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Table Row (//tr) HtmlNodes seem to have issue with rows being skipped

I'm currently trying to scrape a cannabis strain database as it is no longer being maintained. I seem to be running into an issue where table rows are skipped in my logic but it really doesn't make sense, it's like a break is being called when I'm iterating through the //tr elements of the table that is storing the chemical reports.
Is it something like the δ α symbols in the next row. I've tried regex replacing them out to now luck. Any help would be appreciated all code is in a single class console app.
Issue is in the table.ChildNodes not iterating all the way through. Located in the ParseChemical() method.
Sample Page: http://ocpdb.pythonanywhere.com/ocpdb/420/
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.ComponentModel.Design;
using System.IO.IsolatedStorage;
using System.Linq;
using System.Linq.Expressions;
using System.Net;
using System.Net.Http;
using System.Reflection.Emit;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using HtmlAgilityPack;
using Microsoft.VisualBasic.CompilerServices;
namespace CScrape
{
class Program
{
private static readonly HttpClient Client = new HttpClient();
private static readonly string BaseUri = "http://ocpdb.pythonanywhere.com/ocpdb/";
private static int _startId = 420;
private static int _endId = 1519;
private static List<Lab> _labs = new List<Lab>();
private static List<ChemicalItem> _chemicalItems = new List<ChemicalItem>();
private static List<UnitOfMeasure> _uoms = new List<UnitOfMeasure>();
private static List<Strain> _strains = new List<Strain>();
static void Main(string[] args)
{
Client.DefaultRequestHeaders.Accept.Clear();
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls13;
_uoms.AddRange(GetUoms());
for (var i = _startId; i <= _endId; i++)
{
var result = GetUri($"{BaseUri}{i}").Result;
_strains.Add(ParseChemical(result));
}
}
private static long AddChemicalItem(ChemicalItem item)
{
if (ChemicalExists(item.Symbol))
return _chemicalItems.FirstOrDefault(ci => ci.Symbol == item.Symbol)?.Id ?? -1;
item.Id = _chemicalItems.Count + 1;
_chemicalItems.Add(item);
return item.Id;
}
private static void UpdateChemicalItem(ChemicalItem item)
{
if (!ChemicalExists(item.Symbol)) return;
var index = _chemicalItems.IndexOf(item);
if (!(index >= 0)) return;
_chemicalItems.RemoveAt(index);
AddChemicalItem(item);
}
private static long AddLab(Lab lab)
{
if (LabExists(lab.Name))
return _labs.FirstOrDefault(l => l.Name == lab.Name)?.Id ?? -1;
lab.Id = _labs.Count + 1;
_labs.Add(lab);
return lab.Id;
}
private static async Task<string> GetUri(string uri)
{
var response = await Client.GetByteArrayAsync(uri);
return Encoding.UTF8.GetString(response, 0, response.Length - 1);
}
private static Strain ParseChemical(string html)
{
html = Regex.Replace(html, #"Δ", "Delta");
HtmlDocument htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(html);
var strain = new Strain();
strain.Reports ??= new List<ChemicalReport>();
try
{
strain.Name = htmlDoc.DocumentNode.SelectSingleNode("/html/body/div/div[1]/div[1]/h3/b").InnerText;
}
catch (Exception e)
{
// TODO: DOcument Exception
Console.WriteLine(e.Message);
}
if (string.IsNullOrWhiteSpace(strain.Name)) return null;
try
{
var ocpId = htmlDoc.DocumentNode.SelectSingleNode("/html/body/div/div[1]/div[2]/p/b/text()[1]");
strain.OcpId = SanitizeHtml(ocpId.InnerText).Split(':')[1];
}
catch (Exception e)
{
// TODO: Document Exception
Console.WriteLine(e.Message);
}
if (string.IsNullOrWhiteSpace(strain.OcpId)) return null;
try
{
var date = htmlDoc.DocumentNode.SelectSingleNode("/html/body/div/div[1]/div[2]/p/text()");
}
catch (Exception e)
{
// TODO: Document Exception
Console.WriteLine(e.Message);
}
var chemReport = new ChemicalReport();
chemReport.Items ??= new List<ReportItem>();
try
{
var table = htmlDoc.DocumentNode.SelectSingleNode("/html/body/div/div[2]/div[1]/table/tbody");
var children = table.ChildNodes.ToList();
// On the sample page there are 200 children here
// However it only interates through the first few and then just breaks out of the loop
foreach (var child in children)
{
var name = child.Name;
if (child.Name == "tr")
{
var infos = child.SelectNodes("th|td");
foreach (var info in infos)
{
if(string.IsNullOrWhiteSpace(info.InnerText)) continue;
if (info.InnerText.Contains("Report")) continue;
if (double.TryParse(info.InnerText, out var isNumber))
{
var last = chemReport.Items.LastOrDefault();
if (last == null) continue;
if (last.Value <= 0.0000) last.Value = isNumber;
else
{
var further = chemReport.Items.ToArray()[chemReport.Items.Count - 2];
if (further.Value <= 0.0000)
further.Value = isNumber;
}
continue;
}
var _ = new ChemicalItem
{
Name = info.InnerText,
Symbol = info.InnerText
};
_.Id = AddChemicalItem(_);
var report = new ReportItem
{
Chemical = _,
ChemicalItemId = _.Id,
UnitOfMeasureId = 1,
UoM = GetUoms()[0]
};
chemReport.Items.Add(report);
}
}
}
strain.Reports.Add(chemReport);
}
catch (Exception e)
{
// TODO: Document exception
Console.Write(e.Message);
}
return strain;
}
private static List<UnitOfMeasure> GetUoms()
{
return new List<UnitOfMeasure>
{
new UnitOfMeasure {Name = "Milligrams per Gram", Symbol = "mg/g"},
new UnitOfMeasure {Name = "Percent", Symbol = "%"}
};
}
private static string SanitizeHtml(string text, string replacement = "")
{
return Regex.Replace(text, #"<[^>]+>| |α|\n|\t", replacement);
}
private static string GetLabName(string[] split)
{
var strip = split[0].Split(':')[1];
for(var i = 1; i < split.Length - 2; i ++)
{
if (string.IsNullOrWhiteSpace(split[i])) break;
strip += $" {split[i]}";
}
return strip;
}
private static string GetSampleId(string[] split)
{
var found = false;
foreach (var item in split)
{
if (found)
return item.Split(':')[1];
if (item == "Sample") found = true;
}
return "NA";
}
private static bool LabExists(string name)
{
return _labs.Any(lab => lab.Name == name);
}
private static bool ChemicalExists(string name)
{
return _chemicalItems.Any(ci => ci.Symbol == name);
}
private static ReportItem GetReportItem(string text)
{
if (string.IsNullOrWhiteSpace(text)) return null;
ReportItem ri = null;
try
{
var clean = SanitizeHtml(text);
var check = 0;
var split = clean.Split(':');
var label = split[0];
if (string.IsNullOrWhiteSpace(label)) return null;
if (double.TryParse(label, out var invalidType)) return null;
var val = string.Empty;
if (split.Length == 1)
{
if (split[0].Contains("Total"))
{
Regex re = new Regex(#"([a-zA-Z]+)(\d+)");
Match result = re.Match(split[0]);
label = result.Groups[1].Value;
val = result.Groups[2].Value;
}
}
if(split.Length > 1)
val = split[1];
if (!ChemicalExists(label)) AddChemicalItem(new ChemicalItem {Id = _chemicalItems.Count + 1,Symbol = label});
ri = new ReportItem();
ri.Chemical = _chemicalItems.FirstOrDefault(ci => ci.Symbol == label);
ri.UoM = val.Contains("%")
? _uoms.FirstOrDefault(uom => uom.Symbol == "%")
: _uoms.FirstOrDefault(uom => uom.Symbol == "mg/g");
if (string.IsNullOrWhiteSpace(val)) return ri;
var value = val.Contains("%") ? split[1].Substring(0, val.Length - 1) : val;
ri.Value = Convert.ToDouble(value);
}
catch (Exception e)
{
// TODO: Document Exception
Console.WriteLine(e.Message);
}
return ri;
}
//private static ChemicalItem GetChemicalItem(string text)
//{
//}
public class Strain
{
public long Id { get; set; }
public string Name { get; set; }
public DateTime Created { get; set; }
public string OcpId { get; set; }
public bool IsHidden { get; set; } = false;
public virtual ICollection<ChemicalReport> Reports { get; set; }
}
public class Lab
{
public long Id { get; set; }
public string Name { get; set; }
public virtual ICollection<ChemicalReport> Reports { get; set; }
}
public class ChemicalReport
{
public long Id { get; set; }
[ForeignKey("Lab")]
public long LabId { get; set; }
public virtual Lab Lab { get; set; }
public string SampleId { get; set; }
public DateTime Created { get; set; }
public virtual ICollection<ReportItem> Items { get; set; }
[ForeignKey("Strain")]
public long StrainId { get; set; }
public virtual Strain Strain { get; set; }
}
public class ChemicalItem
{
public long Id { get; set; }
public string Name { get; set; }
public string Symbol { get; set; }
}
public class ReportItem
{
public long Id { get; set; }
[ForeignKey("Chemical")]
public long ChemicalItemId { get; set; }
public virtual ChemicalItem Chemical { get; set; }
public double Value { get; set; }
[ForeignKey("UoM")]
public long UnitOfMeasureId { get; set; }
public virtual UnitOfMeasure UoM { get; set; }
}
public class UnitOfMeasure
{
public long Id { get; set; }
public string Name { get; set; }
public string Description { get; set; }
public string Symbol { get; set; }
}
}
}

Insufficient Memory error being thrown

namespace Calendar
{
public partial class MainCalendar : Form
{
private JArray items;
private List<String> AMList = new List<String>();
private List<String> PMList = new List<String>();
private List<String> accessToCalendarFilepath = new List<String>();
private List<CalendarModel> people;
private List<List<CalendarModel>> managers = new List<List<CalendarModel>>();
private List<String> userSelection = new List<String>();
private bool authorizedAccess = false;
private String javaScriptFileContainingJSONObject = "";
public MainCalendar()
{
InitializeComponent();
var locationInformation = System.Environment.CurrentDirectory + Path.DirectorySeparatorChar + "location.json";
using (StreamReader file = File.OpenText(locationInformation))
using (JsonTextReader reader = new JsonTextReader(file))
{
JArray o = (JArray)JToken.ReadFrom(reader);
items = o;
}
foreach (var item in items.Children())
{
var itemProperties = item.Children<JProperty>();
// you could do a foreach or a linq here depending on what you need to do exactly with the value
var myElement = itemProperties.FirstOrDefault(x => x.Name == "name");
var myElementValue = myElement.Value; ////This is a JValue type
if(myElementValue.ToString().Contains("AM"))
{
AMList.Add(myElementValue.ToString());
}
if (myElementValue.ToString().Contains("PM"))
{
PMList.Add(myElementValue.ToString());
}
}
mondayAM.DataSource = AMList.ToArray();
tuesdayAM.DataSource = AMList.ToArray();
wednesdayAM.DataSource = AMList.ToArray();
thursdayAM.DataSource = AMList.ToArray();
fridayAM.DataSource = AMList.ToArray();
mondayPM.DataSource = PMList.ToArray();
tuesdayPM.DataSource = PMList.ToArray();
wednesdayPM.DataSource = PMList.ToArray();
thursdayPM.DataSource = PMList.ToArray();
fridayPM.DataSource = PMList.ToArray();
loadAccessControl("accesscontrol.json");
dateTimePicker1.AlwaysChooseMonday(dateTimePicker1.Value);
String dateSelected = dateTimePicker1.Value.ToShortDateString();
findManagerForSelectedDate(dateSelected);
}
public void loadAccessControl(String fileName)
{
var accessControlInformation = Environment.CurrentDirectory + Path.DirectorySeparatorChar + fileName;
List<AccessControl> accounts = JsonConvert.DeserializeObject<List<AccessControl>>(File.ReadAllText(accessControlInformation));
foreach (AccessControl account in accounts)
{
Console.WriteLine(account.accountName);
if (account.accountName.ToLower().Contains(Environment.UserName.ToLower()))
{
foreach (CalendarFile file in account.files)
{
// Console.WriteLine(Environment.CurrentDirectory + Path.DirectorySeparatorChar + "content" + Path.DirectorySeparatorChar + file.Filename);
accessToCalendarFilepath.Add(Environment.CurrentDirectory + Path.DirectorySeparatorChar + "content" + Path.DirectorySeparatorChar + file.Filename);
}
break;
}
}
contentsOfFile();
}
private void contentsOfFile()
{
String line;
foreach(var file in accessToCalendarFilepath)
{
StreamReader contentsOfJSONFile = new StreamReader(file);
while((line = contentsOfJSONFile.ReadLine()) != null)
{
if(line.Contains("var "))
{
javaScriptFileContainingJSONObject = javaScriptFileContainingJSONObject + "[";
}
else if(line.Contains("];"))
{
javaScriptFileContainingJSONObject = javaScriptFileContainingJSONObject + "]";
}
else
{
javaScriptFileContainingJSONObject = javaScriptFileContainingJSONObject + line;
}
}
people = JsonConvert.DeserializeObject<List<CalendarModel>>((string)javaScriptFileContainingJSONObject);
managers.Add(people);
javaScriptFileContainingJSONObject = "";
}
}
private void findManagerForSelectedDate(String dateSelected)
{
dateSelected = dateTimePicker1.Value.ToShortDateString();
List<String> managerNames = new List<String>();
foreach(var item in managers)
{
foreach (var subitem in item)
{
CalendarModel c = subitem;
Console.WriteLine(c.date);
c.name = new CultureInfo("en-US", false).TextInfo.ToTitleCase(c.name);
if (userSelection.Count > 0)
{
foreach (var addedUser in userSelection.ToArray())
{
if (!addedUser.Contains(c.name))
{
userSelection.Add(c.name); // CRASHING HERE
//{"Exception of type 'System.OutOfMemoryException' was thrown."}
}
}
}
else
{
userSelection.Add(c.name);
}
}
}
Console.WriteLine();
}
I keep running out of memory.
The CalendarModel class:
namespace Calendar
{
class CalendarModel
{
[JsonProperty("name")]
public string name { get; set; }
[JsonProperty("date")]
public string date { get; set; }
[JsonProperty("title")]
public string title { get; set; }
[JsonProperty("mondayAM")]
public string mondayAM { get; set; }
[JsonProperty("mondayPM")]
public string mondayPM { get; set; }
[JsonProperty("tuesdayAM")]
public string tuesdayAM { get; set; }
[JsonProperty("tuesdayPM")]
public string tuesdayPM { get; set; }
[JsonProperty("wednesdayAM")]
public string wednesdayAM { get; set; }
[JsonProperty("wednesdayPM")]
public string wednesdayPM { get; set; }
[JsonProperty("thursdayAM")]
public string thursdayAM { get; set; }
[JsonProperty("thursdayPM")]
public string thursdayPM { get; set; }
[JsonProperty("fridayAM")]
public string fridayAM { get; set; }
[JsonProperty("fridayPM")]
public string fridayPM { get; set; }
[JsonProperty("saturdayAM")]
public string saturdayAM { get; set; }
[JsonProperty("saturdayPM")]
public string saturdayPM { get; set; }
}
}
I keep crashing at
userSelection.Add(c.name)

Take a close look at what you are doing
foreach (var addedUser in userSelection.ToArray())
{
if (!addedUser.Contains(c.name))
{
userSelection.Add(c.name);
}
}
You are adding to userSelection in the userSelection loop
The test is on !addedUser.Contains
You should not even be able to do that but I think the ToArrray() is letting it happen
So you add Sally
Then then Mark
Then you add Mark again because in the loop Mark != Sally
You are not using List<String> managerNames = new List<String>();
private void findManagerForSelectedDate(String dateSelected)
{
dateSelected = dateTimePicker1.Value.ToShortDateString();
You pass in dateSelected, then overright with dateTimePicker1, and then you don't even use it
Most of you code makes very little sense to me

Dropdown has a SelectedValue which is invalid because it does not exist in the list of items, even though I cleared the selected items (C#)

I'm getting this error on DataBind(), and I don't know why since there shouldn't be anything selected.
DdState.Items.Clear();
DdState.DataSource = UsStates;
DdState.DataTextField = "Title";
DdState.DataValueField = "Title";
DdState.Items.Insert(0, String.Empty);
if (DdState.SelectedItem != null)
{
DdState.SelectedItem.Selected = false;
}
DdState.DataBind();
private IEnumerable<IStateItem> UsStates
{
get
{
var statesFolder = _sitecoreService.GetItem<ISitecoreItem>(ItemReference.BcsUs_ProductData_States.Guid);
if (statesFolder == null)
return new List<IStateItem>();
List<IStateItem> usStates = _sitecoreService.QueryChildren<IStateItem>(statesFolder).OrderBy(s => s.Title).ToList();
return usStates;
}
}
I tried putting in DdState.SelectedIndex = 0 before the DataBind(), but then I got an error that the selected index did not exist. What's going on?

If the DataSource is a list its much easier to implement. So just "convert" the UsStates IEnumerable to a List an then add it to the data source.
DdState.DataSource = UsStates.ToList();
Then choose the property of a list item as binding.
OR
public Form1()
{
InitializeComponent();
DdState.Items.Clear();
DdState.DataSource = UsStates;
DdState.DisplayMember = "Statename";
DdState.SelectedIndex = 0;
}
private List<IStateItem> UsStates
{
get
{
List<IStateItem> usStates = new List<IStateItem>();
usStates.Add(new IStateItem("California","status1"));
usStates.Add(new IStateItem("Ohio", "status3"));
return usStates;
}
}
private class IStateItem
{
public IStateItem(string statename, string stateStatus)
{
Statename = statename;
StateStatus = stateStatus;
}
public string Statename { get; set; }
public string StateStatus { get; set; }
}

Could there be something wrong with your IStateItem class?
I copy/pasted your code in a new asp.net application, made my own IStateItem class and it works.
using System;
using System.Collections.Generic;
namespace TestIt
{
public partial class Form1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
FillTheList();
}
private void FillTheList()
{
ddl_TheList.Items.Clear();
ddl_TheList.DataSource = UsStates;
ddl_TheList.DataTextField = "statename";
ddl_TheList.DataValueField = "stateStatus";
//ddl_TheList.Items.Insert(0, String.Empty);
ddl_TheList.DataBind();
ddl_TheList.SelectedIndex = 0;
}
private IEnumerable<IStateItem> UsStates
{
get
{
List<IStateItem> usStates = new List<IStateItem>();
for (int i = 0; i < 10; i++)
{
usStates.Add(new IStateItem { statename = "state #" + i, stateStatus = "cool state bro" });
}
return usStates;
}
}
}
public class IStateItem
{
public string statename { get; set; }
public string stateStatus { get; set; }
}
}

How to split data into datagridview

I need to split values from two columns into a datagridview.
You can see a screenshot of my values here:
I need to split match and result columns to have a column for every value.
This is my code:
Class:
using System;
using System.Collections.Generic;
namespace bexscraping
{
public class Bet
{
public string Match { get; set; }
public string Result { get; set; }
public List<string> Odds { get; set; }
public string Date { get; set; }
public Bet()
{
Odds = new List<string>();
}
public override string ToString()
{
String MatchInfo = String.Format("{0}: {1} -> {2}", Date, Match, Result);
String OddsInfo = String.Empty;
foreach (string d in Odds)
OddsInfo += " | " + d;
return MatchInfo + "\n" + OddsInfo;
}
}
}
form1:
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using HtmlAgilityPack;
namespace bexscraping
{
public partial class Form1 : Form
{
private List<Bet> Bets;
private Bet SelectedBet { get; set; }
public Form1()
{
InitializeComponent();
dataGridView1.SelectionChanged += DataGridView1_SelectionChanged;
}
private void DataGridView1_SelectionChanged(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows.Count > 0) {
SelectedBet = (Bet)dataGridView1.SelectedRows[0].DataBoundItem;
if (SelectedBet.Odds.Count > 0) {
textBox1.Text = SelectedBet.Odds[0].ToString();
textBox2.Text = SelectedBet.Odds[1].ToString();
textBox3.Text = SelectedBet.Odds[2].ToString();
}
}
}
private void Form1_Load(object sender, EventArgs e)
{
LoadInfo();
if (Bets.Count > 0)
{
SelectedBet = Bets[0];
dataGridView1.DataSource = Bets;
if (SelectedBet.Odds.Count > 0)
{
textBox1.Text = SelectedBet.Odds[0].ToString();
textBox2.Text = SelectedBet.Odds[1].ToString();
textBox3.Text = SelectedBet.Odds[2].ToString();
}
}
}
private void LoadInfo()
{
string url = "http://www.betexplorer.com/soccer/australia/northern-nsw/results/";
HtmlWeb web = new HtmlWeb();
HtmlAgilityPack.HtmlDocument doc = web.Load(url);
Bets = new List<Bet>();
// Lettura delle righe
var Rows = doc.DocumentNode.SelectNodes("//tr");
foreach (HtmlNode row in Rows)
{
if (!row.GetAttributeValue("class", "").Contains("rtitle"))
{
if (string.IsNullOrEmpty(row.InnerText))
continue;
Bet rowBet = new Bet();
foreach (HtmlNode node in row.ChildNodes)
{
string data_odd = node.GetAttributeValue("data-odd", "");
if (string.IsNullOrEmpty(data_odd))
{
if (node.GetAttributeValue("class", "").Contains(("first-cell")))
rowBet.Match = node.InnerText.Trim();
var matchTeam = rowBet.Match.Split("-", StringSplitOptions.RemoveEmptyEntries);
rowBet.Home = matchTeam[0];
rowBet.Host = matchTeam[1];
if (node.GetAttributeValue("class", "").Contains(("result")))
rowBet.Result = node.InnerText.Trim();
var matchPoints = rowBet.Result.Split(":", StringSplitOptions.RemoveEmptyEntries);
rowBet.HomePoints = int.Parse(matchPoints[0];
rowBet.HostPoints = int.Parse(matchPoints[1];
if (node.GetAttributeValue("class", "").Contains(("last-cell")))
rowBet.Date = node.InnerText.Trim();
}
else
{
rowBet.Odds.Add(data_odd);
}
}
if (!string.IsNullOrEmpty(rowBet.Match))
Bets.Add(rowBet);
}
}
}
}
}
I hope you can help me. Thanks!

Ok after I try it this is working solution for me.
Probably its diferent namespace but all components have same name.
Form1 class
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using HtmlAgilityPack;
namespace Test
{
public partial class Form1 : Form
{
private List<Bet> Bets;
public Form1()
{
InitializeComponent();
Form1_Load_1();
dataGridView1.SelectionChanged += DataGridView1_SelectionChanged;
}
private Bet SelectedBet { get; set; }
private void DataGridView1_SelectionChanged(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows.Count > 0)
{
SelectedBet = (Bet) dataGridView1.SelectedRows[0].DataBoundItem;
if (SelectedBet.Odds.Count > 0)
{
textBox1.Text = SelectedBet.Odds[0];
textBox2.Text = SelectedBet.Odds[1];
textBox3.Text = SelectedBet.Odds[2];
}
}
}
private void LoadInfo()
{
var url = "http://www.betexplorer.com/soccer/australia/northern-nsw/results/";
var web = new HtmlWeb();
var doc = web.Load(url);
Bets = new List<Bet>();
// Lettura delle righe
var Rows = doc.DocumentNode.SelectNodes("//tr");
foreach (var row in Rows)
{
if (!row.GetAttributeValue("class", "").Contains("rtitle"))
{
if (string.IsNullOrEmpty(row.InnerText))
continue;
var rowBet = new Bet();
foreach (var node in row.ChildNodes)
{
var data_odd = node.GetAttributeValue("data-odd", "");
if (string.IsNullOrEmpty(data_odd))
{
if (node.GetAttributeValue("class", "").Contains("first-cell"))
{
rowBet.Match = node.InnerText.Trim();
var matchTeam = rowBet.Match.Split(new[] {'-'}, StringSplitOptions.RemoveEmptyEntries);
rowBet.Home = matchTeam[0];
rowBet.Host = matchTeam[1];
}
if (node.GetAttributeValue("class", "").Contains("result"))
{
rowBet.Result = node.InnerText.Trim();
var matchPoints = rowBet.Result.Split(new[] {':'}, StringSplitOptions.RemoveEmptyEntries);
int help;
if (int.TryParse(matchPoints[0], out help))
{
rowBet.HomePoints = help;
}
if (matchPoints.Length == 2 && int.TryParse(matchPoints[1], out help))
{
rowBet.HostPoints = help;
}
}
if (node.GetAttributeValue("class", "").Contains("last-cell"))
rowBet.Date = node.InnerText.Trim();
}
else
{
rowBet.Odds.Add(data_odd);
}
}
if (!string.IsNullOrEmpty(rowBet.Match))
Bets.Add(rowBet);
}
}
}
private void Form1_Load_1()
{
LoadInfo();
if (Bets.Count > 0)
{
SelectedBet = Bets[0];
dataGridView1.DataSource = Bets;
if (SelectedBet.Odds.Count > 0)
{
textBox1.Text = SelectedBet.Odds[0];
textBox2.Text = SelectedBet.Odds[1];
textBox3.Text = SelectedBet.Odds[2];
}
}
}
}
}
Bets class
using System;
using System.Collections.Generic;
namespace Test
{
class Bet
{
public string Match { get; set; }
public string Result { get; set; }
public List<string> Odds { get; set; }
public string Date { get; set; }
public string Home { get; set; }
public string Host { get; set; }
public int HomePoints { get; set; }
public int HostPoints { get; set; }
public Bet()
{
Odds = new List<string>();
}
public override string ToString()
{
String MatchInfo = String.Format("{0}: {1} -> {2}", Date, Match, Result);
String OddsInfo = String.Empty;
foreach (string d in Odds)
OddsInfo += " | " + d;
return MatchInfo + "\n" + OddsInfo;
}
}
}

Diplaying AVL Tree data in a GUI C#

Basically I have an AVL tree that stores instances of Country class. When I do an inorder traversal of the tree, I am able to see the country details correctly, however I wish to view and modify instances of the country class in a GUI. The issue I am having is I have no idea how to access the class data and display it in something like a listbox. Here is my Country class:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace International_Trading_Data
{
class Country : IComparable
{
public string countryName { get; set; }
public double gdp { get; set; }
public double inflation { get; set; }
public double tradeBalance { get; set; }
public int hdiRanking { get; set; }
public LinkedList<string> tradePartners { get; set; }
public string f;
public Country (){
}
public Country(string cname, double g, double i, double t, int h, LinkedList<string> tp)
{
this.countryName = cname;
this.gdp = g;
this.inflation = i;
this.tradeBalance = t;
this.hdiRanking = h;
this.tradePartners = tp;
}
public int CompareTo(object obj)
{
Country temp = (Country)obj;
return countryName.CompareTo(temp.countryName);
}
public override string ToString()
{
foreach (string i in tradePartners)
f += i+",";
return countryName+" "+gdp+" "+" "+inflation+" "+tradeBalance+" "+ hdiRanking+ " "+f;
}
}
}
`
This is where I create instances of the country class:
public void loadFile()
{
OpenFileDialog open = new OpenFileDialog();
open.Filter = "CSV Files (*.csv)|*.csv";
open.FilterIndex = 1;
open.Multiselect = true;
if (open.ShowDialog() == DialogResult.OK)
{
string selectedFilePath = open.FileName;
const int MAX_SIZE = 5000;
string[] allLines = new string[MAX_SIZE];
allLines = File.ReadAllLines(selectedFilePath);
foreach (string line in allLines)
{
if (line.StartsWith("Country"))
{
headers = line.Split(',');
}
else
{
string[] columns = line.Split(',');
LinkedList<string> tradePartners = new LinkedList<string>();
string[] partners = columns[5].Split('[', ']', ';');
foreach (string i in partners)
{
if (i != "")
{
tradePartners.AddLast(i);
}
}
countries.InsertItem(new Country(columns[0], Double.Parse(columns[1]),Double.Parse(columns[2]), Double.Parse(columns[3]) ,int.Parse(columns[4]),tradePartners));
}
}
Here is the code for my inorder traversal:
public void InOrder()
{
inOrder(root);
}
private void inOrder(Node<T> tree)
{
if (tree != null)
{
inOrder(tree.Left);
System.Diagnostics.Debug.WriteLine(tree.Data.ToString());
inOrder(tree.Right);
}
This code produces the following output for a few test countries:
Argentina 3 22.7 0.6 45 Brazil,Chile,
Australia 3.3 2.2 -5 2 China,Japan,New_Zealand,
Brazil 3 5.2 -2.2 84 Chile,Argentina,USA,
So I know that my classes are bieng stored correctly in the avl tree.

I am not sure what you are using as a data structure for your countries collection, but assuming its a List for now, you can do the following (NOTE: this sample is just to demonstrate displaying information on a UI for manipulation):
public Form1()
{
InitializeComponent();
List<Country> countries = new List<Country>() {
new Country() { countryName = "Mattopia" , gdp = 1500, inflation = 1.5, f="hi"},
new Country { countryName = "coffeebandit", gdp = 2000, inflation = 1.2, f="hey" }};
listBox1.DisplayMember = "countryName";
listBox1.DataSource = countries;
}
public class Country
{
public string countryName { get; set; }
public double gdp { get; set; }
public double inflation { get; set; }
public double tradeBalance { get; set; }
public int hdiRanking { get; set; }
public LinkedList<string> tradePartners { get; set; }
public string f;
}
Then, you can use the selected index changed event to populate your fields:
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
Country country = (Country)listBox1.SelectedValue;
//fill up all other GUI controls
textBox1.Text = country.f;
textBox2.Text = country.inflation.ToString();
}
And if you want to process text changes:
private void textBox1_TextChanged(object sender, EventArgs e)
{
Country country = (Country)listBox1.SelectedValue;
if (country != null)
{
country.f = textBox1.Text;
}
}
This will give you the following display:
This should demonstrate the basics of how to edit a class in a WinForms UI.
For more advanced examples, I would recommend using other Events to capture information as your needs change.