質問編集履歴
2
コードの修正
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@@ -175,28 +175,7 @@
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private RelayCommand _chopCommand;
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#endregion
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}
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-
}
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public class Person : ObservableCollection<Person>
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{
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public Person(){}
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public Person(string name)
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{
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Name = name;
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}
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private string name;
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public string Name
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{
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get { return name; }
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set { name = value; }
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}
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private Person children;
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public Person Children
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{
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get { return children; }
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set { children = value; }
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}
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}
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}
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1
コードの修正
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@@ -18,7 +18,7 @@
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を書くことで選択項目を削除するつもりでした。
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###該当のソースコード
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-
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+
TreeViewAddRemoveViewプロジェクト
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```ここに言語を入力
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MainWindow.xaml
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------------------------------------------
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@@ -32,7 +32,7 @@
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<RowDefinition Height="20" />
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</Grid.RowDefinitions>
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<TreeView Name="treeview" Grid.Row="0" ItemsSource="{Binding People}">
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<TreeView Name="treeview" Grid.Row="0" ItemsSource="{Binding TreeObject.People}">
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<TreeView.ItemTemplate>
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<HierarchicalDataTemplate ItemsSource="{Binding Children}">
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<TextBlock Text="{Binding Name}" />
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@@ -40,7 +40,7 @@
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</TreeView.ItemTemplate>
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</TreeView>
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<Button Grid.Row="1" Name="button" Content="RemoveButton" Command="{Binding
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<Button Grid.Row="1" Name="button" Content="RemoveButton" Command="{Binding Person.ChopCommand}" />
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</Grid>
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</Window>
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```
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@@ -64,57 +64,118 @@
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}
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```
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TreeViewAddRemoveViewModelプロジェクト
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```
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MainWindowViewModel.cs
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--------------------------------------------
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using
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using GalaSoft.MvvmLight;
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using
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using GalaSoft.MvvmLight.Command;
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using System.Collections.ObjectModel;
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namespace TreeAddRemoveViewModel
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{
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public class MainWindowViewModel
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public class MainWindowViewModel: ViewModelBase
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{
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public TreeObject TreeObject { get; private set; }
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public Person Person { get; private set; }
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public MainWindowViewModel()
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{
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TreeObject = new TreeObject();
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Person = new Person();
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}
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}
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public class TreeObject : ViewModelBase
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{
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private ObservableCollection<Person> people;
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public ObservableCollection<Person> People
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{
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get { return people; }
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set { people = value; }
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}
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private Person selectedPerson = null;
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public Person SelectedPerson
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{
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get { return selectedPerson; }
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set{ selectedPerson = value; }
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}
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public
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public TreeObject()
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{
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var p = new Person()
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{
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Children =
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{
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-
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new Person("Human01")
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{
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Children=new Person
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{
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Children =
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{
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new Person("Human02"),
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-
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new Person("Human03")
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}
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}
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}
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};
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p.SetParent();
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People = p.Children;
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}
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-
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}
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-
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public class Person : ViewModelBase
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{
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public Person() { }
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public
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public Person(string name)
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{
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Name = name;
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}
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private
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private string name;
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public string Name
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{
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get { return name; }
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set { name = value; }
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}
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public Person Parent { get; set; }
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private ObservableCollection<Person> children = new ObservableCollection<Person>();
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public ObservableCollection<Person> Children
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{
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get { return children; }
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set { children = value; }
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}
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+
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/// <summary>
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/// 親子関係の設定
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/// </summary>
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public void SetParent()
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{
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foreach (var item in Children)
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{
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item.Parent = this;
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item.SetParent();
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}
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}
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+
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public void AddChild(Person p)
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{
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this.Children.Add(p);
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p.Parent = this;
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}
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+
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private void chop()
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{
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if(this.Parent != null)
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{
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this.Parent.Children.Remove(this);
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}
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//this.Parent?.Children.Remove(this);
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}
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167
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#region remove Command
|
|
168
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+
/// <summary>
|
|
169
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+
/// Gets the remove.
|
|
170
|
+
/// </summary>
|
|
171
|
+
public RelayCommand ChopCommand
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|
172
|
+
{
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173
|
+
get { return _chopCommand ?? (_chopCommand = new RelayCommand(() => { chop(); })); }
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174
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+
}
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175
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+
private RelayCommand _chopCommand;
|
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176
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+
#endregion
|
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117
177
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}
|
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178
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+
}
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118
179
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119
180
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public class Person : ObservableCollection<Person>
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120
181
|
{
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