WPF 鼠标移动到列表上 显示列表图标
在列表新建一个图标，添加 Visibility
Visibility="{Binding RelativeSource={RelativeSource AncestorType=ListBoxItem}, Path=IsMouseOver, Converter={StaticResource BooleanToVisibilityConverter}}"
我这里用的是 TextBlock ，鼠标移动就会显示
<ListView AlternationCount="10">
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="20"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition ></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding RelativeSource={RelativeSource AncestorType=ListBoxItem}, Path=(ItemsControl.AlternationIndex),Mode=OneWay,Converter={StaticResource NumberAddOne}}"></TextBlock>
<TextBlock Grid.Column="1" Text="点击"
Visibility="{Binding RelativeSource={RelativeSource AncestorType=ListBoxItem}, Path=IsMouseOver, Converter={StaticResource BooleanToVisibilityConverter}}"></TextBlock>
<TextBlock Grid.Column="2" Text="lindexi"></TextBlock>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>获取当前列表项，使用{Binding RelativeSource={RelativeSource AncestorType=ListBoxItem}, Path=(ItemsControl.AlternationIndex),Mode=OneWay,Converter={StaticResource NumberAddOne}}。注意 AlternationCount 如果没设不会显示
<ListView AlternationCount="10">
<ListViewItem>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="20"></ColumnDefinition>
<ColumnDefinition ></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding RelativeSource={RelativeSource AncestorType=ListBoxItem}, Path=(ItemsControl.AlternationIndex),Mode=OneWay,Converter={StaticResource NumberAddOne}}"></TextBlock>
<TextBlock Grid.Column="1" Text="lindexi"></TextBlock>
</Grid>
</ListViewItem>
</ListView> public class NumberAddOne : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var index = (int)value;
return index + 1;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}为何添加上面转化，这个程序员和客户对于数组的开始是不同的。
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