【发布时间】:2017-05-01 07:38:01
【问题描述】:
我有以下几点:
<ListView SelectionMode="Multiple" SelectedIndex="{Binding SelectedIdx}" SelectionChanged="ItemsList_SelectionChanged" MinHeight="200" x:Name="ItemsList" ItemsSource="{Binding Items}" Background="Yellow" Grid.Row="1">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<!-- note that the list mode is wide enough to force a wrap to each new line -->
<WrapPanel Width="{Binding ActualWidth, ElementName=ItemsList}" />
</ItemsPanelTemplate>
</ListView.ItemsPanel>
<ListView.ItemTemplate>
<DataTemplate>
<local:Item/>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="Padding" Value="0"/>
<Setter Property="Margin" Value="0"/>
</Style>
</ListView.ItemContainerStyle>
</ListView>
每个单独的“项目”xaml 都有未调用但 OnMouseOver 的 mousedown 回调。
ItemsList_SelectionChanged 也永远不会被调用。
项目 xaml 非常基本:
<ListViewItem x:Class="Controls.Item"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:Controls"
mc:Ignorable="d"
xmlns:ViewModel="clr-namespace:Controls.Controls.Item.ViewModel"
d:DesignHeight="50" d:DesignWidth="50"
Width="50"
Height="50"
Background="Blue"
Padding="0,0,0,0"
MouseLeftButtonDown="ListViewItem_MouseLeftButtonDown">
<!-- <Grid>
< ! - - <Label IsHitTestVisible="False" Width="50" Height="50" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" FontSize="10" Background="Pink" Content="{Binding Label}"/> - - >
</Grid> -->
</ListViewItem>
就像我之前说的,'ListViewItem_MouseLeftButtonDown' 也不会被调用,但如果有一个 MouseOver 事件会被调用。
【问题讨论】: