質問編集履歴
2
改善
test
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File without changes
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test
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@@ -38,116 +38,94 @@
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{
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public class ItemSet
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{
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// DisplayMemberとValueMemberにはプロパティで指定する仕組み
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public String ItemDisp { get; set; }
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public int ItemValue { get; set; }
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// プロパティをコンストラクタでセット
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public ItemSet(int v, String s)
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{
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ItemDisp = s;
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ItemValue = v;
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}
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}
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public Form1()
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{
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InitializeComponent();
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// ComboBox用データ作成 //ListでOK //IList インターフェイスまたは
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//IListSource インターフェイスを実装する、DataSet または Array などのオブジェクト。
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List<ItemSet> src = new List<ItemSet>();
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src.Add(new ItemSet(1, "Number1"));/// 1つでItem１つ分となる
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src.Add(new ItemSet(2, "Number2"));
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src.Add(new ItemSet(3, "Number3"));
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// ComboBoxに表示と値をセット
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comboBox1.DataSource = src;
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comboBox1.DisplayMember = "ItemDisp";
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comboBox1.ValueMember = "ItemValue";
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// 初期値セット
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comboBox1.SelectedIndex = 0;
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comboBox1_SelectedIndexChanged(null, null);
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}
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private void
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private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
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{
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// labelに現在コンボ選択の内容を表示
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ItemSet tmp = ((ItemSet)comboBox1.SelectedItem);//表示名はキャストして取りだす
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labelDisplay.Text = tmp.ItemDisp;
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labelValue.Text = comboBox1.SelectedValue.ToString();//値はそのまま取りだせる
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}
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}
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class Sample
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{
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[STAThread]
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public static void Main()
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{
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Application.Run(new MainForm());
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}
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}
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class MainForm : Form
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{
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private ComboBox comboBox = new ComboBox();//コンボボックス
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private Label lb = new Label(); //ラベル
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private Button bt = new Button(); //ボタン
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public MainForm()
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{
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//値の設定
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comboBox.Items.Add("晴れ");
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comboBox.Items.Add("曇り");
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comboBox.Items.Add("雨");
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lb.Text = "";
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lb.AutoSize = true;
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lb.Top = comboBox.Bottom;
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bt.Text = "値を取得";
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bt.AutoSize = true;
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bt.Top = lb.Bottom;
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this.Controls.Add(comboBox);
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this.Controls.Add(lb);
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this.Controls.Add(bt);
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bt.Click += new EventHandler(bt_Click);
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}
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public void bt_Click(Object sender, EventArgs e)
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{
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lb.Text = "";
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//値を取得
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lb.Text += comboBox.SelectedItem.ToString();
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}
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}
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}
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```
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1
編集
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -1,14 +1,12 @@
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1
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-
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1
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+
C#
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2
2
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3
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4
4
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5
5
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このようにコード書いてみたのですが動きません。
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-
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```
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コード
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-
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```
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10
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@@ -151,3 +149,5 @@
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151
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}
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|
152
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153
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```
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