回答編集履歴
4
111
answer
CHANGED
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@@ -1,5 +1,5 @@
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1
1
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こんな感じでしょうか
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2
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-
CollectionViewSource.Filterを使います
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2
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+
CollectionViewSource.View.Filterを使います
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3
3
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4
4
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```XAML
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5
5
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<Window x:Class="WpfApplication1.MainWindow"
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3
コメント
answer
CHANGED
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@@ -1,4 +1,5 @@
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1
1
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こんな感じでしょうか
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2
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+
CollectionViewSource.Filterを使います
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2
3
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3
4
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```XAML
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4
5
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<Window x:Class="WpfApplication1.MainWindow"
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2
アイテム
answer
CHANGED
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@@ -1,2 +1,61 @@
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1
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-
こ
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1
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+
こんな感じでしょうか
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2
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3
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```XAML
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4
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<Window x:Class="WpfApplication1.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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6
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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7
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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8
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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9
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xmlns:local="clr-namespace:WpfApplication30"
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10
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mc:Ignorable="d"
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Title="MainWindow" Height="350" Width="525">
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12
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<Grid>
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13
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<ComboBox x:Name="comboBox" HorizontalAlignment="Left" VerticalAlignment="Top" Width="120" DisplayMemberPath="Name" SelectedValuePath="Id"/>
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</Grid>
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</Window>
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```
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17
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18
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```C#
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19
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using System.Collections.ObjectModel;
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20
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using System.Windows;
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21
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using System.Windows.Data;
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22
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23
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namespace WpfApplication1
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{
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25
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/// <summary>
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26
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/// MainWindow.xaml の相互作用ロジック
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/// </summary>
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28
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public partial class MainWindow : Window
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29
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{
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30
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private class Hoge
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31
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{
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32
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public int ID { get; set; }
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33
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public string Name { get; set; }
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34
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}
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35
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private ObservableCollection<Hoge> HogeItems { get; set; }
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37
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private CollectionViewSource HogeViewSource { get; set; }
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39
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public MainWindow()
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40
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{
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InitializeComponent();
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42
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43
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this.HogeItems = new ObservableCollection<Hoge>();
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44
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this.HogeViewSource = new CollectionViewSource() { Source = this.HogeItems };
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2
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comboBox.
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45
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+
this.comboBox.ItemsSource = this.HogeViewSource.View;
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46
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47
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this.HogeItems.Add(new Hoge { ID = 1, Name = "A" });
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48
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this.HogeItems.Add(new Hoge { ID = 2, Name = "B" });
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49
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this.HogeItems.Add(new Hoge { ID = 3, Name = "C" });
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50
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this.HogeItems.Add(new Hoge { ID = 4, Name = "D" });
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51
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this.HogeItems.Add(new Hoge { ID = 5, Name = "E" });
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52
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53
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this.HogeViewSource.View.Filter = (n) =>
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54
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{
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55
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var item = n as Hoge;
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56
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return item.ID > 2;
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57
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};
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58
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}
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59
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}
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60
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}
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61
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```
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1
非表示
answer
CHANGED
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@@ -1,65 +1,2 @@
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1
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-
こ
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1
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+
これでしょうか
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|
2
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-
CollectionViewSourceを使います
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3
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-
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4
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-
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5
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-
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6
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-
```XAML
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7
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<Window x:Class="WpfApplication1.MainWindow"
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8
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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9
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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10
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-
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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11
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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12
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-
xmlns:local="clr-namespace:WpfApplication30"
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13
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-
mc:Ignorable="d"
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14
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Title="MainWindow" Height="350" Width="525">
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15
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<Grid>
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16
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<ComboBox x:Name="comboBox" HorizontalAlignment="Left" VerticalAlignment="Top" Width="120" DisplayMemberPath="Name" SelectedValuePath="Id"/>
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</Grid>
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</Window>
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19
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```
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20
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-
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21
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```C#
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22
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using System.Collections.ObjectModel;
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23
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using System.Windows;
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24
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using System.Windows.Data;
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25
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-
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26
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namespace WpfApplication1
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27
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-
{
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28
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/// <summary>
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29
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/// MainWindow.xaml の相互作用ロジック
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30
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/// </summary>
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31
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-
public partial class MainWindow : Window
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32
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-
{
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33
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private class Hoge
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34
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{
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35
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public int ID { get; set; }
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36
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public string Name { get; set; }
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37
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}
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38
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-
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39
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private ObservableCollection<Hoge> HogeItems { get; set; }
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40
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private CollectionViewSource HogeViewSource { get; set; }
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41
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-
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42
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public MainWindow()
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43
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{
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44
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InitializeComponent();
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45
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-
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46
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this.HogeItems = new ObservableCollection<Hoge>();
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47
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this.HogeViewSource = new CollectionViewSource() { Source = this.HogeItems };
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48
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-
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2
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+
comboBox.Visibility = Visibility.Collapsed;
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49
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-
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50
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this.HogeItems.Add(new Hoge { ID = 1, Name = "A" });
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51
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this.HogeItems.Add(new Hoge { ID = 2, Name = "B" });
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52
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this.HogeItems.Add(new Hoge { ID = 3, Name = "C" });
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53
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this.HogeItems.Add(new Hoge { ID = 4, Name = "D" });
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54
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this.HogeItems.Add(new Hoge { ID = 5, Name = "E" });
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55
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-
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56
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this.HogeViewSource.View.Filter = (n) =>
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57
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{
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58
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var item = n as Hoge;
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59
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return item.ID > 2;
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60
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};
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61
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}
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62
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}
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63
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}
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64
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-
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65
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```
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