft.tree_type == tree.tree_type)
     {
        return i; 
     }
     i++;
 }

 return -1; //or something else here to show that its not in the list

}

also as a side note ..Dont set the label value in the class in the method Current_Tree(). That should return a fruit_trees object and the btn click methods should set the label value .

you should actually just get rid of that method completely(unless there is some reason for it outside of the code above.