单击时获取列表框项目内的控件内容
我有一个像这样的 ItemTemplate
<ListBox>
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Button Grid.Row="0">
<Button.Template>
<ControlTemplate>
<Border BorderBrush="AntiqueWhite" BorderThickness="1">
<StackPanel Orientation="Horizontal" Background="Gray" Width="465">
<Image Margin="2,0,10,0" Source="{Binding StateImage}" Stretch="None"/>
<TextBlock Name="txt" Text="{Binding DateLabel}"/>
</StackPanel>
</Border>
</ControlTemplate>
</Button.Template>
<Custom:Interaction.Triggers>
<Custom:EventTrigger EventName="Click">
<mx:EventToCommand Command="{Binding VisibilityListboxCommand}"
CommandParameter="{Binding EementName=txt, Path=Text}"
/>
</Custom:EventTrigger>
</Custom:Interaction.Triggers>
</Button>
<ListBox Grid.Column="1" ItemsSource="{Binding WhatsonList, Mode=OneWay}">
<ListBox.ItemTemplate>
<DataTemplate>
<Border BorderBrush="Gray" BorderThickness="0,0,0,1" Padding="0,0,0,10">
<Grid Margin="0,10,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="360"/>
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="0">
<Button>
.....
</Button>
<CheckBox Template="{StaticResource CheckboxImageTemplate}" Margin="0,5,0,0"/>
</StackPanel>
<ListBox Grid.Column="1">
.....
</ListBox>
</Grid>
</Border>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
当我单击 listboxitem 数据模板内的按钮时,我想获取文本块 txt 的内容,以找出单击了哪个列表框项目来追溯列表框绑定的列表(模型)中的索引。 但从命令参数我无法得到任何东西,因为我认为有很多名为 txt 的文本块。
请帮我 !
I have a ItemTemplate like this
<ListBox>
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Button Grid.Row="0">
<Button.Template>
<ControlTemplate>
<Border BorderBrush="AntiqueWhite" BorderThickness="1">
<StackPanel Orientation="Horizontal" Background="Gray" Width="465">
<Image Margin="2,0,10,0" Source="{Binding StateImage}" Stretch="None"/>
<TextBlock Name="txt" Text="{Binding DateLabel}"/>
</StackPanel>
</Border>
</ControlTemplate>
</Button.Template>
<Custom:Interaction.Triggers>
<Custom:EventTrigger EventName="Click">
<mx:EventToCommand Command="{Binding VisibilityListboxCommand}"
CommandParameter="{Binding EementName=txt, Path=Text}"
/>
</Custom:EventTrigger>
</Custom:Interaction.Triggers>
</Button>
<ListBox Grid.Column="1" ItemsSource="{Binding WhatsonList, Mode=OneWay}">
<ListBox.ItemTemplate>
<DataTemplate>
<Border BorderBrush="Gray" BorderThickness="0,0,0,1" Padding="0,0,0,10">
<Grid Margin="0,10,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="360"/>
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="0">
<Button>
.....
</Button>
<CheckBox Template="{StaticResource CheckboxImageTemplate}" Margin="0,5,0,0"/>
</StackPanel>
<ListBox Grid.Column="1">
.....
</ListBox>
</Grid>
</Border>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
When I click on button inside listboxitem datatemplate I want to get content of textblock txt to find out what listbox item was clicked to trace back index in the List(model) that listbox bind from.
But from commandparameter I cannot get anything because there are many textblock named txt I think.
Please help me !
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解决此问题的更好方法是将 CommandParameter 绑定到项目的 DataContext 中的“thing”,如下所示:
这样,绑定不依赖于存在且具有特定名称的特定控件。
A better way to solve this is by binding the CommandParameter to 'thing' in the DataContext of the item like this:
This way the binding does not rely on a particular control being present and having a specific name.