英文:
Binding ListBox Item Index
问题
I have a ListBox in a ToolBar with images.
I want to bind the selected item with a property "SelectedLockView"
<ToolBar Style="{DynamicResource MaterialDesignToolBar}" HorizontalAlignment="Left">
<ListBox Height="50" x:Name="ListBoxLockView" VerticalAlignment="center">
<Behaviors:Interaction.Triggers>
<Behaviors:EventTrigger EventName="SelectionChanged">
<Behaviors:InvokeCommandAction Command="{Binding ListBoxLockView_SelectionChanged}"/>
</Behaviors:EventTrigger>
</Behaviors:Interaction.Triggers>
<ListBoxItem x:Name="Lock" ToolTip="锁定视图">
<materialDesign:PackIcon Kind="lock"/>
</ListBoxItem>
<ListBoxItem x:Name="UnLock" ToolTip="解锁视图">
<materialDesign:PackIcon Kind="UnlockedMinus" />
</ListBoxItem>
</ListBox>
<TextBlock Text="{Binding MsgVues}" />
</ToolBar>
Can you help me?
英文:
I have a ListBox in a ToolBAr with images.
I want to bind the selected item with a property "SelectedLockView"
<ToolBar Style="{DynamicResource MaterialDesignToolBar}" HorizontalAlignment="Left" >
<ListBox Height="50" x:Name="ListBoxLockView" VerticalAlignment="center">
<Behaviors:Interaction.Triggers>
<Behaviors:EventTrigger EventName="SelectionChanged">
<Behaviors:InvokeCommandAction Command="{Binding ListBoxLockView_SelectionChanged}"/>
</Behaviors:EventTrigger>
</Behaviors:Interaction.Triggers>
<ListBoxItem x:Name="Lock" ToolTip="Vérouillage des vues">
<materialDesign:PackIcon Kind="lock"/>
</ListBoxItem>
<ListBoxItem x:Name="UnLock" ToolTip="Dévérouillage des vues">
<materialDesign:PackIcon Kind="UnlockedMinus" />
</ListBoxItem>
</ListBox>
<TextBlock Text="{Binding MsgVues}" />
</ToolBar>
Can you help me?
答案1
得分: 1
你可以将 SelectedLockView 绑定到你的 ListBox 的 SelectedItem：
<ToolBar Style="{DynamicResource MaterialDesignToolBar}" HorizontalAlignment="Left">
<ListBox Height="50" x:Name="ListBoxLockView" VerticalAlignment="center" SelectedItem="{Binding SelectedLockView}">
<ListBoxItem x:Name="Lock" ToolTip="Vérouillage des vues">
<materialDesign:PackIcon Kind="lock"/>
</ListBoxItem>
<ListBoxItem x:Name="UnLock" ToolTip="Dévérouillage des vues">
<materialDesign:PackIcon Kind="UnlockedMinus" />
</ListBoxItem>
</ListBox>
<TextBlock Text="{Binding MsgVues}" />
</ToolBar>
当你在 ListBox 中选择一个项目时，绑定将接收到新选择的项目。在 SelectedLockView 属性的 setter 代码中，你将得到一个 ListBoxItem 作为 value。因此，SelectedLockView 应该是一个 Object 或 ListBoxItem。如果它是一个 Object，你可以使用 CType(value, ListBoxItem) 将其转换为 ListBoxItem。然后，你可以获取所选项目的名称：
Private _selectedItem As ListBoxItem
Public Property SelectedLockView As ListBoxItem
Get
Return _selectedItem
End Get
Set(value As ListBoxItem)
_selectedItem = value
MsgBox(_selectedItem.Name & " was selected.")
End Set
End Property
英文:
You can bind SelectedLockView to your ListBox's SelectedItem:
<ToolBar Style="{DynamicResource MaterialDesignToolBar}" HorizontalAlignment="Left">
<ListBox Height="50" x:Name="ListBoxLockView" VerticalAlignment="center" SelectedItem="{Binding SelectedLockView}">
<ListBoxItem x:Name="Lock" ToolTip="Vérouillage des vues">
<materialDesign:PackIcon Kind="lock"/>
</ListBoxItem>
<ListBoxItem x:Name="UnLock" ToolTip="Dévérouillage des vues">
<materialDesign:PackIcon Kind="UnlockedMinus" />
</ListBoxItem>
</ListBox>
<TextBlock Text="{Binding MsgVues}" />
</ToolBar>
When you select an item in the ListBox, the binding will receive the newly selected item. In the SelectedLockView property setter code, you will get a ListBoxItem as the value. SelectedLockView should therefore be an Object or a ListBoxItem. If it is an Object, you can use CType(value, ListBoxItem) to convert it to a ListBoxItem. You can then get the name of the selected item:
Private _selectedItem As ListBoxItem
Public Property SelectedLockView As ListBoxItem
Get
Return _selectedItem
End Get
Set(value As ListBoxItem)
_selectedItem = value
MsgBox(_selectedItem.Name & " was selected.")
End Set
End Property
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