public MainForm()
{
InitializeComponent();
//Load in the list of elements
var fileText = File.ReadAllText("elements.txt");
var strings = Regex.Split(fileText, @"[^\S-']").ToList();
strings.RemoveAll(q => q.Equals(""));
for (int i = 0; i < strings.Count() - 3; i += 4)
{
elementList.Add(new Element(int.Parse(strings[i]), strings[i + 1], strings[i + 2], double.Parse(strings[i + 3])));
}
//Default View
UI_dataGridView_Chemicals.DataSource = BindingSourceMethods.SortByElementName(elementList);
}
private void UI_textBox_ChemFormula_TextChanged(object sender, EventArgs e)
{
//clear the element/value collection
elementDict.Clear();
//if the textbox is empty, show the defaults
if (UI_textBox_ChemFormula.Text.Length.Equals(0))
{
UI_dataGridView_Chemicals.DataSource = BindingSourceMethods.SortByElementName(elementList);
//reset the information label
UI_label_MassCalculation.Text = "0 g/mol";
//reset the error indicator
UI_label_MassCalculation.BackColor = Color.White;
return;
}
try
{
//group the input string by regex pattern
MatchCollection matches = Regex.Matches(UI_textBox_ChemFormula.Text.Trim(), pat);
//iterate through all regex matches
foreach (Match m in matches)
{
//split the matches
string[] parts = Regex.Split(m.Groups[0].Value, @"(?=\d)(?<!\d)");
//populate the dictionary with element names and element values
switch (parts.Length)
{
case 1:
if (!elementDict.ContainsKey(parts[0]))
{
elementDict.Add(parts[0], 1);
}
else
{
elementDict[parts[0]]++;
}
break;
case 2:
if (!elementDict.ContainsKey(parts[0]))
{
elementDict.Add(parts[0], Convert.ToInt32(parts[1]));
}
else
{
elementDict[parts[0]] += Convert.ToInt32(parts[1]);
}
break;
default:
break;
}
}
//determine the accuracy of input:
bool found = false;
//check if each input entry is in fact an element in the table
foreach (KeyValuePair <string, int> kvp in elementDict)
{
found = false;
foreach (Element element in elementList)
{
if (kvp.Key.Equals(element.Symbol))
{
found = true;
break;
}
}
if (!found)
{
break;
}
}
//concatenate all input regex matches into a string
string matchString = string.Join("", matches.Cast <Match>().Select(m => m.Value).ToArray());
//compare the length of the input to the length of the concatenated match string
if (UI_textBox_ChemFormula.TextLength.Equals(matchString.Length) && found)
{
UI_label_MassCalculation.BackColor = Color.LightGreen;
}
else
{
UI_label_MassCalculation.BackColor = Color.PaleVioletRed;
}
}
catch (Exception regexE)
{
Console.WriteLine(regexE.ToString());
}
//Update for the GridView will be down here after all the checks
UI_dataGridView_Chemicals.DataSource = BindingSourceMethods.GridTextUpdate(elementDict, elementList);
//Update for the label to view the total molar mass that was printed on the textbox
UI_label_MassCalculation.Text = BindingSourceMethods.MolarMassCalculation(elementDict, elementList).ToString("f3") + " g/mol";
}
private void UI_button_SortAtomic_Click(object sender, EventArgs e)
{
UI_dataGridView_Chemicals.DataSource = BindingSourceMethods.SortByAtomicNumber(elementList);
}
private void UI_button_SingleCharacter_Click(object sender, EventArgs e)
{
UI_dataGridView_Chemicals.DataSource = BindingSourceMethods.SortByOneSymbol(elementList);
}