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a\u3002        (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9eC\uff03\u306e\u6b21\u306e\u4f8b\u306f\u3001\u30b3\u30f3\u30dc\u30dc\u30c3\u30af\u30b9\u3068\u30c6\u30ad\u30b9\u30c8\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u5099\u3048\u305f\u30e1\u30a4\u30f3\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u5b9f\u88c5\u3068\u3001\u9078\u629e\u30a4\u30d9\u30f3\u30c8\u3068\u30a4\u30d9\u30f3\u30c8\u6cbb\u7642\u30eb\u30fc\u30c1\u30f3\u306e\u30ea\u30f3\u30af\u3092\u793a\u3057\u3066\u3044\u307e\u3059\uff08\u30a4\u30d9\u30f3\u30c8\u3092\u53c2\u7167\uff09\u3002 [2] \u4f7f\u7528  System.Windows.Forms ;  \u516c\u5171  \u30af\u30e9\u30b9  MainForm  \uff1a  \u30b7\u30b9\u30c6\u30e0 \u3002 \u30a6\u30a3\u30f3\u30c9\u30a6\u30ba \u3002 \u30d5\u30a9\u30fc\u30e0 \u3002 \u5f62\u72b6  {   \/\/ MainForm\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3002   \u516c\u5171  MainForm \uff08\uff09  \uff1a  \u30d9\u30fc\u30b9 \uff08\uff09   {   InitialIzeComboBox \uff08\uff09;   initializetextbox \uff08\uff09;   }  \t\/\/ Startet die Anwendung und erzeugt das MainForm durch Aufruf des Konstruktors.     public static void Main()    {        Application.Run(new MainForm());    }    internal System.Windows.Forms.TextBox personTextBox;    \/\/ Initialisiert das Textfeld.    private void InitializeTextBox()    {\t\tpersonTextBox = new System.Windows.Forms.TextBox();\t\tpersonTextBox.ScrollBars = ScrollBars.Vertical;\t\tpersonTextBox.Location = new System.Drawing.Point(50, 25);\t\tpersonTextBox.Size = new System.Drawing.Size(200, 100);\t\tpersonTextBox.Text = \"Name und Anzahl der Verkommen:\";\t\tpersonTextBox.Multiline = true; \/\/ Legt fest, dass die Textfeld mehrere Zeilen haben kann und Zeilenumbr\u00fcche erm\u00f6glicht\t\tControls.Add(personTextBox);    }    internal System.Windows.Forms.ComboBox personsComboBox;    \/\/ Initialisiert die Combobox und f\u00fcgt ein Array vom Typ string hinzu.    private void InitializeComboBox()    {        personsComboBox = new System.Windows.Forms.ComboBox();        string[] personen = new string[]{\"Hamilton, David\", \"Hensien, Kari\",                \"Hammond, Maria\", \"Harris, Keith\", \"Henshaw, Jeff D.\",                \"Hanson, Mark\", \"Harnpadoungsataya, Sariya\",                \"Harrington, Mark\", \"Harris, Keith\", \"Hartwig, Doris\",                \"Harui, Roger\", \"Hassall, Mark\", \"Hasselberg, Jonas\",                \"Harnpadoungsataya, Sariya\", \"Henshaw, Jeff D.\",                \"Henshaw, Jeff D.\", \"Hensien, Kari\", \"Harris, Keith\",                \"Henshaw, Jeff D.\", \"Hensien, Kari\", \"Hasselberg, Jonas\",                \"Harrington, Mark\", \"Hedlund, Magnus\", \"Hay, Jeff\",                \"Heidepriem, Brandon D.\"};        personsComboBox.Items.AddRange(personen);        personsComboBox.Location = new System.Drawing.Point(50, 150);        personsComboBox.DropDownStyle = ComboBoxStyle.DropDownList;        personsComboBox.Size = new System.Drawing.Size(200, 100);        personsComboBox.TabIndex = 0;        Controls.Add(personsComboBox);        \/\/ Verkn\u00fcpft die Ereignisbehandlungsmethode mit dem Auswahlereignis SelectedIndexChanged der Combobox.        personsComboBox.SelectedIndexChanged += new System.EventHandler(personsComboBox_SelectedIndexChanged);    }\t\/\/ Diese Methode wird aufgerufen, wenn der Benutzer die Auswahl der Combobox \u00e4ndert.\t\/\/ Sie sucht alle Vorkommen des Namens der Person im Array und gibt den Namen und die Anzahl der Vorkommen im Textfeld aus.    private void personsComboBox_SelectedIndexChanged(object sender, System.EventArgs e)    {        string selectedName = (string) personsComboBox.SelectedItem;        int numberOfOccurences = 0;        int index = -1;        \/\/ Ruft die Methode FindStringExact auf, um das erste Vorkommen in der Liste zu finden.        index = personsComboBox.FindStringExact(selectedName);\t\t\/\/ Entfernt den gefundenen Namen und erh\u00f6ht die Anzahl der gefundenen Namen.\t\t\/\/ Ruft dann die Methode FindStringExact erneut auf und \u00fcbergibt den Index des aktuell gefundenen Elements, damit die Suche dort beginnt statt am Anfang der Liste.\t\twhile (index != -1)        {            personsComboBox.Items.RemoveAt(index);            numberOfOccurences += 1;            index = personsComboBox.FindStringExact(selectedName, index);        }        \/\/ Update the text in personTextBox.        personTextBox.Text = personTextBox.Text + \"rn\" + selectedName + \": \" + numberOfOccurences;    }}     (adsbygoogle = window.adsbygoogle || 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