{"id":318,"date":"2009-09-26T15:25:03","date_gmt":"2009-09-26T06:25:03","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=318"},"modified":"2009-09-26T18:34:17","modified_gmt":"2009-09-26T09:34:17","slug":"silverlight-mvvm-%e3%83%a2%e3%83%87%e3%83%ab%e3%81%a7-datagrid-%e3%82%92%e3%83%90%e3%82%a4%e3%83%b3%e3%83%89%e3%81%ae%e8%90%bd%e3%81%a8%e3%81%97%e7%a9%b4","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/318","title":{"rendered":"Silverlight + MVVM \u30e2\u30c7\u30eb\u3067 DataGrid \u3092\u30d0\u30a4\u30f3\u30c9\u306e\u843d\u3068\u3057\u7a74"},"content":{"rendered":"

\u52d5\u7684\u30d0\u30a4\u30f3\u30c9\u306e\u8a71\u3092\u66f8\u3053\u3046\u3068\u601d\u3063\u305f\u306e\u3067\u3059\u304c\u3001DataGrid \u306e\u30d0\u30a4\u30f3\u30c9\u306e\u843d\u3068\u3057\u7a74\u306e\u4ef6\u3092\u66f8\u304f\u3053\u3068\u306b\u3057\u307e\u3059\u3002
\n\u591a\u5206\u3001\u691c\u8a3c\u7d50\u679c\u3092\u5177\u4f53\u7684\u306b\u307f\u308b\u307b\u3046\u304c\u300c\u4f55\u6545\u3060\u3081\u306a\u306e\u304b\uff1f\u300d\u304c\u308f\u304b\u308a\u3084\u3059\u3044\u306e\u3067\u3002<\/p>\n

\u5148\u306b\u6ce8\u610f\u3057\u3066\u304a\u304d\u307e\u3059\u304c\u3001\u3053\u3053\u306b\u66f8\u304f\u306e\u306f\u300c\u3084\u3063\u3066\u306f\u3044\u3051\u306a\u3044\u300d\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n

\u3055\u3066\u3001ItemSource \u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u30d0\u30a4\u30f3\u30c9\u3059\u308b\u5834\u5408\u306f\u3001\u524d\u56de\u66f8\u3044\u305f\u3088\u3046\u306b\u5373\u6642\u5b9f\u884c\u304c\u884c\u308f\u308c\u307e\u3059\u3002
\n\u3053\u308c\u3092\u300c\u697d\u3060\u304b\u3089\u300d\u3068\u3044\u3046\u7406\u7531\u3067\u3001DataContext\u3092\u4f7f\u3063\u3066\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u81ea\u8eab\u306b\u30d0\u30a4\u30f3\u30c9\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

xaml \u30d5\u30a1\u30a4\u30eb\u3092\u6b21\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n

\r\n<Grid x:Name=&quot;LayoutRoot&quot; Background=&quot;White&quot;>\r\n<StackPanel>\r\n    <dt:DataGrid Name=&quot;DGrid&quot; Width=&quot;300&quot; Height=&quot;200&quot;\r\n                 DataContext=&quot;{Binding DGridData, Mode=TwoWay}&quot; \/>\r\n    <Button Name=&quot;BtnSearch&quot; Width=&quot;100&quot; Content=&quot;\u691c\u7d22&quot; Click=&quot;BtnSearch_Click&quot;\/>\r\n<\/StackPanel>\r\n<\/Grid>\r\n<\/pre>\n
 DataContext=”{Binding DGridData, Mode=TwoWay}” \u3057\u3066\u3044\u308b\u3068\u3053\u308d\u304c\u3001\u30d0\u30a4\u30f3\u30c9\u3067\u3059\u3002<\/p>\n
\u30e2\u30c7\u30eb\u30af\u30e9\u30b9\u306f\u3053\u3093\u306a\u611f\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\r\n\/\/\/ <summary>\r\n\/\/\/ \u30e2\u30c7\u30eb\u30af\u30e9\u30b9\r\n\/\/\/ <\/summary>\r\npublic class ModelGrid2 : INotifyPropertyChanged\r\n{\r\n\/\/\/ <summary>\r\n\/\/\/ \u30b0\u30ea\u30c3\u30c9\u306e\u30c7\u30fc\u30bf\r\n\/\/\/ <\/summary>\r\nprivate DataGrid _DGridData = new DataGrid();\r\npublic DataGrid DGridData\r\n{\r\n    get { return _DGridData; }\r\n    set\r\n    {\r\n        if (_DGridData != value)\r\n        {\r\n            _DGridData = value;\r\n            OnPropertyChanged(&quot;DGridData&quot;);\r\n        }\r\n    }\r\n}\r\n\r\n#region INotifyPropertyChanged \u30e1\u30f3\u30d0\r\n\/\/\/ <summary>\r\n\/\/\/ \u30d7\u30ed\u30d1\u30c6\u30a3\u5909\u66f4\u6642\u306e\u30a4\u30d9\u30f3\u30c8\r\n\/\/\/ <\/summary>\r\npublic event PropertyChangedEventHandler PropertyChanged;\r\nprotected virtual void OnPropertyChanged(PropertyChangedEventArgs e)\r\n{\r\n    if (PropertyChanged != null)\r\n        PropertyChanged(this, e);\r\n}\r\nprotected virtual void OnPropertyChanged(string name)\r\n{\r\n    if (PropertyChanged != null)\r\n        PropertyChanged(this, new PropertyChangedEventArgs(name));\r\n}\r\n#endregion\r\n}\r\n<\/pre>\n
\u30c7\u30fc\u30bf\u30b0\u30ea\u30c3\u30c9\u672c\u4f53\u306b\u5bfe\u3057\u3066\u30d0\u30a4\u30f3\u30c9\u3059\u308b\u306e\u3067\u3001<\/p>\n
public DataGrid DGridData<\/p>\n
\u306e\u3088\u3046\u306b\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u66f8\u304d\u307e\u3059\u3002\u30d0\u30a4\u30f3\u30c9\u540d\u306f\u300cDGridData\u300d\u3067\u3059\u3002
\n\u691c\u7d22\u30dc\u30bf\u30f3\u3092\u62bc\u4e0b\u3057\u305f\u3068\u304d\u306e\u51e6\u7406\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u30e2\u30c7\u30eb\u30af\u30e9\u30b9\u306e\u307b\u3046\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n
\r\nprivate void BtnSearch_Click(object sender, RoutedEventArgs e)\r\n{\r\n    \/\/ \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\r\n    List<Product> list = new List<Product>();\r\n    list.Add(new Product() { ID = &quot;001&quot;, Name = &quot;Silverlight 3&quot; });\r\n    list.Add(new Product() { ID = &quot;002&quot;, Name = &quot;Visual Studio 2010&quot; });\r\n    list.Add(new Product() { ID = &quot;003&quot;, Name = &quot;Expression Bend 3&quot; });\r\n    list.Add(new Product() { ID = &quot;004&quot;, Name = &quot;New Application 1&quot; });\r\n    list.Add(new Product() { ID = &quot;005&quot;, Name = &quot;New Application 2&quot; });\r\n    list.Add(new Product() { ID = &quot;006&quot;, Name = &quot;New Application 3&quot; });\r\n    \/\/ \u30b0\u30ea\u30c3\u30c9\u306b\u8a2d\u5b9a(\u30d0\u30a4\u30f3\u30c9\u7248)\r\n    MyModel.DGridData.ItemsSource = list;\r\n}\r\n<\/pre>\n
\u5148\u307b\u3069\u30d0\u30a4\u30f3\u30c9\u3057\u305f\u306e\u304c\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u81ea\u4f53\u306a\u306e\u3067\u3001<\/p>\n
    MyModel.DGridData.ItemsSource = list;<\/p>\n
\u306a\u5f62\u3067\u30a2\u30af\u30bb\u30b9\u3092\u3057\u307e\u3059\u3002
\n\u4e00\u898b\u3001\u3053\u308c\u3067\u5341\u5206\u52d5\u304f\u3088\u3046\u306a\u6c17\u3082\u3057\u307e\u3059\u304c\u3001\u52d5\u304d\u307e\u305b\u3093\u3002
\n\u753b\u9762\u4e0a\u3067\u52d5\u304b\u3057\u3066\u3082\u3001\u30c7\u30fc\u30bf\u30b0\u30ea\u30c3\u30c9\u306e\u5185\u5bb9\u304c\u66f4\u65b0\u3055\u308c\u307e\u305b\u3093\u3002
\n\u307e\u305f\u6b21\u306e\u3088\u3046\u306aUnitTest\u3067\u3082\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\r\n[TestMethod]\r\npublic void TestGridData()\r\n{\r\n    ModelGrid2 model = _page.MyModel;\r\n    Assert.AreEqual(3, ((IList)_page.DGrid.ItemsSource).Count);\r\n\r\n    List<Product> list = new List<Product>();\r\n    list.Add(new Product() { ID = &quot;001&quot;, Name = &quot;Silverlight 3&quot; });\r\n    list.Add(new Product() { ID = &quot;002&quot;, Name = &quot;Visual Studio 2010&quot; });\r\n    list.Add(new Product() { ID = &quot;003&quot;, Name = &quot;Expression Bend 3&quot; });\r\n    list.Add(new Product() { ID = &quot;004&quot;, Name = &quot;New Application 1&quot; });\r\n    list.Add(new Product() { ID = &quot;005&quot;, Name = &quot;New Application 2&quot; });\r\n    list.Add(new Product() { ID = &quot;006&quot;, Name = &quot;New Application 3&quot; });\r\n    model.DGridData.ItemsSource = list;\r\n\r\n    Assert.AreEqual(6, ((IList)model.DGridData.ItemsSource).Count);\r\n    \/\/ \u2193\u306f\u30d0\u30a4\u30f3\u30c9\u3055\u308c\u305a\u306b\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002\r\n    \/\/ Assert.AreEqual(6, ((IList)_page.DGrid.ItemsSource).Count);\r\n}\r\n<\/pre>\n
\u6700\u5f8c\u306e Assert.AreEqual \u306e\u3068\u3053\u308d\u3067\u3001((IList)_page.DGrid.ItemsSource).Count \u306f 3 \u3092\u8fd4\u3057\u307e\u3059\u3002
\n\u3053\u308c\u306f\u65e2\u306b\u30c7\u30fc\u30bf\u30b0\u30ea\u30c3\u30c9\u306b\u8a2d\u5b9a\u3057\u305f\u30c7\u30fc\u30bf\u6570\u3067\u3001\u30d0\u30a4\u30f3\u30c9\u304c\u6b63\u5e38\u306b\u50cd\u3044\u3066\u3044\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002<\/p>\n
\u3067\u3059\u304c\u3001\u3053\u308c\u306f\u30d0\u30a4\u30f3\u30c9\u304c\u50cd\u3044\u3066\u3044\u306a\u3044\u306e\u3067\u306f\u306a\u304f\u3066\u3001\u30d0\u30a4\u30f3\u30c9\u306e\u4ed5\u65b9\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002
\n\u30d0\u30a4\u30f3\u30c9\u306f\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u81ea\u8eab\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u81ea\u4f53\u306e\u5909\u66f4\u306f\u901a\u77e5\u3057\u307e\u3059\u304c\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304c\u6301\u3064\u5404\u7a2e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5909\u66f4\u306b\u306f\u5fdc\u7b54\u3057\u307e\u305b\u3093\u3002
\n\u901a\u77e5\u3057\u306a\u3044\u3082\u306e\u3060\u304b\u3089\u3001\u30c7\u30fc\u30bf\u30b0\u30ea\u30c3\u30c9\u306e\u753b\u9762\u306e\u66f4\u65b0\u3082\u884c\u308f\u308c\u307e\u305b\u3093\u3002ItemsSource\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u30d0\u30a4\u30f3\u30c9\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u6b63\u5e38\u306b\u753b\u9762\u304c\u66f4\u65b0\u3055\u308c\u307e\u3059\u3002
\n\u3053\u308c\u3092\u901a\u77e5\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30e2\u30c7\u30eb\u30af\u30e9\u30b9\u306eItemsSource\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u307b\u3046\u3092override\u3057\u3066\u3001ObservableCollection\u3092\u4f7f\u3063\u3066\u3001\u305d\u306e\u901a\u77e5\u3092\u53d7\u3051\u305f\u3082\u306e\u3092\u3001\u30d0\u30a4\u30f3\u30c9\u5148\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306b\u66f4\u306b\u901a\u77e5\u3059\u308b\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u51e6\u7406\u3092\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u7121\u99c4\u3067\u3059\u3002\u3053\u3093\u306a\u5909\u306a\u3053\u3068\u3092\u3057\u306a\u304f\u3066\u306f\u3044\u3051\u306a\u3044\u306e\u306f\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u81ea\u4f53\u306b\u30d0\u30a4\u30f3\u30c9\u3092\u3057\u305f\u305f\u3081\u3067\u3042\u3063\u3066\u3001\u3084\u3063\u3066\u306f\u3044\u3051\u306a\u3044\u3053\u3068\u306a\u306e\u3067\u3059\u3002\u307e\u3041\u3001\u3084\u3063\u3066\u3082\u3044\u3044\u3051\u3069\u3001\u75db\u3044\u76ee\u306b\u4f1a\u3046\u3068\u3044\u3046\u4f59\u8a08\u306b\u3084\u3084\u3053\u3057\u3044\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u3068\u3044\u3046\u308f\u3051\u3067\u3001\u300cDataContext\u300d\u3092\u4f7f\u3063\u3066\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3092\u76f4\u63a5\u30d0\u30a4\u30f3\u30c9\u3057\u3066\u3044\u306f\u3044\u3051\u307e\u305b\u3093\u3001\u3068\u3044\u3046\u8a71\u3067\u3059\u3002<\/p>\n
\u3055\u3066\u3001\u4f59\u8ac7\u3067\u3059\u304c\u3053\u3053\u306e DataContext \u5c5e\u6027\u306f\u4f55\u306b\u4f7f\u3046\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n
\u5b9f\u306f\u5148\u306e PageGrid \u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067 DataContext \u306b\u30e2\u30c7\u30eb\u30af\u30e9\u30b9\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3064\u307e\u308a\u3001DataContext \u306f\u30e2\u30c7\u30eb\u306e\u5143\u30cd\u30bf\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\uff08Text\u30d7\u30ed\u30d1\u30c6\u30a3\u3084ItemsSource\u30d7\u30ed\u30d1\u30c6\u30a3\u306a\u3069\uff09\u306b\u30e2\u30c7\u30eb\u306e\u5404\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u30d0\u30a4\u30f3\u30c9\u3059\u308b\u306e\u3067\u3059\u3002<\/p>\n
\u4f8b\u3067\u306f\u5143\u306e\u30da\u30fc\u30b8\u30af\u30e9\u30b9\u3067 DataContext \u3092\u8a2d\u5b9a\u3057\u307e\u3057\u305f\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306b\u30c7\u30fc\u30bf\/\u30e2\u30c7\u30eb\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u30da\u30fc\u30b8\u30af\u30e9\u30b9\u306f MyModel \u30af\u30e9\u30b9\u3092\u4f7f\u3044\u3001\u30c7\u30fc\u30bf\u30b0\u30ea\u30c3\u30c9\u306f MyGirdModel \u3092\u4f7f\u3046\u3068\u3044\u3046\u4f7f\u3044\u5206\u3051\u304c\u53ef\u80fd\u3067\u3059\u3002
\n\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u306b\u306f\u3001DataGrid \u306e DataContext \u306b\u76f4\u63a5\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
\r\n<Grid x:Name=&quot;LayoutRoot&quot; Background=&quot;White&quot;>\r\n<StackPanel>\r\n    <dt:DataGrid Name=&quot;DGrid&quot; Width=&quot;300&quot; Height=&quot;200&quot;\r\n                 DataContext=&quot;{Binding DataMyModel, Mode=TwoWay}&quot;\r\n                 ItemsSource=&quot;{Binding Items, Mode=TwoWay}&quot; \/>\r\n    <Button Name=&quot;BtnSearch&quot; Width=&quot;100&quot; Content=&quot;\u691c\u7d22&quot; Click=&quot;BtnSearch_Click&quot;\/>\r\n<\/StackPanel>\r\n<\/Grid>\r\n<\/pre>\n
\u3053\u306e\u3088\u3046\u306b\u3001DataContext \u30d7\u30ed\u30d1\u30c6\u30a3\u3068 ItemsSource \u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u30d0\u30a4\u30f3\u30c9\u3092\u884c\u3044\u307e\u3059\u3002DataContext \u306e\u307b\u3046\u306f\u4e00\u5ea6\u8a2d\u5b9a\u3057\u305f\u30e2\u30c7\u30eb\u30af\u30e9\u30b9\u81ea\u8eab\u3092\u5207\u308a\u66ff\u3048\u306a\u3044\u306e\u3067\u3042\u308c\u3070\u3001Mode \u3092 TwoWay \u306b\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n
\u3053\u306e\u3042\u305f\u308a\u3001ASP.NET \u306e\u30c7\u30fc\u30bf\u30d0\u30a4\u30f3\u30c9\u3068\u540c\u3058\u306a\u306e\u3067\u5408\u308f\u305b\u3066\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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