8.ListBoxにWクリック実装(引数あり)
戻るBinding SelectedItem指定
「7.ListBoxにWクリック実装」に加えて、ListBoxの引数としてCommandParameterを使用して、予約語のSelectedItemをバインドします。SelectedItemは言葉どおりで、選択されている行の値が入っています。
起動時
クリックすると拡大します
下記がテキストボｯクスとリストボックスのZAMLです。
View
<ccl:CustomChromeWindow
x:Class="LivetWPFChromeHelpDesk1.Views.Window15"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:shell="http://schemas.microsoft.com/winfx/2006/xaml/presentation/shell"
xmlns:ccl="clr-namespace:CustomChromeLibrary;assembly=CustomChromeLibrary"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:l="http://schemas.livet-mvvm.net/2011/wpf"
xmlns:core="clr-namespace:Microsoft.Expression.Interactivity.Core;assembly=Microsoft.Expression.Interactions"
xmlns:v="clr-namespace:LivetWPFChromeHelpDesk1.Views"
xmlns:vm="clr-namespace:LivetWPFChromeHelpDesk1.ViewModels"
WindowStartupLocation="CenterScreen"
Title="Window15" Height="714" Width="1035">
<shell:WindowChrome.WindowChrome>
<shell:WindowChrome
ResizeBorderThickness="6"
CaptionHeight="43"
CornerRadius="0,0,0,0"
GlassFrameThickness="0">
</shell:WindowChrome>
</shell:WindowChrome.WindowChrome>
<Window.Resources>
<ResourceDictionary>
<vm:XComboBoxEmptyItemConverter x:Key="XComboBoxEmptyItemConverter"/>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="/Resources/Styles.xaml"/>
<ResourceDictionary Source="/Resources/Styles2.xaml"/>
<ResourceDictionary Source="/Resources/StylesBG.xaml"/>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Window.Resources>
<Window.DataContext>
<vm:ViewModel15/>
</Window.DataContext>
<i:Interaction.Triggers>
<l:InteractionMessageTrigger
MessageKey="MessageKey16" Messenger="{Binding Messenger}">
<l:TransitionInteractionMessageAction
WindowType="{x:Type v:Window16}" Mode="Modal"/>
</l:InteractionMessageTrigger>
<!--WindowのContentRenderedイベントのタイミングでViewModelのInitializeメソッドが呼ばれます-->
<i:EventTrigger EventName="ContentRendered">
<l:LivetCallMethodAction MethodTarget="{Binding}" MethodName="Initialize"/>
</i:EventTrigger>
<!-- 下記がないと、タスクバーが1つにならない -->
<i:EventTrigger EventName="Loaded">
<i:InvokeCommandAction Command="{Binding Path=Loaded}"
CommandParameter="{Binding Mode=OneTime,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type Window}}}"/>
</i:EventTrigger>
<!-- Activatedを設定する -->
<!--
<i:EventTrigger EventName="Activated" >
<i:InvokeCommandAction Command="{Binding Activated}" />
</i:EventTrigger>
-->
<i:EventTrigger EventName="Closing">
<i:InvokeCommandAction Command="{Binding Path=Closing}"
CommandParameter="{Binding Mode=OneTime,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type Window}}}"/>
</i:EventTrigger>
<l:InteractionMessageTrigger MessageKey="Close" Messenger="{Binding Messenger}">
<l:WindowInteractionMessageAction/>
</l:InteractionMessageTrigger>
</i:Interaction.Triggers>
<!-- Grid-1 -->
<Grid>
<!-- WindowChrome Start -->
<Border Grid.RowSpan="2" BorderThickness="3" BorderBrush="Black">
<Border.Background>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<GradientStop Color="Black" Offset="0" />
<GradientStop Color="Black" Offset="1" />
</LinearGradientBrush>
</Border.Background>
</Border>
<Border BorderThickness="3,3,3,1" BorderBrush="Black" Margin="{Binding Path=CaptionButtonMargin}">
<Border.Background>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<GradientStop Color="Black" Offset="0" />
<GradientStop Color="Black" Offset="1" />
</LinearGradientBrush>
</Border.Background>
<!--Window Icon and Title-->
<StackPanel Orientation="Horizontal" Margin="0" VerticalAlignment="Top">
<TextBlock Text=" Help Desk" FontFamily="Calibri" FontWeight="Bold" FontSize="26" Foreground="Blue" />
</StackPanel>
</Border>
<ccl:CaptionButtons />
<!-- WindowChrome End -->
<!-- Grid-2 -->
<!--Content-->
<Grid Grid.Row="1">
<!-- ★★★ -->
<Grid>
<TextBox Text="{Binding Path=txt本日}" TextAlignment="Center"
Foreground="White" Background="Black"
Height="17" HorizontalAlignment="Center" Name="txt本日"
VerticalAlignment="Top" Width="81" Margin="809,3,123,0" />
<ListBox x:Name="listBox1"
ItemsSource="{Binding StaffListView}"
Foreground="White" Background="Black"
HorizontalContentAlignment="Stretch" Margin="69,87,0,478"
HorizontalAlignment="Left" Width="186" >
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding}">
<TextBlock.InputBindings>
<MouseBinding Gesture="LeftDoubleClick"
Command="{Binding RelativeSource={RelativeSource AncestorType={x:Type ListBox}}, Path=DataContext.GotoCommand16}"
CommandParameter="{Binding SelectedItem, ElementName=listBox1}" />
</TextBlock.InputBindings>
</TextBlock>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<TextBox Text="{Binding Path=txtMessage, Mode=TwoWay}"
Foreground="White" Background="Black" Height="24"
VerticalContentAlignment="Center" HorizontalAlignment="Left"
VerticalAlignment="Top" Width="160" Margin="277,87,0,0" />
</Grid>
<!-- ★★★ -->
</Grid>
</Grid>
</ccl:CustomChromeWindow>
ViewModelは下記の通りです。
ViewModel
using System;
using System.Collections.Generic;
using System.Linq;
//INotifyPropertyChanged
//PropertyChanged
using System.ComponentModel;
//参照設定が必要
//using System.Configuration;
using Livet;
using Livet.Commands;
using Livet.Messaging;
//CloseCommand
using Livet.Messaging.Windows;
//ICommand
using System.Windows.Input;
//MessageBox
using System.Windows;
// ListCollectionView
using System.Windows.Data;
using LivetWPFChromeHelpDesk1.Models;
using LivetWPFChromeHelpDesk1.Views;
using LivetWPFChromeHelpDesk1.ViewModels;
namespace LivetWPFChromeHelpDesk1.ViewModels
{
class ViewModel15 : ViewModel
{
#region 変更通知プロパティ
//-----------------------------------------------
private string _PersonName;
public string PersonName
{
get { return _PersonName; }
set
{
_PersonName = value;
RaisePropertyChanged("PersonName");
}
}
//
public string txt本日 { get; set; }
//
private string _txtMessage;
public string txtMessage
{
get { return _txtMessage; }
set
{
_txtMessage = value;
RaisePropertyChanged("txtMessage");
}
}
#endregion
Window win = null;
public ViewModel15()
{
Loaded = new Livet.Commands.ListenerCommand<Window>((w) =>
{
if (NeedHideOwner && w.Owner != null && w.Owner.Visibility == Visibility.Visible)
{
win = w;
//w.Owner.Hide();
}
});
/*
Closing = new Livet.Commands.ListenerCommand<Window>((w) =>
{
if (NeedHideOwner && w.Owner != null)
{
w.Owner.Show();
}
});
*/
//Initialize()では表示されない
txt本日 = Convert.ToString(DateTime.Today.ToShortDateString());
}
public bool NeedHideOwner { get; set; }
public ICommand Loaded { get; private set; }
// public ICommand Closing { get; private set; }
public void Initialize()
{
if (win != null) win.Owner.Hide();
//★ListCollectionView 5-2
this.StaffList = new List<string>();
GetPersonData();
//★ListCollectionView 5-4
this.StaffListView = new ListCollectionView(this.StaffList);
this.StaffListView.CurrentChanged += StaffListView_CurrentChanged;
//下記のRefreshでListBoxへバインドを実行させます
this.StaffListView.Refresh();
}
#region StaffListView 社員一覧(ComboBox)
//★ListCollectionView 5-1
private List<string> StaffList;
/// <summary>
/// 社員一覧(ListBox)
/// </summary>
private ListCollectionView _StaffListView;
public ListCollectionView StaffListView
{
get
{ return _StaffListView; }
set
{
if (_StaffListView == value)
return;
_StaffListView = value;
RaisePropertyChanged("StaffListView");
}
}
//
void StaffListView_CurrentChanged(object sender, EventArgs e)
{
this.StaffListView.Refresh();
//
var lv = sender as ICollectionView;
if (lv.CurrentPosition < 0)
{
System.Diagnostics.Trace.WriteLine("選択無し");
return;
}
txtMessage = lv.CurrentItem as string;
}
#endregion
#region GetDataCommandコマンド
public void GetPersonData()
{
this.StaffList.Add("");
this.StaffList.Add("小堺 一機");
this.StaffList.Add("柳葉 敏郎");
this.StaffList.Add("吉田 栄作");
this.StaffList.Add("長井 秀和");
this.StaffList.Add("竹内 力");
this.StaffList.Add("宮崎 駿");
this.StaffList.Add("小池 徹平");
this.StaffList.Add("高橋 由美子");
this.StaffList.Add("岡本 真夜");
this.StaffList.Add("山口 達也");
}
#endregion
#region GotoCommand16
ListenerCommand<string> _GotoCommand16;
public ListenerCommand<string> GotoCommand16
{
get
{
if (_GotoCommand16 == null)
{
_GotoCommand16 = new ListenerCommand<string>(GetPersonName, () => true);
}
return _GotoCommand16;
}
}
void GetPersonName(string str)
{
if (str == null)
{
Messenger.Raise(new InformationMessage("Cancel", "Error", MessageBoxImage.Error, "Info"));
return;
}
if (str != null && str.Length > 0)
{
Messenger.Raise(new TransitionMessage(new ViewModel16(str) { NeedHideOwner = true }, "MessageKey16"));
}
}
#endregion
}
}